POWER SPECTRA INC /CA/
10-K/A, 1997-05-16
COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 10-K/A
(Mark one)
          
               [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
                   OF THE SECURITIES EXCHANGE ACT OF 1934

                   For the fiscal year ended December 31, 1996

                                       OR

               [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
                   OF THE SECURITIES EXCHANGE ACT OF 1934
                  For the transition period from ______to_____

                         Commission File Number 0-16672

                               POWER SPECTRA, INC.
             (Exact name of Registrant as specified in its charter)

           California                                    94-2687782
(State or other jurisdiction of              (I.R.S Employer Identification No.)
 incorporation or organization)

                                919 Hermosa Court
                               Sunnyvale, CA 94086
           (Address of principal executive offices including zip code)

       Registrant's telephone number, including area code: (408) 737-7977

    Securities Registered pursuant to Section 12(b) of the Act: Common Stock,
                          no par value (Title of Class)
        Securities Registered pursuant to Section 12(g) of the Act: None

Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  Registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past ninety days.

                                    YES X NO
                                       ---   ---
Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of Registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ X ]

As of March  31,  1997,  the  aggregate  market  value of voting  stock  held by
non-affiliates  of the Registrant was $6,492,146,  based upon the average of the
closing  ask and bid  prices  as  reported  on the  non-Nasdaq  over-the-counter
bulletin board. For purposes of this disclosure,  shares of Common Stock held by
persons who hold more than 5% of the  outstanding  shares of Common  Stock,  and
shares held by officers and directors,  have been excluded, in that such persons
may be  deemed  to be  "affiliates"  as that  term is  defined  in the rules and
regulations  promulgated  under  the  Securities  Exchange  Act  of  1934.  This
determination is not necessarily conclusive for other purposes.

As of March 31, 1997,  16,161,009  shares of the Registrant's  Common Stock were
issued and outstanding.

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<PAGE>

                       DOCUMENTS INCORPORATED BY REFERENCE


         None.

                                       2
<PAGE>

                                     PART I

         This  section and other parts of this  Report  contain  forward-looking
statements that involve risks and  uncertainties.  The Company's  actual results
may differ  significantly  from the  results  discussed  in the  forward-looking
statements.  Factors  that might cause such a  difference  include,  but are not
limited to, those discussed in the section entitled "Management's Discussion and
Analysis of Financial  Condition and Results of Operations -- Factors  Affecting
Operating  Results and Market  Price of Stock"  commencing  on page 15.  Certain
sections in this report  have been  identified  as  containing  forward  looking
statements.  The reader is cautioned that other sections and other sentences not
so identified may also contain forward looking information.

         This Report contains  forward-looking  statements within the meaning of
Section 27A of the  Securities  Act of 1933 and  Section  21E of the  Securities
Exchange  Act of  1934.  Actual  results  could  differ  materially  from  those
projected in the forward-looking  statements as a result of the risk factors set
forth below and elsewhere in this Report.  The Company has attempted to identify
forward-looking  statements  by placing an asterisk  immediately  following  the
sentence or phrase that contains the  forward-looking  statement.  The reader is
cautioned  that other  sentences or phrases not so  identified  may also contain
forward-looking information.

ITEM 1.  BUSINESS

General

         Power   Spectra,   Inc.   ("Power   Spectra,"  the  "Company,"  or  the
"Registrant")  is a California  corporation  organized in 1979 and operates as a
single  business  segment.  Prior to 1990,  the Company was a development  stage
company.

         The Company  develops,  designs,  manufactures  and markets a family of
products  that  utilize   proprietary   Gallium  Arsenide  ("GaAs")   high-speed
semiconductor   devices  which  are  capable  of  generating   extremely  rapid,
high-power  electromagnetic  impulses.  The  primary  business of the Company is
related to the Bulk Avalanche Semiconductor Switch (BASS(TM)) and PSIristor(TM).
These are optically  triggered  high-power  switches which have applicability in
high-resolution  radar,  electronic  warfare,  communications,   and  industrial
applications such as level control, positioning,  velocity measurement, obstacle
detection and avoidance,  and many other industrial uses.  Historically BASS(TM)
development and applications have primarily addressed military  requirements and
have accounted for roughly 90% of the Company's  revenues.  The Company believes
its new family of powerful,  reliable, cost effective pulsed optical and impulse
generating  switches also have growing  applications in a number of existing and
emerging  industrial  markets such as  Ultra-Wideband  Ground  Penetrating Radar
("UWB GPR"),  distance  measurement  sensors and automotive  collision avoidance
systems.

Bulk Avalanche Semiconductor Switch (BASS)(TM)

         The degree to which extremely rapid, high-power  electromagnetic pulses
can  be  generated   has  been  a  limiting   factor  in  the   improvement   of
high-resolution  radar and electronic warfare systems.  Generation of very short
duration,  high peak power pulses is not possible with existing  devices such as
krytrons, spark gaps, thyratrons, planar triodes, and avalanche transistors. All
these devices are limited by fundamental physics in turn-on time. It is also not
possible  to  generate  the high  peak  power,  very  short  duration,  time and
frequency  domain  coherent RF pulses  with other  devices  such as  magnetrons,
klystrons, or gyrotrons.

         The BASS(TM)  device has been  developed and patented by Power Spectra.
The creation of BASS(TM) technology has resulted from two important factors: the
evolution of gallium  arsenide  (GaAs)  technology for high-speed  semiconductor
applications,  and the  patented  Bulk  Avalanche  process,  developed  by Power
Spectra founder Stephen Davis.

         Gallium arsenide technology has well-established advantages for certain
semiconductor applications.  GaAs allows significantly faster electron travel in
semiconductors  and is much more  resistant to radiation  bombardment,  a factor
that is important in military and space applications.

         The BASS(TM) is a solid-state  gallium arsenide device roughly the size
of a  conventional  power  transistor  and  is  triggered  by a  small  external
semiconductor  laser diode. In its "off" state,  very high impedance is achieved
by the 

                                       3
<PAGE>

high-purity  GaAs.  Switching is achieved  when  electrons and holes are rapidly
accelerated  within the field of the device. By this means, the BASS(TM) changes
from a  non-conducting  to a conducting state in approximately 20 trillionths of
one second.  Because conduction is enabled and controlled  throughout the volume
of the BASS(TM), extremely high voltages can be controlled,  presently in excess
of 15 kilovolts. In addition, because of the uniform turn-on throughout the bulk
of the BASS(TM),  very rapid turn-on,  high voltage,  high current pulses can be
generated. The Company believes that the BASS(TM) could in the future enable the
development  of high  resolution  imaging  radar,  a new  system  of  electronic
warfare, and other applications.

Boeing Program

         Effective  January  1,  1989,  Power  Spectra  and The  Boeing  Company
("Boeing")  entered into a development and marketing  agreement  relative to the
Company's BASS(TM) products (the "Boeing Agreement").  Funding under the initial
2-1/2-year development term of that agreement was based on the Company's ability
to meet certain milestones in the development of the BASS(TM) technology and the
demonstration of manufacturable BASS(TM) devices.

         The initial phase of the Boeing Agreement was completed in 2-1/4 years.
A new agreement,  which continued through June 30, 1994, was negotiated pursuant
to which Boeing funded development costs of $4,200,000 in 1991 and $3,500,000 in
1992.  In  1991  and  1992,   the  Company   completed   significant   technical
demonstrations  of  capability  with Boeing in the areas of wide-band  radar and
electronic warfare.

         In March 1993, the Company  announced that Boeing would fund $3,100,000
for research  activities which were performed  entirely in 1993, and that Boeing
would fund  $1,600,000 for activities to be completed in 1994. In February 1994,
Boeing and Power Spectra  finalized the 1994  statement of work and extended the
research  agreement to August 31, 1994.  All work under the Boeing  statement of
work was completed and no additional funding is being provided by Boeing.

         The Boeing research period of performance  expired in June 1994.  Under
the terms of the amended  agreement,  Boeing  continues  to  provide,  on a loan
basis,  $2.8 million of equipment and has agreed to allow the Company  continued
rent-free  use of this  equipment,  subject  to annual  review.  If the  Company
desires to acquire title and ownership to the equipment,  the Company and Boeing
will negotiate appropriate consideration in return for such title and ownership.

         Under the amended agreement,  and in exchange for having provided $23.5
million  in  research  and  development  funding,  Boeing  retains a  perpetual,
non-exclusive license to use the technology developed during the agreement,  and
to market systems containing BASS(TM) devices. In addition, the Company will pay
Boeing a royalty  of 4% of  BASS(TM)  product  sales up to a maximum  cumulative
royalty  payment of $10 million.  The Company  retains the right to  manufacture
BASS(TM) devices for incorporation into larger systems to be marketed by Boeing.

Air Force Contract

         In 1990,  the  Company  was  awarded  the  first  phase of a  two-phase
competitive  contract for the development of a solid-state  high-power microwave
source for the United States Air Force (the "Air Force  Contract").  This source
was designed to exploit the  capabilities  of the  BASS(TM)  device and is being
used by the Air Force to test the effects of high power microwave pulses.

         The  Phase  I   cost-plus-fixed-fee   contract  value  was  $5,192,744,
including  $957,688  awarded in 1992  pursuant  to an  amendment  to Phase I. In
January 1993,  the Air Force  exercised an option (Phase II) to have the Company
manufacture  a  nine-element  antenna  array  for  a  total  contract  price  of
$3,537,510 over an 18-month period. An additional  modification relating to site
support and training was added in June 1993,  bringing the total  contract value
to  $8,739,290.  The  Company  delivered  the  nine-element  array in  mid-1994.
Subsequent to this delivery,  the Air Force has extended the contract to upgrade
the prototype  equipment  delivered in Phase I to a technology  level similar to
that provided in Phase II. This contract extension raised the aggregate contract
value to $9,533,771. In 1995, the US Army contracted through the Air Force using
the Air Force's  existing  contract  with the Company to deliver a Phase II-type
technology  transmitter for use in foliage and ground penetrating radar testing,
and perform a risk reduction  assessment to make the technology suitable for use
onboard aircraft.  The aggregate  contract value was increased to

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<PAGE>

$10,517,881 on February 8, 1995. The Company has delivered all items required by
the contract and all items were accepted by the government. The contract expired
on June 1, 1996,  but is still  subject to audit by the Defense  Contract  Audit
Agency for overhead rates applied to the contract for fiscal years,  1994, 1995,
and 1996.  As such the  Company  may be  subject  to  adjustments  up or down on
contract  revenues.  While  such  audits  are both  routine  and  required,  the
timetable for the audit is unknown at present,  and no  assurances  can be given
that  such  audit  will not  result in  significant  payment  obligation  to the
government.

Commercial Products

         As part of the Company's  diversification  effort in 1992,  the Company
entered  into a  technology  license and  development  agreement  with the Ioffe
(pronounced "yahf-ah")  Physical-Technical  Institute ("Ioffe"), St. Petersburg,
Russia (the  "Ioffe  Agreement").  Ioffe and the Company are jointly  developing
advanced gallium arsenide  semiconductor  devices. To accelerate the development
of such  devices,  Russian  scientists,  sponsored in part by the United  States
Department of Commerce Special  American  Business  Internship  Training (SABIT)
Program,  were brought to work at the Company's  Sunnyvale  facility for varying
periods to facilitate the technology transfer.

         Development  of a new line of  semiconductor  products,  using advanced
gallium  arsenide  switching  technology to enhance the  Company's  laser driver
technology,  was  launched.   Initially  undertaken  to  support  the  Company's
BASS(TM)-based  systems,  the  Company  believes  that such a  product  line has
broader  applications,  and the  Company's  goals for this  product line are now
focused  on mass  industrial  and  military  markets  not  associated  with  the
BASS(TM).*

         In 1996 the Company changed the main focus of its business efforts from
the military  market to the  commercial  sector.  The Company has identified and
begun the  development  of the initial  products and services for three separate
commercial  applications,  each with significant market and profit potential for
the Company.* These initiatives are: 1) a joint venture for the development of a
commercial   Ground-Penetrating   Radar  ("GPR")  based  mineral  and  petroleum
exploration   system;   2)  a   joint   venture   for  the   development   of  a
helicopter-mounted  GPR system for the  location  and  identification  of buried
artifacts;  and 3) the  development  and marketing of an  electro-optical  range
finder for the industrial marketplace.

         Several other products have been developed for the industrial  markets.
The Company  introduced two such products during late 1993 and an additional two
products in the first quarter of 1994.  Promotion of these products has included
news  releases,   advertising  in  trade  publications,   direct  mailings,  and
exhibition at trade conferences.

         The first product, called the BASS-01X, is a compact,  high-peak power,
ultra-wideband pulse generator based on the Company's BASS(TM) technology.  This
unit  generates  a  0.5-megawatt,  600-picosecond  video  pulse  waveform.  This
waveform has a fast leading edge of less than 120 picoseconds, which provides an
ultra-wideband  frequency spectrum extending from D.C. to in excess of 3GHz. The
unit is  meant  to  serve  as a  reasonably  priced  demonstrator  that  permits
customers to explore  high-power  ultra-wideband  pulse  technology in their own
applications.  The Company believes, as was exemplified by the sale of the first
unit,  that small size and ruggedness will enable the BASS-01X to be used in the
field for such commercial  objectives as underground  site surveying,  since its
high peak power makes it useful for airborne and deep ground penetration units.*

         The second product,  called the Pulsed Optical Source  (POS(TM)),  is a
device that integrated a pulsed laser diode and GaAs driver  circuitry  directly
within a  windowed  TO-5 can  measuring  0.33  inches in  diameter.  Performance
features are high peak power and  5-nanosecond  pulses at pulse repetition rates
up to 20  KHz.  Potential  applications  include  laser  rangefinders,  position
sensors, motion sensors, and communications. Sales to date for such applications
have been for small  quantities,  typically for  evaluation  and  integration in
larger  systems,  and the Company  knows of one large  system  design  which has
incorporated a prototype into the product.

- -------------------
*This statement is a forward-looking  statement reflecting current expectations.
Actual future  performance  may differ  materially  from the  Company's  current
expectations.  The  reader is  advised to review  "Management's  Discussion  and
Analysis of Financial  Condition and Results of Operations"  for a discussion of
factors that could affect future performance.

                                       5
<PAGE>

         The PGS-401,  a 2.5 KW impulse  transmitter,  was  introduced  early in
1994.  At the end of the year,  a lower cost,  lower  performance  version,  the
PGS-402, was introduced.  Subsequently,  the PGS-403,  PGS-404, and PGS-405 have
been  introduced.  The PGS-401 and PGS-402 are no longer  offered for sale.  The
Company   believes  that  these  products  have   applications   for  GPR,  test
instrumentation, electronic warfare, and communications.*

         In mid-1995, the Company introduced an industrial laser-ranging product
based on the Pulsed  Optical  Source  (POS(TM)) to address  existing  industrial
markets. Although the initial prototype experienced difficulty in its ability to
calculate  range  accurately,  a new design is presently  being tested and shows
promise of lower manufacturing costs.

         Several variants of the BASS-01X were produced and sold during 1995 and
1996.  The BASS-02X and BASS-03X  produce  waveforms and power levels  different
from the basic BASS-01X.  These were developed to match specific customer needs.
All of the BASS-0XX  series are packaged in a common,  81-cubic inch,  six-pound
package.

         To date, the Company has not generated  significant revenues from sales
of  commercial   products.   There  can  be  no  assurance  that  any  of  these
aforementioned  commercial  products  will be accepted in their target  markets,
that the Company will be successful in developing additional new products,  that
the Company will not experience delays in developing such products, or that such
products will achieve  commercial  success.  A sustained failure to successfully
develop  and sell new  products  would  have a  material  adverse  effect on the
Company's business and its results of operations.

Manufacturing

         The  Company  manufactures  all  of  its  products  at  its  Sunnyvale,
California  manufacturing  facility. In 1991, the Company completed construction
and put into operation a modern semiconductor  fabrication facility for BASS(TM)
development.  Boeing  provided  the funds to complete  the  construction  of the
facility and owns the facility and most of the equipment. This facility was used
as a prototype facility to identify the manufacturing requirements for BASS(TM).
The  facility  and  equipment  are  suitable  for  moderate  volume   pilot-line
production of devices to meet current application requirements.  This capability
has facilitated significant  improvements in product performance and reliability
as well as  productivity  of the staff.  During 1994,  the Company  installed an
epitaxial  furnace  to a design  specified  by Ioffe,  which  was the  principal
objective  of  the  Ioffe  Agreement.   The  Company  believes  that  additional
manufacturing  capacity,  when required, will be available through out-sourcing.
The  Company's  sole  manufacturing  facility is located in an area  adjacent to
major earthquake  faults.  The destruction of the Company's facility due to fire
or earthquake would have a material  adverse effect on the Company's  results of
operations.

         Boeing has  granted the  Company  the right to use its  equipment  on a
loaned  basis  for  the   Company's   purposes,   subject  to  annual   renewal.
Additionally,  should the Company  desire to acquire  title and ownership of the
loaned equipment,  Boeing and the Company will attempt to negotiate  appropriate
consideration in return for the transfer of title and ownership.  However, there
is no assurance that an agreement  satisfactory to the Company could be reached.
If Boeing  chooses to no longer loan the equipment to the Company,  as it may do
in its sole discretion,  and an acceptable  agreement for the Company's purchase
of the  equipment  cannot be  attained,  the  Company  would be required to find
alternative sources of equipment,  either for purchase or rent, or would have to
outsource  its  manufacturing  while  still  in  possession  of a  manufacturing
facility.  Any of these  circumstances could cause delays in the manufacture and
delivery of the Company's  products and could have a material  adverse impact on
the Company's results of operations.

         Materials  and  components  used  in the  manufacture  of  devices  are
generally available from a variety of sources.

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*This statement is a forward-looking  statement reflecting current expectations.
Actual future  performance  may differ  materially  from the  Company's  current
expectations.  The  reader is  advised to review  "Management's  Discussion  and
Analysis of Financial  Condition and Results of Operations"  for a discussion of
factors that could affect future performance.

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<PAGE>

Sales, Marketing, and Distribution

         Until the beginning of 1996,  the Company was primarily  focused on the
military  marketplace  and its  applications  for the Company's  technology.  In
January 1996,  the Company  changed the main focus of its business  efforts from
the military  market to the  commercial  sector.  The Company has identified and
begun  the  development  of  the  initial  products  and  services  for  several
commercial applications.

         The Company seeks a balance  between  industrial or standard  products,
and the major research and  development  efforts that have sustained the Company
in the past. In the military  sector,  the Company believes that the markets for
systems in which the Company's  BASS(TM) and  PSIristor(TM)  technologies  could
play a major role may  experience  less drastic  cutbacks  than weapons  systems
suitable  only for  strategic  warfare.*  The Company  also  believes  that U.S.
Government  spending  is  being  increasingly   directed  towards  research  and
development of innovative  technologies such as the BASS(TM) and PSIristor(TM).*
Also,   advanced  radar  and  electronic   warfare  systems  were  shown  to  be
particularly  effective  in  "Desert  Storm."  The  military,  has in the  past,
publicly stated that technology may allow leveraging strike force  effectiveness
in regional  conflicts,  and  protection  for forces from  battlefield  hazards.
Currently,  mine detection  capabilities  are being evaluated and debated by the
military and in the national press.

         The  marketing  goals  of  the  Company  include   obtaining   advanced
development contracts for new hardware based on equipment successfully delivered
to  military  customers  while  continuing  to expand its  industrial/commercial
product  line.  The Company  believes  that,  its  products  improved in several
respects during 1996 through miniaturization and increased reliability resulting
from  ongoing   developmental   work.  The  Company  believes  that  the  unique
characteristics of the BASS(TM) and PSIristor(TM)  make the products  attractive
for a variety of potential new applications.*

         The Company's  marketing  activities for its gallium arsenide  products
are conducted by an internal marketing staff. The Company's marketing activities
include  advertising in selected trade  publications and  participation in trade
shows, symposia, and conferences.

Competition

         The  capabilities of the BASS(TM) device have attracted other companies
with light-activated  semiconductor  technologies to compete in this market. The
major  competitive  technology in this area is the  linear-mode  light-activated
switch.  This device does not utilize  the unique  avalanche  phenomenon  of the
BASS(TM) and, therefore,  requires a large laser for its operation.  The Company
believes that system  end-users may not consider these systems  attractive since
the large  lasers are  generally  unreliable,  inefficient,  and do not have the
pulse repetition capability needed for some applications.*

         In addition,  other companies and government  laboratories are studying
semiconductor devices like the BASS(TM).

         The Company faces intense  competition  for  government  contracts from
larger companies with conventional technology,  which have substantially greater
financial  resources than the Company.  The largest  competitors include Hughes,
Raytheon, Lockheed Martin, TRW, Tracor, and Northrop Grumman.

Pulsed Optical Source

         Power Spectra is addressing a niche market for  industrial  measurement
devices using  short-pulse  diode lasers which have integrated driver circuitry.
The industrial  measurement  market is currently  served  primarily by expensive
high-performance  laser-based  systems  at the  top  end of the  market,  and by
inexpensive, lower performance ultrasonic-based systems on the lower end.

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*This statement is a forward-looking  statement reflecting current expectations.
Actual future  performance  may differ  materially  from the  Company's  current
expectations.  The  reader is  advised to review  "Management's  Discussion  and
Analysis of Financial  Condition and Results of Operations"  for a discussion of
factors that could affect future performance.

                                       7
<PAGE>

         The Company's  competitors in the pulsed-laser based measurement system
market include Laser Diode Products,  Inc., which offers a product which,  while
not  a  direct  replacement,  is a  possible  substitute.  In  addition,  future
competition  is expected to develop  from EG&G,  Inc.  However,  there can be no
assurances  that  these   companies  or  others  will  not  attempt   technology
development sufficient to become the technology leader in this niche.

         Power Spectra also competes with the major proximity  sensor vendors in
the  industrial  measurement  market,  including  Electro,  Micro Switch,  Massa
Products,  and Siemens, which had a combined share of 67% of the world market in
1993.

Pulse Generator Source

         In  order to  compete  for  other  niche  markets,  Power  Spectra  has
developed a family of  PSIristor(TM)-based  impulse  transmitters  that send out
high-power,  ultra-wide bandwidth signals through an antenna. These products are
available for sale to system vendors for use in a number of potential industrial
and environmental applications such as geographical exploration,  mine clearing,
pipeline mapping and leak detection, environmental cleanup, pavement assessment,
and airport ground surveillance.

         Failure  to  adequately  compete  in the  future  would have a material
adverse affect on the Company's business and results of operation.

Patents and Proprietary Rights

         The Company  relies  primarily  on its  technological  and  engineering
capabilities  for the development of its business.  The Company does not believe
that the grant of patents for concepts and processes  developed by its employees
is a critical  element of its future  growth.  However,  the  Company  does file
patent applications for certain concepts and processes. The Company has a patent
for a nanosecond  pulse generator  (planer  triode)  expiring in 2002, and three
patents for various aspects of BASS(TM)  technology  expiring in 2001, 2005, and
2006. The Company was also granted a patent for its Bulk Avalanche Semiconductor
Laser, which expires in 2007.

         The patent positions of technology  companies such as Power Spectra are
uncertain and involve complex legal issues and factual questions.  No assurances
can be given that any future patent  applications  will issue as patents or that
any issued  patents  will  provide the Company  with  adequate  protection  with
respect to the covered  products,  technology,  or  processes.  Moreover,  it is
possible that other  companies may assert that their patents cover the Company's
technologies or expected products. If patents are issued to other companies that
contain claims that conflict with or cover the Company's technologies,  products
or expected products,  and such claims are ultimately determined to be valid, no
assurance can be given that the Company would be able to obtain  licenses to any
such patents on acceptable  terms,  if at all, or develop or obtain  alternative
non-infringing   technology.  In  addition,  there  can  be  no  assurance  that
litigation  will  not  be  initiated  against  the  Company  or  its  customers,
regardless  of  merit,  alleging  infringement  of  patents  held by  others  or
challenging the Company's  patents.  Such litigation could result in substantial
cost to and diversion of effort and management time by the Company,  which could
have a material adverse effect on the Company,  regardless of the results of the
litigation.

         The Company,  with the  assistance of Boeing,  has attempted to protect
its rights to the BASS(TM)  technology  by acquiring  licenses to other  patents
which could be relevant to the BASS(TM)  technology.  These license  rights,  as
provided  in  the  Boeing  Agreement,  belong  to  the  Company.  The  Company's
agreements  with the U.S.  Government  provide that the  Company's  research and
development   activities  entitle  the  government  to  limited  rights  to  the
applications  developed by the Company in the  performance of  government-funded
contracts.  However,  the government  does not obtain any rights to the BASS(TM)
technology itself.

         In an effort to maintain  the  confidentiality  and  ownership of trade
secrets and other  confidential  information,  the Company  requires  employees,
consultants,  and certain collaborators to execute confidentiality and invention
assignment  agreements upon commencement of a relationship with the Company. The
agreements  are  intended  to enable the  Company to  protect  the  confidential
information from the  unauthorized  disclosure and use of technology to which it
has rights,  and to provide for ownership  by, or assignment  to, the Company of
confidential  technology  developed  at  the  Company,  or  with  the  Company's
resources.  There can be no  assurance,  however,  that  these 

                                       8
<PAGE>

agreements will provide meaningful protection for the Company's trade secrets or
other confidential information in the event of unauthorized use or disclosure of
such information.

Backlog

         As of December 31, 1996,  the Company's  backlog was  $113,606,  versus
$801,261 at December 31, 1995,  and $1,261,338 at December 31, 1994. The Company
expects to complete all of its current backlog within the next twelve months.*

         Sales of the Company's  products are made pursuant to standard purchase
orders that are cancelable without significant penalties. In addition,  purchase
orders are  subject to price  renegotiations  and to  changes in  quantities  or
products and delivery schedules caused by changes in customers' requirements. As
a result of the foregoing factors,  the Company does not believe that backlog at
any given time is a meaningful indicator of future sales.

Government Contract Matters

         Historically, a material portion of the Company's business results from
contracts  with  or  for  federal  government  agencies.   Government  contracts
generally  provide for the  termination  or adjustment of material terms of such
contracts  at the  election of the  government,  and the  government  may pursue
contractual,  administrative,  civil,  and  criminal  remedies  for  improper or
illegal activities associated with obtaining and performing government contacts.
Administrative  remedies include the suspension,  debarment, or ineligibility of
all  or  part  of  a   company   from   receiving   government   contracts   and
government-approved  subcontracts. As is the case with any company that performs
material amounts of business with the federal government, any such action by the
government could have a material impact upon the Company's business.

Environmental Compliance

         The  nature of the  business  subjects  the  Company  to a  variety  of
federal,  state,  and local  provisions  which  have  been  enacted  or  adopted
regulating  the  discharge  of  materials  into the  environment,  or  otherwise
relating to the protection of the environment.  The Company has not incurred any
material  operating  expenses nor been required to make any significant  capital
expenditures  to comply  with these  provisions.  Management  believes  that the
Company is not subject to any  outstanding  issues on past  non-compliance,  and
that the  Company  is  currently  in  compliance  with all  known  environmental
provisions.

Research and Development

         For the fiscal years ending  December 31,  1996,  1995,  and 1994,  the
Company's  research  and  development  expenses  were  $714,368,  $213,667,  and
$332,612,  respectively.  See  "Management  Discussion and Analysis of Financial
Condition and Results of Operations," for further discussion of this topic.

Employees

         As of December 31, 1996, the Company had 20 full-time  employees,  with
14 in technical  positions  and six in  administrative  capacities.  None of the
Company's  employees are represented by a labor union. The Company considers its
relations  with its employees to be good. The Company's  success  depends on its
ability  to hire  and  retain  highly  specialized  engineers,  scientists,  and
management personnel, and competition for such personnel is intense.

- ------------------
*This statement is a forward-looking  statement reflecting current expectations.
Actual future  performance  may differ  materially  from the  Company's  current
expectations.  The  reader is  advised to review  "Management's  Discussion  and
Analysis of Financial  Condition and Results of Operations"  for a discussion of
factors that could affect future performance.

                                       9
<PAGE>

 ITEM 2. PROPERTIES

         In late February 1992, the Company moved its headquarters from Fremont,
California,  to Sunnyvale,  California,  to combine all operations at a new site
where the Company's semiconductor processing facility was installed. The Company
leased 25,000 square feet of space at 919 Hermosa Court, Sunnyvale,  California,
under a five-year  lease (with an option to renew for a two-year  period)  which
commenced February 3, 1992. The Company is currently  negotiating renewal option
terms.  Payments under the lease totaled  $250,413 in 1996. The Company believes
that its current site is sufficient to house the  Company's  operations  for the
next twelve months.

ITEM 3.  LEGAL PROCEEDINGS

         None.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

         None.



                                       10
<PAGE>

                                     PART II

ITEM 5.  MARKET FOR THE COMPANY'S COMMON EQUITY AND
         RELATED STOCKHOLDER MATTERS

         The Company's Common Stock is traded in the non-Nasdaq over-the-counter
market and,  prior to December  17,  1992,  had been quoted on the Nasdaq  Stock
Market.  The Company's  Preferred Stock is not publicly traded.  On December 31,
1996, there were 703 holders of record of the Company's Common Stock, 13 holders
of record of the Company's Series A Preferred Stock, and 34 holders of record of
the Company's Series B Preferred Stock. The following table sets forth the high,
low,  and closing bid prices for the  Company's  Common Stock as reported by the
National  Quotation Bureau of Automatic Data Processing for each quarter of 1996
and  1995.  Prices  reflect  inter-dealer  prices,   without  retail  markup  or
commissions, and do not necessarily represent actual transactions.

================================================================================
                                      1996
- --------------------------------------------------------------------------------
    Quarter                                                    Closing
     Ended             High                  Low                Bid
================================================================================
 Mar. 31           2  -  1/8               11/16          1 - 11/16
- -------------------------------------------------------------------------------
 June. 30          2  -  1/16               7/8           1 - 11/16
- --------------------------------------------------------------------------------
 Sept. 30          1 - 13/16                 1            1 -  3/8
- --------------------------------------------------------------------------------
 Dec. 31           1 - 11/16                1/2               17/32
================================================================================
                                    1995
- --------------------------------------------------------------------------------
   Quarter                                                   Closing
    Ended             High                  Low                Bid
================================================================================
 Mar. 31           1 - 5/16                 11/16               7/8
- --------------------------------------------------------------------------------
 June. 30          1 - 5/8                    3/4          1 - 3/8
- --------------------------------------------------------------------------------
 Sept. 30          1 - 5/8                    7/8          1 - 1/16
- --------------------------------------------------------------------------------
 Dec. 31           1 - 1/4                    1/2             11/16
================================================================================

         No cash  dividends on Common Stock have been paid by the Company  since
its inception.  The Company has no plans for payment of cash dividends on Common
Stock in the foreseeable future, and intends to retain its earnings, if any, for
the  development of its business.  The Company is required to pay cash dividends
on its Series A Preferred  Stock  issued in 1994,  and on its Series B Preferred
Stock issued in 1995.  Dividends  payable on both series of the Preferred  Stock
for the 1996 fiscal year were $195,453.

                                       11
<PAGE>

ITEM 6.  SELECTED FINANCIAL DATA
<TABLE>

         The  following  table  reflects  selected  financial  data for the five
fiscal years ended December 31, 1996. The selected  financial data as of and for
each of the years in the five-year  period ended  December 31, 1996, are derived
from the audited financial  statements of the Company.  The financial statements
as of  December  31,  1995 and 1996,  and for the years  then  ended,  have been
audited  by  Grant  Thornton  LLP,  independent  accountants,  and are  included
elsewhere in this Report.  The statements of operations,  stockholders'  equity,
and cash flows for the year ended  December  31,  1994,  were audited by Ernst &
Young LLP, and are included  elsewhere in this Report.  The 1994,  1993 and 1992
balance  sheet  data  and the 1993 and 1992  statements  of  operation  selected
financial data presented below were derived from the Company's audited financial
statements  for those periods,  but are not presented  elsewhere in this report.
The data set  forth  below  should  be read in  conjunction  with the  financial
statements  and  related  notes and  "Management's  Discussion  and  Analysis of
Financial  Condition  and  Results of  Operations"  included  elsewhere  in this
Report.
<CAPTION>

                                           Statement of Operations Data:
=====================================================================================================
                               1996           1995            1994             1993          1992
- -----------------------------------------------------------------------------------------------------
<S>                      <C>             <C>             <C>             <C>            <C>         
Total revenues           $  1,000,114    $  1,429,625    $  3,060,098    $  6,052,692   $  5,635,697
- -----------------------------------------------------------------------------------------------------
Net income (loss)
   applicable to
   common shares         ($ 3,983,752)   ($ 2,751,425)   ($ 1,216,907)   $    146,293   ($   786,139)
- -----------------------------------------------------------------------------------------------------
Net income (loss)
per common share         ($      0.26)   ($      0.25)   ($      0.12)   $       0.01   ($      0.08)
- -----------------------------------------------------------------------------------------------------
Weighted average
shares outstanding         15,622,268      11,181,541      10,014,163       9,890,553      9,801,598
- -----------------------------------------------------------------------------------------------------

                                                Balance Sheet Data:
=====================================================================================================
                                1996            1995            1994            1993           1992
- -----------------------------------------------------------------------------------------------------

Current assets           $  1,205,439    $  2,929,050    $    661,045    $  1,908,681   $  1,794,321
- -----------------------------------------------------------------------------------------------------
Current liabilities      $    992,441    $    962,314    $    585,769    $    524,393   $  1,729,520
- -----------------------------------------------------------------------------------------------------
Working capital          $    212,998    $  1,966,736    $     75,276    $  1,384,288   $     64,801
- -----------------------------------------------------------------------------------------------------
Total assets             $  1,672,827    $  3,442,208    $  1,289,955    $  2,362,679   $  2,339,927
- -----------------------------------------------------------------------------------------------------
Long term debt           $          0    $          0    $          0    $          0   $          0
- -----------------------------------------------------------------------------------------------------
Stockholders'
   equity                $    680,386    $  2,479,894    $    704,186    $  1,838,286   $    610,407
=====================================================================================================
</TABLE>


ITEM 7.           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL   
                  CONDITION AND RESULTS OF OPERATIONS

         This  section and other parts of this  Report  contain  forward-looking
statements that involve risks and  uncertainties.  The Company's  actual results
may differ  significantly  from the  results  discussed  in the  forward-looking
statements.  Factors  that might cause such a  difference  include,  but are not
limited to, those discussed in the section entitled "Management's Discussion and
Analysis of Financial  Condition and Results of Operations -- Factors  Affecting
Operating  Results and Market  Price of Stock"  commencing  on page 15.  Certain
sections in this report  have been  identified  as  containing  forward  looking
statements.  The reader is cautioned that other sections and other sentences not
so identified may also contain forward looking information.

Results of Operations


         1996 Compared to 1995

         Revenues for the year ended  December 31, 1996 were  $1,000,114,  which
were $429,511 less than revenues of $1,429,625  for the prior year. The decrease
in the  Company's  revenues  in 1996  compared  to  1995  was  primarily  

                                       12
<PAGE>

due to  expiration  of the Air Force  Contract on June 1, 1996,  which  provided
$814,285 of revenue in 1995, and $242,279 of revenue in 1996.

         The revenue  recognized under the Air Force Contract  accounted for 24%
of the Company's revenue in 1996 and 57% in 1995.  Revenues  recognized from the
Company's  Phase I  development  effort  with  the  LandRay  Technologies,  Inc.
("LandRay")  joint  venture  accounted  for  $550,000,  or 55%, of the Company's
revenues in 1996.  During 1996,  the Company was unable to add  significant  new
contract revenues other than from the LandRay  Technologies joint venture,  and,
as a result,  although  operating  expenses  have been  reduced,  the  Company's
results of operations,  and financial  condition have been materially  adversely
affected.

         The net loss for the  year  ended  December  31,  1996 was  $3,788,299,
compared to a net loss of $2,562,230 in 1995.  After adjustment for dividends on
Preferred  Stock of  $195,453,  the net loss  applicable  to common  shares  was
$3,983,752  or $0.26 per share as  compared  with a net loss for the year  ended
December 31, 1995 of 2,751,425 or $0.25 per share.

         Sales and marketing  expenses were  $374,469 in 1996,  representing  an
decrease  of  $120,335,  or 24%,  compared  to sales and  marketing  expenses of
$494,804  in  1995.  Due  to  reduced  emphasis  government  contract  revenues,
personnel costs  associated  with such marketing  government  programs  declined
while marketing  expenditures  related to the Company's  industrial and standard
products  continued  in 1996 in an  attempt  to  establish  a  market  for  such
products.

         Research  and  development  costs  increased  by  $500,701  in  1996 to
$714,368 from $213,667 in 1995, a 334% increase,  primarily because of increased
technical  consulting  costs  due to the  Company's  redirection  to  industrial
sensing products and ground penetrating radar applications.

         General and  administrative  expenses  increased  by 13% or $140,880 in
1996 to $1,203,469 from $1,062,589 in 1995 primarily due to increased  personnel
costs.

         The  Company  had no  interest  expense in 1996  compared  to  interest
expense of  $18,126 in 1995,  which was due to  short-term  financing.  Interest
income increased by $57,469 or 155% to $94,552 in 1996 from $37,083 in 1995 as a
result  of  short  term  investment  of cash  reserves  which  increased  due to
completion of a private placement of Common Stock in March 1996.

         1996 was a period of continued  transition for the Company, as it moved
from research and  development  of laboratory  hardware to  application-specific
design and testing.  The Company continues contacts with a number of contractors
as well as Army, Air Force and Navy research  laboratories  regarding  potential
R&D  contracts.  One such  application  envisions  a  BASS(TM)  product  that is
appropriately  designed  and  packaged to  penetrate  foliage or earth.  An Army
Research  Laboratory  foliage  penetration  (FOPEN)  extension  to the Air Force
Contract for $984,000 was completed and expired on June 1, 1996.  The expiration
of this contract will have a material  adverse impact on future  revenues unless
other contracts are signed.

         1995 Compared to 1994

         Revenues for the year ended  December 31, 1995 were  $1,429,625,  which
were  $1,630,473  less than  revenues  of  $3,060,098  for the prior  year.  The
decrease  in the  Company's  revenues  in  1995  compared  to  1994  was  due to
expiration  of the  agreement  with The Boeing  Company on June 30, 1994,  which
provided $1,600,000 of revenue in 1994, and no additional revenue in 1995.

         The  Company  recognized  revenues  of  $814,285  under  the Air  Force
Contract in 1995,  versus  $1,233,829  for the  contract in 1994.  This  revenue
accounted for 57% of the Company's revenue in 1995 and 40% in 1994. During 1995,
the Company was unable to add  significant new contract  revenues and,  although
operating  expenses  have been  reduced,  the  Company's  revenues,  results  of
operations, and financial condition have been materially adversely affected.

         The net loss for the  year  ended  December  31,  1995 was  $2,562,230,
compared to a net loss of $1,112,507 in 1994.  After adjustment for dividends on
Preferred Stock of $189,195, the net loss applicable to common shares was

                                       13
<PAGE>

$2,751,425  or $0.25 per share as  compared  with a net loss for the year  ended
December 31, 1994 of $1,216,907 or $0.12 per share.

         Sales and marketing  expenses were  $494,804 in 1995,  representing  an
increase  of $64,693 or 15% over sales and  marketing  expenses  of  $430,111 in
1994. Due to reduced Boeing and Air Force revenues, marketing and advertising of
the Company's product  diversification efforts continued to expand in 1995 in an
attempt to obtain new military  contracts  and to sell  industrial  and standard
products.

         Research  and  development  costs  decreased  by  $118,945  in  1995 to
$213,667  from $332,612 in 1994, a 36%  decrease,  primarily  because of reduced
technical  costs due to the  completion of the transfer of the gallium  arsenide
semiconductor technology from the Ioffe Physical-Technical  Institute during the
year. Spending continued on new product development.

         General and administrative  expenses increased 9% or $85,048 in 1995 to
$1,062,589 from $977,541 in 1994, due primarily to increased personnel costs.

         The Company had no interest expense in 1996 compared to $18,126 in 1995
which arose from short-term financing.

         Liquidity and Capital Resources

         Working  capital at December  31,  1996 was  $212,998,  representing  a
decrease of $1,753,738  from  $1,966,736 at December 31, 1995. This decrease was
due primarily to net  operating  loss  $3,879,659  offset by the net proceeds of
$2,008,007  from the sale of Common  Stock in the first  quarter of 1996 and the
interest income generated from cash reserves.

         The Company  completed an offering of its Common Stock with proceeds to
the Company of $2,266,050 between January 1, 1996 and March 31, 1996.

         The Company's  growth  strategy  includes the successful  completion of
products  under  development,  development  of  new  product  applications,  and
development of marketing  strategies.  The Company continues its efforts to seek
new strategic partner(s) and/or debt or equity investors. There can, however, be
no assurances  that the Company will be able to successfully  obtain  additional
financing or strategic partners, or that if completed,  or that the terms of any
such financing or partnership would be favorable to the Company.

         Accounts  receivable  at December  31, 1996  declined by $221,531  over
year-end 1995, while unbilled accounts decreased by $19,176 over the same period
for a net  decrease of $240,707.  The large net decrease in accounts  receivable
reflects both decreases in sales of standard  products and decreases in contract
development  activity  during the last fiscal quarter of 1996, and the fact that
the LandRay Phase I development effort was prepaid in the late third quarter and
early fourth quarter 1996.

         Inventories   increased  by  $92,926  over  1995  year-end  levels  due
primarily to completion  of  sub-assemblies  for the  Company's  electro-optical
product line.

         Accounts  payable  decreased by $41,455 over 1995 year-end  levels as a
result the timing of vendor  payments  related to the Company's  annual  holiday
plant closure.

         Deferred  contract  revenues  increased  by $121,857 due to increase in
customer payments.

                                       14
<PAGE>

         The Company's  current cash position,  together with  anticipated  cash
flows from  operations  and new financing  through the issuance of Common Stock,
are expected by management to be sufficient to finance the Company's  operations
through  December  31,  1997.*  However,  the  actual  amount  of time  that the
Company's cash  resources last is dependent upon a variety of factors  including
the timing of obtaining new contracts, the timing of new financings, the success
of its current joint ventures and the  competition  with other  vendors.  If the
Company determines that it requires additional funds prior to December 31, 1997,
there can be no assurance that additional funds will be obtainable on reasonable
terms,  or at all. Any such failure could result in the Company  becoming unable
to meet its  obligations  as they come due. In  addition,  if the Company is not
successful in replacing the revenue and cash  generated by the Boeing  Agreement
and the Air Force Contract, the Company would continue to experience significant
operating  losses.  The  Company  does not  presently  have access to any credit
facilities.

         In December 1996 the Company entered into a $1.2 million  contract with
LandRay, a joint venture partially owned by the Company, as the first phase of a
program to develop GPR production prototype system to detect precious metals and
minerals  in  subterranean  locations.  Contract  terms call for the  Company to
develop and deliver an operational GPR sensor assembly, designated the "Seeker,"
as the first phase of a complete  portable  system that will identify and target
gold deposits behind mine walls. The goal is to detect gold at distances of more
than 10 feet beyond the mine tunnel wall surface. Recent propagation tests in an
operational gold mine produced  encouraging  results. The project is expected to
be completed  within calendar year 1997.* The funds payable to the Company under
this joint venture are payable on a milestone basis. Therefore, in the event the
Company is unable to achieve  the  milestones,  it will not  realize all of such
revenue. The failure to meet the required milestones under the LandRay agreement
would have a material adverse effect on the Company's  results of operations and
financial condition.  To date approximately  $450,000 has been raised by LandRay
to fund the $1.2 million contract. Of that amount, $250,000 has been paid to the
Company.  Receipt of the balance of the contract  revenue is also dependent upon
the ability of LandRay to raise the  balance of the funds  needed to fulfill the
contract obligations

         On  April  10,  1997 the  Company  closed  on a  private  placement  of
4,370,000  shares of its Common  Stock with gross  proceeds of  $1,092,500.  The
Company  agreed to pay a selling  agent a placement fee equal to 5% of the gross
proceeds of the  offering.  In  addition  the Company has agreed to issue to the
selling agent  warrants to purchase a number of shares of its Common Stock equal
to 5% of the total number of shares sold in the  offering.  The selling  agent's
warrants will be  exercisable at $0.25 per share (equal to the offering price of
the shares in the private  placement)  and will be  exercisable  for a period of
five years.  The Company has agreed to register  for resale the shares of Common
Stock  issued in the  private  placement,  as well as the shares  issuable  upon
exercise of the selling agent's warrants.

Factors Affecting Operating Results and Market Price of Stock

Power Spectra operates in a rapidly changing  environment that involves a number
of uncertainties, some of which are beyond the Company's control. In addition to
the  uncertainties  described  elsewhere  in this  report,  these  uncertainties
include:

History of Losses;  Accumulated  Deficit.  Since its inception,  the Company has
generally operated at a loss as government  contract  revenues,  which represent
most of the historical revenues of the Company, and other sources of income were
insufficient to cover general and  administrative,  research and development and
other  costs  incurred  by the  Company.  The  Company  recorded  net  losses of
($3,788,299),  ($2,562,230)  and  ($1,112,507)  for the years ended December 31,
1996,  December 31, 1995 and December  31, 1994,  respectively.  At December 31,
1996, the Company had an accumulated deficit of $15,062,956. The Company expects
that it will  continue to incur losses for the  foreseeable  future and does not
expect to become profitable until its contract  revenues increase  substantially
from current levels or the Company begins to receive  significant  product sales
and license and/or royalty  income.  There is no assurance that the Company will
achieve profitable operations in the foreseeable future, if at all.


- -----------------------
*This statement is a forward-looking  statement reflecting current expectations.
Actual future  performance  may differ  materially  from the  Company's  current
expectations.  The  reader is  advised to review  "Factors  Affecting  Operating
Results and Market Price of Stock" for a discussion of factors that could affect
future performance.

                                       15
<PAGE>

Product  Development and  Enhancements.  The development of high power switching
components and products, and the development of commercial applications for such
components and products,  is a complex engineering effort involving  significant
risk.  While the  Company  believes  it has  completed  development  of its core
technology,  significant additional development efforts must be made in order to
achieve  commercial  acceptance of its products.  There is no assurance that the
Company will succeed in this effort.

Complex  Manufacturing  Process.  The manufacture of  semiconductor-based  power
switching  devices is highly complex and sensitive to a wide variety of factors,
including the level of contaminants in the manufacturing environment, impurities
in the  materials  used and the  perrformance  of personnel and  equipment.  The
Company  has  periodically  experienced  yield  problems,  and  there  can be no
assurance  that these  problems  will not recur.  Should the Company  experience
protracted  production  delays  attributable to  manufacturing  complexity,  its
ability to deliver products would be materially affected.

Historical  Dependence  on Boeing  Relationship.  From October 1988 through July
1994, the Company  received  approximately  $23,500,000 in research funding from
Boeing  Electronics   Company  for  development  and  enhancement  of  the  BASS
technology and products.  In the years ended  December 31, 1994,  1993 and 1992,
the  Company  recognized  revenues of  $1,600,000,  $3,100,000  and  $3,700,000,
respectively,  in connection  with the Boeing Research  Agreement.  Although the
Company successfully completed several contracts throughout the duration of this
relationship,  during  1994,  Boeing  made the  strategic  decision to focus its
resources on its missile and aircraft business. As part of this decision, Boeing
reorganized  its  electronics  company and  consolidated it with its Defense and
Space Group.  The Company will have to look to  alternative  revenue  sources to
replace  the  revenues  generated  by the Boeing  relationship,  and there is no
assurance that the Company will successfully be able to do so in the short-term,
if at all.

Dependence on Boeing Equipment.  Boeing has granted the Company the right to use
its  equipment on a loaned basis for the Company's  purposes,  subject to annual
renewal. Additionally,  should the Company desire to acquire title and ownership
of the  loaned  equipment,  Boeing and the  Company  will  attempt to  negotiate
appropriate  consideration  in return for the  transfer of title and  ownership.
However, there is no assurance that an agreement satisfactory to the Company can
be reached. If Boeing chooses to no longer loan the equipment to the Company, as
it may do in its sole discretion,  and an acceptable agreement for the Company's
purchase of the equipment  cannot be attained,  the Company would be required to
find  alternative  sources of  equipment,  either for purchase or rent, or would
have to outsource its manufacturing while still in possession of a manufacturing
facility.  Any of these  circumstances could cause delays in the manufacture and
delivery of the Company's  products and could have a material  adverse impact on
the Company's results of operations.

Expiration of Air Force Contract.  The Company's contract with the United States
Air Force expired in June 1996, and such contract has been a significant  source
of revenues since it was awarded to the Company in 1990. With the termination of
the Air Force Contract,  it is necessary to find alternative sources of revenue,
and there is no assurance  that the Company will be successful in  accomplishing
this result.  If the Company is not successful in replacing the revenue and cash
generated by the Air Force  contract,  the Company,  will continue to experience
significant  operating losses and significant  negative cash flow.  Although the
Company has substantially reduced the size of its operations since expiration of
the Air Force  Contract,  there can be no assurance that the Company's  revenues
and proceeds from the equity  financings will be sufficient to allow the Company
to support its operating expenses.

Dependence on Government Contracts. A material portion of the Company's business
has  historically  resulted  from  contracts  with or for  government  agencies.
Although the Air Force  Contract  expired in 1996,  the Company  hopes to obtain
additional  government  contract work in the future.  Competition for government
development contracts is intense, and no assurance can be given that the Company
will be able to secure significant government contracts in the future. Moreover,
general political and economic conditions, which cannot be accurately predicted,
directly and indirectly  affect the quantity and allocation of  expenditures  by
governmental  agencies.  Therefore,  cutbacks in the federal budget could have a
material  adverse  impact on the  Company's  prospects of obtaining  significant
government development contracts.

Limitations on Protection of  Intellectual  Property.  The Company  believes its
ability to compete effectively with other companies may be materially  dependent
upon the proprietary  nature of its technologies.  The Company holds a number

                                       16

<PAGE>

of domestic and foreign patents covering various aspects of its BASS technology,
but  has  no  patents  or  patent  applications  pending  on  its  PSIristor(TM)
technology. There is no assurance that any additional patents will be granted to
the Company,  or that the Company's patents will provide  meaningful  protection
from competition.  Moreover,  there can be no assurance that any patents will be
upheld by a court  should  the  Company  seek to enforce  its rights  against an
infringer,  or that the Company will have sufficient  resources to prosecute its
patent and other intellectual property rights. Furthermore,  issuance of a valid
patent does not prevent other companies from independently developing technology
similar to the  Company's,  and there can be no  assurance  that any  particular
aspect of the Company's  technology  will not be found to infringe the claims of
other existing patents. In addition to patent protection,  the Company relies to
a significant extent on proprietary know-how and trade secrets particularly with
respect to its PSIristor(TM), which it considers a highly proprietary invention.
There can be no assurance,  however,  that others will not independently develop
superior  know-how or obtain  access to know-how  and trade  secrets used by the
Company that the Company now considers proprietary.

Future  Reliance  upon  Distributors.   Historically,  the  Company  has  relied
primarily  upon a  direct  sales  organization  and,  to a lesser  extent,  upon
manufacturers'  representatives to sell and distribute its commercial  products.
In order to materially increase revenues and achieve sustained profitability (of
which there is no  assurance)  as the Company  continues  to  commercialize  its
products,  it expects that it will be required to depend to a far greater degree
upon  distributors.  While  any  particular  distributor  may have an  extensive
distribution  network,   distributors   typically  represent  other  third-party
suppliers,  including  competitors of the Company, to whom it may devote greater
time,  effort and  attention.  There can be no  assurance  that the Company will
successfully establish the requisite distribution  relationships,  or that those
relationships will result in increased revenues.

Competition.  The markets for the Company's  products are highly competitive and
characterized by rapid technological  change,  sudden price fluctuations,  rapid
rates of product obsolescence, periodic shortages of materials and variations in
manufacturing  yields and efficiencies.  The Company's  competitive  position is
affected by all of these factors and by industry competition for effective sales
and  distribution  channels.  The Company's  potential and existing  competitors
include  major  ultrasonic  proximity  sensor  vendors.  Most  of the  Company's
competitors have substantially greater financial, technical, marketing and other
resources than does the Company.  Principal  competitive  factors include price,
performance and features.  The Company expects that its markets will become more
competitive  in the future,  and there is no assurance  that the Company will be
able to successfully compete in its selected markets.

Need to Successfully Launch and Fund New Ventures.  The Company believes it must
continue to seek and obtain other sources of revenue to continue operations.  As
part of this strategy,  the Company recently negotiated a joint venture,  called
PEAC  Airborne  Technologies,  Inc. and  completed  the formation of the LandRay
joint venture.  Both ventures will require additional funding in order to enable
the Company and its joint venture  partners to carry out their  respective plans
of operations.  PEAC is initially seeking $7,000,000 in equity financing. If the
offering is  successfully  completed,  the Company will receive a portion of the
net proceeds to develop its ultra-wideband  ground penetrating radar ("UWB GPR")
technologies.  Failure  of PEAC to raise  the  necessary  financing  will have a
material adverse impact on the Company's  revenues and cash flows.  Although the
Company has entered  into the LandRay  joint  venture,  its success is dependent
upon  demonstrating  the  feasibility of UWB GPR systems capable of locating and
identifying  minerals and oil and gas  formations.  There is no  assurance  that
LandRay and the Company will be  successful  in this regard.  Failure of LandRay
and the Company to adequately  demonstrate such feasibility will have a material
adverse  impact  on the  Company's  revenues  and cash  flows.  There  can be no
assurances  that the proposed PEAC joint venture will be  consummated,  that the
PEAC and  LandRay  joint  ventures  will be able to raise  adequate  funding  on
acceptable terms,  that the Company will be able to successfully  enter into any
additional  suitable  partnership  or joint  venture  arrangements  or that such
arrangements, when entered into, will prove to be beneficial for the Company and
its shareholders. There also can be no assurance that the proposed joint venture
agreements,  if consummated,  will generate  sufficient  revenues to replace the
revenues previously  generated by the Air Force contract.  Failure to succeed in
one or more strategic  partnerships or joint venture  relationships could have a
material adverse effect on the Company's plan of operations and results.

Volatility  of Stock  Price.  The  market  price of the  Common  Stock is highly
volatile.  Factors such as  variations in the  Company's  operating  results and
announcements of  technological  innovations or price reductions by the Company,
its competitors or providers of alternative products and processes may cause the
market price of the Common Stock to fluctuate  substantially.  In addition,  the
securities  markets  have  recently  experienced  substantial  price and  volume
fluctuations that have particularly  affected  technology-based  companies,  and
resulted in changes in the market  prices of the stocks of many  companies  that
have not been directly related to the operating  performance of those companies.

                                       17
<PAGE>

The price of the Company's  Common Stock is particularly  susceptible to extreme
fluctuation  because  of thin  trading  volume in the  Common  Stock and lack of
widely available pricing information.

No Assurance of Nasdaq Trading.  The Company's  Common Stock is currently traded
in dealer  transactions  on the  Electronic  Bulletin  Board  maintained  by the
National Quotation Bureau,  Inc., an over-the-counter  market in which liquidity
is typically limited and price volatility can be great. The Electronic  Bulletin
Board is generally considered to be a less efficient market because, among other
reasons,  it does not automatically  provide real time quotation.  The Company's
Common Stock is currently  not  eligible  for  quotation on The Nasdaq  SmallCap
Market,  and there is no assurance  that the Company  will meet the  eligibility
requirements for quotation on Nasdaq in the foreseeable future.


ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

         The  information  required by this Item is  incorporated  by  reference
herein from Item 14(a)(1).


ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND       
         FINANCIAL DISCLOSURE

         On January 19,1996,  the Company dismissed the accounting firm of Ernst
& Young LLP,  which had  previously  been engaged as the  Company's  independent
accountant to audit the Company's financial statements.  Ernst & Young's reports
on the Company's  financial  condition  for the fiscal years ended  December 31,
1993 and December 31, 1994 did not contain any adverse  opinion or disclaimer of
opinion,  and such  reports  were not  otherwise  modified  or  qualified  as to
uncertainty,  audit scope or accounting principles, except that Ernst & Youngs's
report on the Company's  financial  condition for the fiscal year ended December
31, 1994 contained a going concern qualification.  Furthermore, to the knowledge
of current management, during the 1994 and 1995 fiscal years, the Company had no
disagreements  with  Ernst & Young on any  matter of  accounting  principles  or
practices, financial statement disclosure, or auditing scope or procedure, which
disagreements,  if not resolved to the satisfaction of Ernst & Young, would have
caused  it to make  reference  to the  subject  matter of the  disagreements  in
connection  with its  report(s).  The  decision  to  dismiss  Ernst & Young  was
approved by the Company's Board of Directors.

         On January 19, 1996 the Company  retained the accounting  firm of Grant
Thornton  LLP as its  principal  accountant  to audit  the  Company's  financial
statements in the future.

                                       18
<PAGE>

                                    PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

Directors of the Registrant
<TABLE>

         The Board of Directors,  as presently  constituted,  has seven members.
The  term  of  each  director   continues  until  the  next  Annual  Meeting  of
Shareholders. The names of the directors and certain information about them, are
set forth below.
<CAPTION>
   Name of Director          Age*            Principal Occupation          Director Since
- ------------------------     ----    ----------------------------------    --------------
<S>                          <C>     <C>                                   <C> 
Michael I. Gamble            61      Vice President of Defense Contract        April 1991
                                     Firm / Consultant
James A. Glaze               59      Vice President of Industry                 June 1995
                                     Association
John Hewitt, Jr.             68      Investment Advisor                       August 1989
Gene J. Kennedy              55      Consultant / Counselor                 November 1990
John W. Pauly                74      General, U.S. Air Force, Retired            May 1990
Gordon H. Smith              68      Chairman  of  the Board of the          January 1995
                                     Company, President and Chief
                                     Executive of the Company, Rear
                                     Admiral, U.S. Navy, Retired
Richard A. Williams          72      Consultant                              October 1987
<FN>
- ------------------------
*        As of March 31, 1997
</FN>
</TABLE>

         Except as set forth below, each of the nominees has been engaged in his
principal  occupation  set forth above during the past five years.  There are no
family relationships between any director or executive officer of the Company.

         Mr.  Gamble  joined the Company as Director in April 1991 and served as
the Company's President and Chief Executive Officer from April 1991 to May 1996.
From April 1991 until March 1993 he served as the Company's Secretary,  and from
April 1991 to November 1993 as he also served as Chief Financial Officer.  Prior
to joining the  Company,  Mr.  Gamble was with The Boeing  Company for 24 years,
where he was responsible for concept development, preliminary design and initial
market  assessment  for advanced  products and systems.  Since October 1996, Mr.
Gamble  has served as Vice  President,  Business  Development  and  Planning  of
ARGOSystems, Inc., a subsidiary of The Boeing Company.

         Mr.  Glaze  joined the Board of  Directors  in June 1995.  Since August
1993,  Mr. Glaze has served as a Vice  President of the  Semiconductor  Industry
Association.  Prior to August 1993, Mr. Glaze was President of Jmar  Technology,
Inc., a laser technology developer.

         Mr.  Hewitt  joined the Board of  Directors  in August 1989 and was its
Chairman from June 1990 to June 1995. Mr. Hewitt founded John Hewitt  Investment
Counsel, a financial counseling company, in 1962 and has served as its President
for more than five years.  He was a founding  investor in Microwave  Electronics
Corporation which later became a division of Teledyne, Inc.

         Mr. Kennedy has been in private practice related to organizational  and
individual  counseling and  psychotherapy  since 1974. In 1981 he was a founding
investor and Vice  President of Beepers  Northwest,  Inc., a pager company which
was later purchased by McCaw Cellular Communications.

         General  Pauly served as the Chairman of the Board and Chief  Executive
Officer of Systems Control Technology, Inc., a software company, from 1982 until
his retirement in 1994.  General Pauly is a consultant to the Army Science Board
and was a  participant  in the  National  Research  Council  Study on  strategic
technologies in the Army.

                                       19
<PAGE>

         Admiral  Smith joined the Board of Directors in January  1995,  and has
served as President and Chief  Executive  Officer of the Company since May 1996.
Admiral  Smith served as an officer of Lockheed  Missiles and Space Co., a space
systems  manufacturer,  from  1988 to 1990.  From  1990 to 1994,  he  served  as
President and Chief Executive Officer of Sargent Fletcher Company.  From October
1994 to November  1995,  he served as President and Chief  Executive  Officer of
Sargent Fletcher, Inc., a military aircraft component manufacturer.

         Mr.  Williams  served as a technical  staff manager of Ford Aerospace &
Communications  Corp., a manufacturer  of satellites,  from 1965 to 1982.  Since
1982,  following his  retirement,  he has been a consultant for Ford  Aerospace,
Loral Corp., and other high technology firms.

Board Meeting and Committees

         The Board of Directors  of the Company held a total of eleven  meetings
during the fiscal year ended December 31, 1996 (the "Last Fiscal Year").  During
the Last Fiscal Year,  no director  attended  fewer than 75% of the aggregate of
all meetings of the Board of Directors  and  committees  on which he served,  if
any.

         The  Board  has  established  an  Audit  Committee  and a  Compensation
Committee.  The Audit Committee consists of Messrs. Hewitt, Glaze, and Williams.
The Audit Committee recommends  engagement of the Company's independent auditors
and approves the services  performed by such  auditors and reviews and evaluates
the  Company's  accounting  policies and its systems of internal  controls.  The
Compensation Committee is comprised of Messrs. Pauly, Gamble, Kennedy and Smith.
The Compensation Committee recommends to the Board of Directors the compensation
of the Company's Chief Executive Officer and determines the compensation  levels
of the  Company's  other  officers.  The Audit  Committee  and the  Compensation
Committee held two meetings and six meetings in 1996, respectively.  The Company
does  not  have  a  Nominating  Committee  or  a  committee  performing  similar
functions.

Director Compensation

         As compensation for their services as directors, non-employee directors
receive shares of the Company's  Common Stock under the 1991 Director Stock Plan
described  below and options to  purchase  Common  Stock under the the  Director
Option Plan, also described below. See "Employee and Director Benefit Plans."

         During 1996,  10,522  shares of Common Stock were issued to each of the
following  directors pursuant to the 1991 Director Stock Plan: John Hewitt, Jr.,
Richard A. Williams,  John W. Pauly,  Gene J. Kennedy,  and James A. Glaze.  Mr.
Gamble  and Mr.  Smith  received  2,890  and  7,632  respectively,  and Drury J.
Gallagher,   a  former   director  of  the  Company,   received   9,007  shares.
Additionally,  each director is reimbursed for reasonable out-of-pocket expenses
incurred in attending meetings of the Board of Directors. Before being appointed
President and Chief Executive  Officer,  Admiral Smith was paid $1,500 per month
as non-executive  Chairman of the Board. He received $9,000 for such services in
the Last Fiscal Year. In addition, heads of committees of the Board of Directors
are paid $250 per quarter as compensation for serving in such positions.

         Non-qualified  stock options to purchase  10,000 shares of Common Stock
were  issued to each of the  non-employee  directors  pursuant  to the  Director
Option Plan in March 1996. See "Employee and Director Benefit Plans" below.

Executive Officers of the Registrant

         The  current  executive  officers  of the  Company and their ages as of
March 31, 1997 are as follows:

    Name              Age              Position
- --------------------------------------------------------------------------------
Gordon H. Smith       68               Chairman  of  the  Board,   President,
                                       Chief Executive Officer
Charles C. Byer       52               Executive   Vice   President,    Chief
                                       Operating Officer
Edward J. Lamb        49               Chief Financial Officer, Secretary

         All  executive  officers  serve  at  the  discretion  of the  Board  of
Directors  and  there  are no  family  relationships  between  any  director  or
executive officer.

                                       20
<PAGE>

         Mr. Byer joined the Company as Executive Vice President in May 1995 and
has served as Chief  Operating  Officer  since May 1996.  Prior to joining Power
Spectra, he was with Beta Phase, Inc., a electrical connector manufacturer, from
August 1991 to January 1995, serving as its President.  From June 1990 to August
1991, he was founder and President of Emerald Pacific  Seafood,  a fresh seafood
provider. Mr. Byer served in a variety of positions with E. I. DuPont Denemours,
Inc., a deversified manufacturing company, from 1973 to 1990.

         Mr. Lamb joined the Company as  Controller in April 1992 and has served
as Chief  Financial  Officer since October 1993 and as Secretary  since November
1994.  Prior to joining Power  Spectra,  he was Division  Controller for Quantic
Industries,  Inc., a munitions  manufacturer  from August 1990 to February 1992,
and served as Finance  Manager for  CAE-Link  Corporation,  a flight  simulation
systems supplier from June 1988 to August 1990.

         See "Directors of the Registrant" above, for background  information on
Mr. Smith.

ITEM 11. EXECUTIVE COMPENSATION
<TABLE>

The following table sets forth certain information  regarding  compensation paid
by the Company in the fiscal  year ended  December  31,  1996 (the "Last  Fiscal
Year") to its Chief  Executive  Officer and the other three  executive  officers
(the "Named  Executive  Officers")  whose total  compensation in the Last Fiscal
Year exceeded $100,000.

                                             Summary Compensation Table
<CAPTION>

                                                                    Annual                    Long-Term 
                                                                 Compensation                Compensation
                                                               -----------------       ------------------------
                                                                                          Stock
                                                                                         Option      Stock
                                                                                         Grants       Grants
                                                                     Cash                 (# of      (# of
        Name                Capacity Served           Year       Compensation            Shares)     Shares)
- --------------------- ---------------------------- ----------- -----------------       ------------------------
<S>                    <C>                            <C>          <C>                      <C>          <C>  
  Gordon H. Smith      Chairman, Chief Executive      1996         $104,457(1)              50,000       7,632
                       Officer, President             1995         $  9,000                 10,000           0
  Michael I. Gamble    Former Chief Executive         1996         $235,953(2)                   0       2,890
                       Officer, President             1995         $163,320                  8,535           0
                                                      1994         $165,000                  5,000           0
  Charles C. Byer      Executive Vice President,      1996         $137,893                      0           0
                       Chief Operating Officer        1995         $ 75,206                 80,000           0
  Edward J. Lamb       Chief Financial Officer,       1996         $107,072                      0           0
                       Secretary                      1995         $ 94,630                  4,764           0
                                                      1994         $ 88,087                  5,000           0
<FN>

(1) Mr. Smith's cash compensation  included $95,457 in salary and $9,000 paid to
him as  non-executive  Chairman in 1996. Mr. Smith joined the Board of Directors
in January 1995.
(2) Mr.  Gamble's  1996 cash  compensation  included  $103,217  in salary  and a
$105,000 lump sum payment,  together with $27,736 for  consulting  services paid
under a  separation  agreement.  The  separation  agreement  requires  a minimum
payment approximating $27,000 in 1997.
</FN>
</TABLE>
                                       21
<PAGE>

<TABLE>

The  following  table sets forth  certain  information  regarding  stock options
granted to Mr. Smith,  the only Named Executive  Officer who received options in
the Last Fiscal Year.
<CAPTION>

                                          Option Grants in Last Fiscal Year

                               Number of Securities      Percent of Total Options
                                Underlying Options         Granted to Employees/      Exercise Price      Expiration 
            Name                    Granted (#)          Directors in Fiscal Year         ($/Sh)             Date
            ----                    -----------          ------------------------         ------             ----
      <S>                            <C>                           <C>                    <C>              <C>   
      Gordon H. Smith                40,000(1)                     21.0%                  $1.2500          5/2006
      Gordon H. Smith                10,000(2)                      5.3%                  $1.8500          3/2006
<FN>
- -----------------------------
(1)  Incentive  Stock option  granted  under 1986 Stock Option Plan.  The Option
vests over a period of five years.  The exercise price of the Option equaled the
fair market value of the underlying  securities as of the date of the grant. 
(2) Nonstatuatory option granted under the 1992 Director Option plan. The Option
is  immediately  exercisable.  The exercise price of the Option equaled the fair
market value of the underlying securities as of the date of the grant.
</FN>
</TABLE>
<TABLE>

The following table sets forth the value of all  unexercised  stock options held
on December 31, 1996 by the Named Executive Officers. No Named Executive Officer
exercised stock options during the Last Fiscal Year.
<CAPTION>

                          Fiscal Year-End Option Values

                         Number of Securities Underlying
                         Unexercised Options at Fiscal Year         Value of Unexercised In-The-
                                   End (#)                        Money  Options at Fiscal Year End 
      Name               (Exercisable/Unexercisable)              (#)(Exercisable/Unexercisable)
      ----               ---------------------------              ------------------------------
<S>                            <C>                                       <C> 
 Gordon H. Smith               40,000/20,000                             0/0 (1)
 Michael I. Gamble              133,535/0                                0/0 (1)
 Charles C. Byer               24,000/56,000                             0/0 (1)
 Edward J. Lamb                44,167/10,597                             0/0 (1)
<FN>
- ----------------------------------------
(1)  Based on the  over-the-counter  bulletin  board  closing  bid  price of the
Company's  Common  Stock price as of  December  31,  1996,  which was $0.531 per
share.  The  exercise  prices  of  Messrs.   Smith,  Gamble,  Byer,  and  Lamb's
exercisable and  unexercisable  options granted under the 1986 Stock Option Plan
and 1992 Director  Option Plan were greater than the closing bid.  Consequently,
all Named Executive Officers' options were not in-the-money.
</FN>
</TABLE>

Employee and Director Benefit Plans

         The  following  is a brief  summary of plans in effect  during the Last
Fiscal  Year under  which  officers,  directors  and  employees  of the  Company
received benefits.

         1986 Stock Option Plan. The Company's 1986 Stock Option Plan (the "1986
Plan")  was  adopted  by the  Company's  Board of  Directors  in March  1987 and
approved by the Company's  shareholders in October 1987. A total of 1,690,000 of
Common Stock was reserved for issuance under the Option Plan.

         The 1986 Plan is administered by the Board of Directors,  which has the
authority to select the  employees  and  consultants  of the Company  (including
officers  and  employee  directors)  who are to  receive  option  grants  and to
determine  whether  each  option  granted  is to be an  incentive  stock  option
satisfying  the  requirements  of Section 422A of the  Internal  Revenue Code of
1986, as amended,  or a nonstatuatory  stock option.  The exercise price of each
incentive  stock  option  granted  may not be less than 100% of the fair  market
value of the  Company's  Common  Stock on the date of the grant and the exercise
price of a  nonstatuatory  option  may not be less  than 85% of the fair  market
value of the Company's Common Stock on the date of the grant. No option may have
a term in  excess  of ten years  measured  from the date of grant.  The Board of
Directors  selects  the  optionees,  the  number of shares to be subject to each
option and the vesting period of options  granted under the 1986 Plan. In making
such  determination,  the Board of Directors  takes into account the dutites and
responsibilities of the employee or consultant, as the case may be, the value of
the optionee's  services,  his or her present and potential  contribution to the
success of the Company  and  anticipated  number of years of future  service and
other relevant factors.

         The 1986 Plan  expired as to future  grants  upon  adoption of the 1996
Stock Plan in June 1996.



         1996 Stock  Plan.  The Board of  Directors  adopted the 1996 Stock Plan
(the  "1996  Plan") in April  1996 and the Plan was  approved  by the  Company's
shareholders  in June 1996.  A total of  1,500,000  shares of Common  Stock were
reserved for issuance upon  exercise of options  granted under the 1996 Plan, in
addition to the shares which  remained  available  for  issuance  under the 1986
Plan.  The plan provides for grants in a manner  similar to the 1986 Plan and is
not a deferred  compensation  plan under  Section  401(a) of the Code and is not
subject to the  provisions of ERISA.  In accordance  with Section  162(m) of the
Code, the 1996 Plan imposes a limitation on grants to any optionee in any fiscal
year so that the aggregate grants in any one year to any optionee may not exceed
300,000  share per fiscal year,  provided,  however,  that new hires may receive
additional  option  grants for no more than 300,000  shares in the 

                                       22
<PAGE>

year they are hired. In addition,  there is a limit of $100,000 on the aggregate
fair market value of shares  subject to all  Incentive  Stock  Options which are
exercisable for the first time in any calendar year by an employee.  As of March
31, 1996, options to purchase 9,500 shares had been granted under the 1996 Plan,
and 1,614,176 shares were available for future grants.

         The 1996 Plan  provides  that,  in the event of a merger of the Company
with or into  another  corporation,  the sale of more than fifty perent (50%) of
the Company's voing stock, a sale of  substantially  all of the Company's assets
or a liquidation  or  dissolution  of the Company  ("Transfer of Control"),  the
acquiring  or  successor  corporation  may  assume or  substitute  substantially
equivalent  awards for the  awards  outstanding.  To the  extent  awards are not
assumed or  substituted  for,  they will vest in full prior to the  Transfer  of
Control.  To the extent options are not assumed,  substituted  for, or exercised
prior to the Transfer of Control, they will terminate.

         1991 Director  Stock Plan.  The Company's 1991 Director Stock Plan (the
"Stock  Plan")  was  adopted  in  March  1991  and  approved  by  the  Company's
shareholders  in June 1991.  The Company  initially  reserved  100,000 shares of
Common  Stock for  issuance  under the Stock  Plan.  The  shareholders  approved
increases of 150,000 shares and 200,000 shares in the number of shares available
for  issuance  under the Stock  Plan in June 1993 and June  1995,  respectively.
Under  the  Stock  Plan,  each  director  who is not an  employee  or  full-time
consultant of the Company (an "Outside  Director")  receives each quarter $3,125
in shares of Common  Stock of the  Company  (based on a price per share equal to
the fair market value of the Common Stock on the last day of such quarter).  The
Company currently has six Outside Directors.

         1992  Director  Option Plan.  The  Company's  Director  Option Plan was
adopted  in  October  1992  by the  Board  of  Directors,  and  approved  by the
shareholders  in June,  1993. An aggregate of 230,000 shares of Common Stock was
reserved for issuance under the 1992 Director Option Plan (the "Director  Option
Plan").   Under  the  1992  Director  Option  Plan  each  Outside   Director  is
automatically granted an option to purchase 10,000 shares each year on the third
trading day following the public announcement of the Company's financial results
for th preceding fiscal year. Only Outside Directors are eligible to participate
in the Director  Option Plan. The  shareholders  approved an increase of 170,000
shares in the number of share  available for issuance under the Director  Option
Plan in June 1996. Each Outside Director was automatically granted an option for
10,000 shares in March 1996.  Options granted under the Director Option Plan are
nonstatutory  options,  and do not  qualify as  "incentive  stock  options,"  as
defined in Section 422 of the Internal Revenue Code of 1986, as amended.

ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS 
          AND MANAGEMENT

Security Ownership of Certain Persons
<TABLE>

         The following table sets forth the beneficial ownership of Common Stock
of the  Company  as of  March  31,  1997 by (1)  each  director,  (2) the  Named
Executive Officers,  (3) all directors and executive officers as a group and (4)
each person known by the Company to be the  beneficial  owner of more than 5% of
the Company's Common Stock.
<CAPTION>
                                           Shares of Common Stock Beneficially Owned (1)
                                         -----------------------------------------------
                 Name                      No. of Shares              Percent of Total
                 ----                      -------------              ----------------
<S>                                           <C>                          <C>
Entities   Affiliated   with  Travelers
Group, Inc.
388 Greenwich St.                              3,414,090                   20.3%
New York, NY 10013 (2)
Charles O. Byer (3)                               28,000                     *
Michael I. Gamble (4)                            154,810                     *
James A. Glaze (5)                                25,348                     *
John Hewitt, Jr. (6)                             151,067                     *
Gene J. Kennedy (7)                              478,825                    3.0%
Edward J. Lamb (8)                                49,643                     *
John W. Pauly (6)                                171,531                    1.1%
Gordon H. Smith (9)                               88,916                     *
Richard A. Williams (10)                         156,335                     *
All directors  and  executive  officers
as a group (9 persons) (11)                    1,304,475                    7.8%
<FN>
- ----------
*        Represents  less  than 1% of the  16,161,009  shares  of  Common  Stock
         outstanding on March 31, 1997.

                                       23
<PAGE>

(1)      Except as  indicated  below,  the  persons  named in the table,  to the
         Company's knowledge, have sole voting and investment power with respect
         to all  shares of Common  Stock  shown as  beneficially  owned by them,
         subject to community property laws where applicable.
(2)      As reported in  Amendment  No. 2 to Schedule  13G/A filed by  Travelers
         Group,  Inc. on January 30, 1997.  Includes shares held by Smith Barney
         Holdings,  Inc. and Smith Barney  Mutual Funds  Management,  Inc.,  and
         includes 681,818 shares issuable upon exercise of warrants  exercisable
         within 60 days of March 31, 1997.
(3)      Includes  28,000 shares issuable  upon  exercise of options exercisable
         within 60 days of March 31, 1997.
(4)      Includes  133,535 shares issuable upon exercise of options  exercisable
         within  60 days of  March  31,  1997 and  2,500  shares  issuable  upon
         exercise of warrants exercisable within 60 days of March 31, 1997.
(5)      Includes  10,000 shares  issuable upon exercise of options  exercisable
         within 60 days of March 31, 1997.
(6)      Includes  40,000 shares  issuable upon exercise of options  exercisable
         within 60 days of March 31, 1997.
(7)      Includes  40,000 shares  issuable upon exercise of options  exercisable
         within  60 days of  March  31,  1997 and  5,000  shares  issuable  upon
         exercise of warrants exercisable within 60 days of March 31, 1997.
(8)      Includes  49,643 shares  issuable upon exercise of options  exercisable
         within 60 days of March 31, 1997.
(9)      Includes  60,000 shares  issuable upon exercise of options  exercisable
         within  60 days of  March  31,  1997 and  2,500  shares  issuable  upon
         exercise of warrants exercisable within 60 days of March 31, 1997.
(10)     Includes  55,000 shares  issuable upon exercise of options  exercisable
         within 60 days of March 31, 1997.
(11)     Includes  477,356 shares issuable upon exercise of options  exercisable
         within 60 days of March 31, 1997 held by seven  directors,  one of whom
         is also an officer,  10,000 shares issuable to three directors,  one of
         whom is an officer,  upon  exercise of warrants  exercisable  within 60
         days of March 31, 1997,  and 77,643  shares  issuable  upon exercise of
         options  exercisable  within 60 days of March 31, 1997 by two  officers
         who are not directors.
</FN>
</TABLE>
<TABLE>

         The  following  table sets forth the  beneficial  ownership of Series A
Preferred Stock and Series B Preferred Stock of the Company as of March 31, 1997
by (1) each director and (2) each Named Executive Officer, (3) each holder of 5%
or more of the Series A Preferred  Stock and Series B Preferred  Stock,  and (4)
all directors and executive officers as a group.
<CAPTION>

                                           Shares of Common Stock Beneficially Owned (1)
                                         -----------------------------------------------
                 Name                      No. of Shares             Percent of Total(2)
                 ----                      -------------             -------------------
<S>                                             <C>                        <C> 
Gene J. Kennedy                                 89                         4.8%
Michael I. Gamble (3)                           10                          *
John Hewitt, Jr.                                10                          *
Richard A. Williams                             10                          *
Edward J. Lamb                                  10                          *
First  Interstate  Bank,  Custodian for        500                        19.4%
the benefit of James Ermet Haldan Trust
P.O. Box 30100                         
Reno, NV 89560 
David J. Holmgren (4)                          308                        18.7%
30 Birch Lane                                  
Coscob, CT 06807
Estate of John C. Cahill (5)                   185                        11.2%
284 President Avenue   
Providence, RI 02906                           
All directors  and  executive  officers
as a group (9 persons)                         129                         6.8%
<FN>
- ----------
*        Represents  less  than 1% of the total  number  of shares of  Preferred
         Stock outstanding.
(1)      Except as noted below, the persons named in the table, to the Company's
         knowledge,  have sole voting and  investment  power with respect to all
         shares of Preferred Stock shown as beneficially  owned by them, subject
         to community property laws where applicable
(2)      Represents the percentage  obtained by dividing the number of shares of
         Common Stock into which shares of Series A Preferred Stock and Series B
         Preferred  Stock held by the  beneficial  owner are  convertible by the
         number of shares of Common Stock into which all  outstanding  Shares of
         Series A Preferred Stock and Series B Preferred Stock are convertible.
(3)      Represents shares owned jointly by Mr. Gamble and his spouse, Charlotte
         Anne Gamble.
(4)      Includes 14 shares owned jointly by Mr. Holmgren and his spouse,  Karen
         C. Holmgren.
(5)      Does not include 5 shares held by each of Ann Catherine Cahill and Mary
         Elizabeth Cahill, Mr. Cahill's daughters.
</FN>
</TABLE>
                                       24
<PAGE>

Compliance with Section 16(a) of the Exchange Act

         Based  solely on its review of the copies of Forms 3,4,  and 5 received
by the Company, or written  representations  from certain reporting persons that
no Forms 5 were required for such persons, the Company believes that, during the
fiscal year ended December 31, 1996, all filing requirements under Section 16(a)
of the  Securities  Exchange Act  applicable to its officers,  directors and 10%
shareholders were complied with.

ITEM 13. CERTAIN  RELATIONSHIPS AND RELATED TRANSACTIONS

Sale of Common Stock

         Between  August  1995 and March  1996,  the  Company  sold units of its
securities  ("Units")  with  an  aggregate  value  of  $5,960,000  in a  private
placement  priced  at $1.10  per  Unit  (the  "Private  Placement").  Each  Unit
consisted  of one share of Common Stock of the Company and a warrant to purchase
one-half of one share of Common  Stock.  The Company  issues  Common  Stock,  or
securities  convertible  into Common  Stock,  at a price per share less than the
offering  price of the Units (the  "Subsequent  Offering  Price"),  the warrants
issued  pursuant to the Private  Placement  become  exercisable as to 50% of the
underlying  shares at the Subsequent  Offering  Price.  The warrants will become
exercisable  as to the remainder of the  underlying  shares at the Unit offering
price if the Company's  Common Stock is not listed on the Nasdaq National Market
or the Nasdaq  Small Cap Market  within two years of the  issuance  date of such
warrants.  The Company also agreed to register the Common Stock issued  pursuant
to the Private  Placement with the Securities  and Exchange  Commission,  and to
indemnify  the holders of such Common  Stock under  certain  circumstances.  For
further  information,  see Note 5 to the financial statements included with this
Report.

         Among the entities  purchasing Units were entities  associated with the
Travelers' Group,  Inc., a holder of more than 10% of the Company's  outstanding
shares of Common Stock,  which purchased  2,727,272 Units.  Michael I. Gamble, a
director  and former  President  and Chief  Executive  Officer  of the  Company,
purchased 10,000 Units and Gene J. Kennedy, a director of the Company, purchased
20,000 Units.

Severance Agreement with Executive Officer

         On June 1, 1996, the Company entered into an employment termination and
mutual release agreement with Michael I. Gamble,  its former President and Chief
Executive Officer,  and a director of the Company.  The agreement provides for a
one-time  payment of $105,000 to Mr. Gamble.  The Company also agreed to pay Mr.
Gamble's medical insurance  premiums through December 31, 1996, and certain fees
for outplacement services and moving expenses.  The terms of options to purchase
Common Stock held by Mr. Gamble were extended to May 31, 1998.

         In addition, the Company and Mr. Gamble agreed that Mr. Gamble would be
available  to provide  consulting  services  to the  Company for 13 days in each
two-month  period  through May 31, 1997.  The Company  agreed to pay Mr.  Gamble
$692.32  for each day he makes  himself  available  to  provide  such  services,
whether or not the Company uses his  services.  For the period from June 1, 1997
to May 31, 1998, Mr. Gamble will provide  consulting  services to the Company as
mutually agreed by the parties from time to time.

         Mr. Gamble agreed to waive any other rights or claims he may have based
on his employment relationship with the Company.

                                       25
<PAGE>

                                     PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND                      Page
         REPORTS ON FORM 8-K                                              ------

a)    1. Financial Statements
         The following documents are filed as part of this report

         Reports of Independent Auditors                                   F-1

         Balance Sheets
            As of December 31, 1996 and 1995                               F-3

         Statements of Operations
            For the years ended December 31, 1996, 1995, and 1994          F-4

         Statement of Stockholders' Equity
            For the years ended December 31, 1996, 1995, and 1994          F-5

         Statements of Cash Flows
            For the years ended December 31, 1996, 1995, and 1994          F-6

         Notes to Financial Statements                                     F-7

      2. Financial Statement Schedules

         All  schedules  are  omitted  because  they are not  required,  are not
         applicable,  or the information is included in the financial statements
         or notes thereto.

      3. Exhibits

         3.0(1)     Amended  and  Restated  Articles  of  Incorporation  of  the
                    Registrant, as filed with the California Secretary of State,
                    November 28, 1988.

         3.1(9)     Certificate of Amendment of Amended and Restated Articles of
                    Incorporation   of  the   Registrant,   as  filed  with  the
                    California Secretary of State, August 30, 1993.

         3.2(9)     Certificate  of  Determination  of  Preferences  of Series A
                    Preferred  Stock  of  the  Registrant,  as  filed  with  the
                    California Secretary of State, August 30, 1993.

         3.3(7)     Certificate  of  Determination  of  Preferences  of Series B
                    Preferred  Stock  of the  Registrant  , as  filed  with  the
                    California Secretary of State, January 4, 1995.

         3.4        Certificate of Amendment of Amended and Restated Articles of
                    Incorporation   of  the   Registrant,   as  filed  with  the
                    California Secretary of State, April 4, 1997.

         3.5(3)     By-Laws of Registrant.

         10.0(2)(6) 1986  Incentive  Stock  Option  Plan as amended and forms of
                    incentive and non-statutory stock option agreements.

         10.1(4)    Research   Agreement  between   Registrant  and  The  Boeing
                    Company.

         10.2(3)    Form  of  Indemnification  Agreement,  entered  into  by the
                    Registrant   with  each  of  its   executive   officers  and
                    directors.

                                       26
<PAGE>

         10.3(3)(6) 1989 Director Incentive Stock Plan.

         10.4(6)(8) 1991 Director Stock Plan.

         10.5(5)(6) Director Option Plan.

         10.6(9)    Power Spectra,  Inc. Series A Securities Purchase Agreement,
                    dated April 7, 1993.

         10.7(7)    Power Spectra,  Inc. Series B Securities Purchase Agreement,
                    dated January 13, 1995.

         10.8       Ground Pentrating Radar Development Agreement dated June 19,
                    1996,   between  the  Registrant  and  European   Industries
                    Associates.

         10.9(10)   GPR Systems  Development,  Sale and License  Agreement dated
                    December  17,  1996  between  the   Registrant  and  LandRay
                    Technologies, Inc.

         10.10      Letter Agreement amending GPR Systems Development,  Sale and
                    License   Agreement   dated  March  13,  1997   between  the
                    Registrant and LandRay Technologies, Inc.

         10.11      Registration Rights Agreement,  dated April 11, 1997 between
                    the Registrant and certain investors.

         11.1       Computation of Loss per Share.

         23.1       Consent of Grant Thornton LLP.

         23.2       Consent of Ernst & Young LLP.

         27.1       Financial Data Schedule.

         ----------------------

         (1)   Incorporated by reference from the Registrant's  Annual Report on
               Form 10-K for the fiscal year ended December 31, 1988.

         (2)   Incorporated  by  reference  from the  Registrant's  Registration
               Statement on Form S-8 filed September 1, 1989 (No. 33-30855).

         (3)   Incorporated by reference from the Registrant's  Annual Report on
               Form 10-K for the fiscal year ended December 31, 1989.

         (4)   Incorporated by reference from the Registrant's  Annual Report on
               Form  10-K  for  the  fiscal  year  ended   December   31,  1988.
               Confidential treatment granted as to portions of this agreement.

         (5)   Incorporated  by  reference  from the  Registrant's  Registration
               Statement on Form S-8 filed on January 21, 1993 (No. 33-57280).

         (6)   Managerial  contract or compensatory plan or arrangement in which
               the Company's directors or officers participate.

         (7)   Incorporated by reference from the Registrant's  Annual Report on
               Form 10-K for the fiscal year ended December 31, 1994.

         (8)   Incorporated  by  reference  from the  Registrant's  Registration
               Statement on Form S-8 filed on December 26, 1996 (No. 33-18837).

         (9)   Incorporated by reference from the Registrant's  Annual Report on
               Form 10-K for the fiscal year ended December 31, 1993.

         (10)  Confidential  treatment has been requested as to portions of this
               Agreement.

b)       Reports on Form 8-K

         None.

                                       27
<PAGE>

c)       Exhibits

         See response to Item 14 (a) 3.

d)       Financial Statement Schedules

         See response to Item 14 (a) 2.



                                       28
<PAGE>

               Report of Independent Certified Public Accountants
               --------------------------------------------------


Board of Directors and Stockholders
Power Spectra, Inc.

We have  audited  the  accompanying  balance  sheets of Power  Spectra,  Inc. (a
California  corporation)  as of  December  31,  1996 and 1995,  and the  related
statements of  operations,  stockholders'  equity,  and cash flows for the years
then ended.  These financial  statements are the responsibility of the Company's
management.  Our  responsibility  is to express  an  opinion on these  financial
statements based on our audit.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material  respects,  the  financial  position of Power  Spectra,  Inc. as of
December 31, 1996 and 1995, and the results of its operations and cash flows for
the  years  then  ended  in  conformity  with  generally   accepted   accounting
principles.


GRANT THORNTON LLP


San Jose, California
February 21, 1997 (except for
Note 10 as to which the date
is April 10, 1997)


                                       F-1

<PAGE>

                         Report of Independent Auditors


Board of Directors and Stockholders
Power Spectra, Inc.


We have audited the accompanying statements of operations, stockholders' equity,
and cash flows of Power  Spectra,  Inc.,  for the year ended  December 31, 1994.
These financial  statements are the responsibility of the Company's  management.
Our responsibility is to express an opinion on these financial  statements based
on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards  require that we plan and perform the audit to obtain reasonable
assurance   about  whether  the  financial   statements  are  free  of  material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all  material  respects,  the results of  operations,  changes in  stockholders'
equity and cash flows of Power  Spectra,  Inc.,  for the year ended December 31,
1994, in conformity with generally accepted accounting principles.

The Company's recurring losses from operations raise substantial doubt about its
ability to continue as a going concern.  The Company's cash position at December
31, 1994, together with anticipated cash flows from operations and new financing
through the issuance of Series B Preferred  Stock, are expected by management to
be  sufficient to finance the Company's  operations  through  December 31, 1995.
However,  if the Company is not  successful  in  replacing  the revenue and cash
generated by the Boeing Agreement and the United States Air Force contract,  the
Company, as presently sized, would continue to experience  significant operating
losses.  The 1994 financial  statements have been prepared on the basis that the
Company will continue as a going concern and do not include any adjustments that
might result from the outcome of this uncertainty.


                                                  ERNST & YOUNG LLP



San Jose, California
February 17, 1995,
except for Note 3 as to which date is
April 7, 1995

                                      F-2

<PAGE>

                               Power Spectra, Inc.

                                 Balance Sheets

                                                            December 31,     
                                                    ---------------------------
                                                        1996           1995   
                                                    -----------     -----------
Assets                                                                        
Current Assets
        Cash and cash equivalents                   $   843,304     $ 2,395,372
        Accounts receivable                              69,301         290,832
        Unbilled accounts receivable                     25,813          44,989
        Inventories                                     217,744         124,818
        Other current assets                             49,277          73,039
                                                    -----------     -----------
                        Total current assets          1,205,439       2,929,050


Equipment and improvements, at cost
        Furniture and fixtures                          196,574         192,647
        Equipment                                     1,088,013       1,016,094
        Leasehold improvements                           70,487          70,487
        Construction in progress                           --              --   
                                                    -----------     -----------
                                                      1,355,074       1,279,228

Accumulated depreciation and
        amortization                                   (986,754)       (860,049)
                                                    -----------     -----------
              Net equipment and improvements            368,320         419,179

Patents, less accumulated  amortization
        of $67,415 and $47,503 in 1996 and
        1995 respectively                                72,993          67,904
Deposits                                                 26,075          26,075

                                                    $ 1,672,827     $ 3,442,208
                                                    ===========     ===========

See accompanying notes
<TABLE>
<CAPTION>
                                                                 December 31,     
                                                           1996             1995            
                                                       ------------    ------------
<S>                                                    <C>             <C>         
Liabilities and stockholders' equity
Current liabilities:
        Accounts payable                               $    161,422    $    202,877
        Accrued compensation expense                        145,049         178,148
        Allowance for contract losses                       100,000         100,000
        Deferred contract revenue                           433,177         311,320
        Accrued professional fees                            76,350          72,162
        Preferred stock dividend payable                     48,747          49,201
        Other accrued expenses                               27,696          48,606
                                                       ------------    ------------
                           Total current liabilities        992,441         962,314


Stockholders' equity
        Preferred stock, no par value; 5,000,000
               shares authorized; issuable in series
            Series A convertible, 1,500 shares
               authorized, 1,044 shares issued,
               791 outstanding (1995 - 799)
               liquidation preference of $791,000           667,720         674,473
            Series B convertible, 1,200 shares
               authorized, 1,153 shares issued,
               1,143 outstanding (1995 - 1,153)
               liquidation preference of $1,143,000         997,806       1,006,536
        Common stock, no par value,
            30,000,000 shares authorized;
            16,125,699 shares issued and
            outstanding (1995 - 13,875,235)              14,077,816      11,878,089
        Accumulated deficit                             (15,062,956)    (11,079,204)
                                                       ------------    ------------
                          Total stockholders' equity        680,386       2,479,894
                                                       ------------    ------------

                                                       $  1,672,827    $  3,442,208
                                                       ============    ============
<FN>
See accompanying notes
</FN>
</TABLE>
                                       F-3
<PAGE>
<TABLE>

                               Power Spectra, Inc.

                            Statements of Operations

<CAPTION>
                                                         Year ended December 31,
                                             --------------------------------------------
                                                 1996            1995            1994
                                             ------------    ------------    ------------
<S>                                          <C>             <C>             <C>         
Revenues:
      Product sales                          $     35,932    $     87,877    $     82,365
      Contract revenue                            964,182       1,341,748       2,977,733
                                             ------------    ------------    ------------
Total revenues                                  1,000,114       1,429,625       3,060,098


Costs and expenses
      Cost of revenue                           2,587,467       2,235,623       2,468,379
      Sales and marketing                         374,469         494,804         430,111
      Research and development                    714,368         213,667         332,612
      General and administrative                1,203,469       1,062,589         977,541
                                             ------------    ------------    ------------
Total costs and expenses                        4,879,773       4,006,683       4,208,643
                                             ------------    ------------    ------------


Loss from operations                           (3,879,659)     (2,577,058)     (1,148,545)

Interest expense                                        0         (18,126)           (895)
Interest income                                    94,552          37,083          25,611
Other income (expense)                             (3,192)         (4,129)         11,322
                                             ------------    ------------    ------------
Net loss                                     ($ 3,788,299)   ($ 2,562,230)   ($ 1,112,507)
                                             ============    ============    ============


Net loss applicable to common shares         ($ 3,983,752)   ($ 2,751,425)   ($ 1,216,907)
                                             ============    ============    ============
Loss per common share                        ($      0.26)   ($      0.25)   ($      0.12)
                                             ============    ============    ============
Number of shares used in share computation     15,622,268      11,181,541      10,014,163
                                             ============    ============    ============
<FN>

See accompanying notes
</FN>
</TABLE>

                                       F-4

<PAGE>
<TABLE>
                               Power Spectra, Inc.

                       Statements of Stockholders' Equity

           For the three years in the period ending December 31, 1996
<CAPTION>

                                                      Common Stock                             Preferred Stock                 
                                              ------------------------------   -----------------------------------------------
                                                                                      Class A                 Class B          
                                                                               ----------------------  -----------------------
                                                 Shares          Amount        Shares      Amount       Shares       Amount    
                                              -------------  ---------------   -------  -------------  ---------   ----------- 
<S>                                             <C>              <C>            <C>         <C>           <C>       <C>      
Balances at December 31, 1993                    9,948,410       $8,067,869     1,044       $881,289         --            --  
    Common stock issued in payment of 
        services at $0.94 to $1.25 per share         9,000            9,375        --             --         --            --  
    Exercise of stock options:
        at $0.88 per share                           3,922            3,432        --             --         --            --  
    Common stock issued to directors for
        directors' fees                             90,924           75,000        --             --         --            --  
    Repurchase of common stock
        at $1.06 per share                          (4,706)          (5,000)       --             --         --            --  
    Dividends on preferred stock                        --               --        --             --         --            --  
    Net loss for the year                               --               --        --             --         --            --  
                                              -------------  ---------------   -------  -------------  ---------   ------------
Balances at December 31, 1994                   10,047,550        8,150,676     1,044        881,289         --            --  
    Issuance of 1,153 shares of Series B 
        Prererred net of issuance costs of
        $31,164 and finders fees of 
        $115,300 paid, convertable
        to common stock at $0.78                   147,631          115,300        --             --      1,153     1,006,536  
    Exercise of stock options:
        at $0.88 to $1.13 per share                 32,650           28,663        --             --         --            --  
    Common stock issued to directors for
        directors' fees                             89,065           84,375        --             --         --            --  
    Private placement of common stock at 
        $1.10 less issuance costs of $407,900    3,358,326        3,292,259        --             --         --            --  
    Conversion of 245 shares of Class A
        Preferred to common at $1.22 per 
        share net of allocated preferred     
        issuance cost                              200,013          206,816      (245)      (206,816)        --            --  
    Dividends on preferred stock                        --               --        --             --         --            --  
    Net loss for the year                               --               --        --             --         --            --  
                                              -------------  ---------------   -------  -------------  ---------   ----------- 
Balances at December 31, 1995                   13,875,235       11,878,089       799        674,473      1,153     1,006,536  
    Private placement of common stock at
        $1.10 less issuance costs 
        of $258,044                              2,060,046        2,008,007        --             --         --            --  
    Exercise of stock options:
        at $0.88 to $1.28 per share                 95,945           87,729        --             --         --            --  
    Common stock issued to directors for
        directors' fees                             72,138           85,415        --             --         --            --  
    Common stock issued in payment of 
        services at $1.03 per share                  3,000            3,093        --             --         --            --  
    Conversion of 8 shares of Class A
        Preferred to common at $1.22 per
        share net of allocated preferred
        issuance cost                                6,531            6,753        (8)        (6,753)        --            --  
    Conversion of 10 shares of Class B
        Preferred to common at $0.78 per 
        share net of allocated preferred
        issuance cost                               12,804            8,730        --             --        (10)       (8,730) 
    Dividends on preferred stock                        --               --        --             --         --            --  
    Net loss for the year                               --               --        --             --         --            --  
                                              -------------  ---------------   -------  -------------  ---------   ----------- 
Balances at December 31, 1996                   16,125,699      $14,077,816       791       $667,720      1,143      $997,806  
                                              =============  ===============   =======  =============  =========   =========== 
<FN>
See accompanying notes
</FN>
</TABLE>

                                                                     Total
                                                 Accumulated     stockholders'
                                                    deficit          equity
                                                --------------   --------------
Balances at December 31, 1993                     ($7,110,872)      $1,838,286
    Common stock issued in payment of 
        services at $0.94 to $1.25 per share               --            9,375
    Exercise of stock options:
        at $0.88 per share                                 --            3,432
    Common stock issued to directors for
        directors' fees                                    --           75,000
    Repurchase of common stock
        at $1.06 per share                                 --           (5,000)
    Dividends on preferred stock                     (104,400)        (104,400)
    Net loss for the year                          (1,112,507)      (1,112,507)
                                              ----------------   --------------
Balances at December 31, 1994                      (8,327,779)         704,186
    Issuance of 1,153 shares of Series B 
        Prererred net of issuance costs of
        $31,164 and finders fees of 
        $115,300 paid, convertable
        to common stock at $0.78                           --        1,121,836
    Exercise of stock options:
        at $0.88 to $1.13 per share                        --           28,663
    Common stock issued to directors for
        directors' fees                                    --           84,375
    Private placement of common stock at 
        $1.10 less issuance costs of $407,900              --        3,292,259
    Conversion of 245 shares of Class A
        Preferred to common at $1.22 per 
        share net of allocated preferred 
        issuance cost                                      --               --
    Dividends on preferred stock                     (189,195)        (189,195)
    Net loss for the year                          (2,562,230)      (2,562,230)
                                                --------------   --------------
Balances at December 31, 1995                     (11,079,204)       2,479,894
    Private placement of common stock at
        $1.10 less issuance costs 
        of $258,044                                        --        2,008,007
    Exercise of stock options:
        at $0.88 to $1.28 per share                        --           87,729
    Common stock issued to directors for
        directors' fees                                    --           85,415
    Common stock issued in payment of 
        services at $1.03 per share                        --            3,093
    Conversion of 8 shares of Class A
        Preferred to common at $1.22 per
        share net of allocated preferred
        issuance cost                                      --               --
    Conversion of 10 shares of Class B
        Preferred to common at $0.78 per 
        share net of allocated preferred
        issuance cost                                      --               --
    Dividends on preferred stock                     (195,453)        (195,453)
    Net loss for the year                          (3,788,299)      (3,788,299)
                                                --------------   --------------
Balances at December 31, 1996                    ($15,062,956)        $680,386
                                                ==============   ==============

See accompanying notes

                                       F-5
<PAGE>
<TABLE>

                               Power Spectra, Inc.

                            Statements of Cash Flows
<CAPTION>

                                                                               Year ended December 31,
                                                               ----------------------------------------------------
                                                                    1996              1995               1994
                                                               ---------------    --------------    ---------------
<S>                                                               <C>               <C>                <C>         
Operating activities
Net loss                                                          ($3,788,299)      ($2,562,230)       ($1,112,507)
Adjustments to reconcile net loss to cash
      used in operating activities:
           Depreciation and amortization                              146,616           151,425            145,242
           Common stock issued for services and
               director compensation                                   88,508            84,375             84,375
           Changes in operating assets and liabilities:
               Accounts receivable                                    221,531          (260,418)           875,643
               Unbilled accounts receivable                            19,176            65,762            (35,834)
               Inventories                                            (92,926)           97,765           (186,120)
               Other current assets                                    23,762             9,565            (30,631)
               Accounts payable                                       (41,455)           64,834             49,427
               Accrued compensation expense                           (33,099)
               Accrued expenses                                       (17,176)           73,007             14,206
               Deferred contract revenue                              121,857           238,704             (2,257)
                                                               ---------------    --------------    ---------------
Total adjustments                                                     436,794           525,019            914,051
                                                               ---------------    --------------    ---------------
Total cash used in operating activities                            (3,351,505)       (2,037,211)          (198,456)

Investing activities
Equipment and improvements
      Additions                                                       (87,533)          (34,598)          (318,204)
      Disposals                                                        11,687                --              3,050
Patent costs incurred                                                 (25,000)               --             (5,000)
Increase  in deposits                                                      --            (1,075)                --
                                                               ---------------    --------------    ---------------
Total cash used in investing activities                              (100,846)          (35,673)          (320,154)
 
Financing activities
Proceeds from sale of common stock, net of stock
      issuance costs and repurchases                                2,095,736         3,320,922             (1,568)
Proceeds from sale of preferred stock, net of stock
      issuance costs and repurchases                                       --         1,121,836                 --
Dividends on preferred stock                                         (195,453)         (189,195)          (104,400)
                                                               ---------------    --------------    ---------------
Total cash provided by (used in) financing activities               1,900,283         4,253,563           (105,968)
                                                               ---------------    --------------    ---------------
Increase (decrease) in cash                                        (1,552,068)        2,180,679           (624,578)
Cash and cash equivalents, beginning of period                      2,395,372           214,693            839,271
                                                               ---------------    --------------    ---------------
Cash and cash equivalents, end of period                             $843,304        $2,395,372           $214,693
                                                               ===============    ==============    ===============

Supplemental schedule of noncash financing activities:
      Conversion of preferred stock to common stock                   $15,483          $206,816                 --
                                                               ===============    ==============    ===============
      Common stock and warrants issued in connection with
           financing                                                       --          $115,300                 --
                                                               ===============    ==============    ===============
      Accrual of preferred stock dividends                            $48,747           $49,201            $26,315
                                                               ===============    ==============    ===============
Cash paid during the period for:
      Interest                                                            $0           $18,126               $895
                                                               ===============    ==============    ===============
      Income taxes                                                      $800              $800               $800
                                                               ===============    ==============    ===============
<FN>
See accompanying notes
</FN>
</TABLE>
                                       F-6


<PAGE>
                               Power Spectra, Inc.

                          Notes to Financial Statements

                                December 31, 1996


1.  The Company and summary of significant accounting policies

The  Company  develops,  designs,  and  markets  a family of  products  that use
proprietary  high speed  semiconductor  devices which generate  extremely rapid,
high-power  electromagnetic  impulses.  The  primary  business of the Company is
related  to  the  Bulk   Avalanche   Semiconductor   Switch   (BASS(TM))   and
PSIristor(TM).  These switches have  applicability in  high-resolution  radar,
electronic warfare,  communications,  and industrial  applications such as level
control,   positioning,   velocity  measurement,   and  obstacle  detection  and
avoidance.  Historically,  over 90% of the  Company's  revenues  have  come from
research and development contracts with U.S. Government agencies.

In  preparing  financial   statements  in  conformity  with  generally  accepted
accounting  principles  (GAAP),  management  is required to make  estimates  and
assumptions  that affect the reported  amounts of assets and liabilities and the
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements,  and revenues  and  expenses  during the  reporting  period.  Actual
results could differ from these estimates.

The    Company    accounts    for   its    long-term    contracts    using   the
percentage-of-completion  method.  The Company had one long-term  contract whose
final  deliverable  was  completed  in the second  quarter of 1996. A reserve of
$100,000  has been set up to handle  any  contingencies,  which at this time are
unknown, related to this contract.

A material portion of the Company's  historical  business results from contracts
with or for government agencies.  There can be no assurances that the Government
will  continue  to fund such  contracts  or that the  Company  will  prevail and
capture such contracts if funded.  Additionally,  government contracts generally
provide for the termination or adjustment of material terms of such contracts at
the  election of the  government,  and the  government  may pursue  contractual,
administrative,  civil, and criminal remedies for improper or illegal activities
associated with obtaining and performing  government  contracts.  Administrative
remedies include the suspension, debarment, or ineligibility of all or part of a
company   from   receiving   government   contracts   and    government-approved
subcontracts.  As is the case with any company that performs material amounts of
business with the federal  government,  any such action by the government  could
have a material impact upon the Company's business.

The Company's  growth  strategy  includes the successful  completion of products
under development, development of new applications, and development of marketing
strategies.

The Company's  current cash position,  together with anticipated cash flows from
operations and new financing  through the issuance of Common Stock, are expected
by  management to be  sufficient  to finance the  Company's  operations  through
December 31, 1997.  However,  the actual amount of time that the Company's  cash
resources  last is dependent  upon a variety of factors  including the timing of
obtaining  new  contracts,  the  timing of new  financings,  the  success of its
current joint ventures and the  competition  with other vendors.  If the Company
determines that it requires  additional  funds prior to December 31, 1997, there
can be no assurance  that  additional  funds will be  obtainable  on  reasonable
terms,  or at all. Any such failure could result in the Company  becoming unable
to meet its  obligations  as they come due. If the Company is not  successful in
replacing  the revenue and cash  generated by the Boeing  Agreement  and the Air
Force Contract,  the Company would continue to experience  significant operating
losses. The Company does not presently have access to any credit facilities.



                                       F-7

<PAGE>

1.  The Company and summary of significant accounting policies (continued)

Unbilled accounts receivable
<TABLE>

Unbilled accounts receivable consists of the following:
<CAPTION>
                                                                                              December 31,
                                                                                    ---------------------------------
                                                                                               1996             1995
                                                                                               ----             ----
<S>                                                                                         <C>              <C>  
December  1996 and 1995 charges on cost plus  contracts  not billed until  January
1996 and 1995, respectively                                                                 $25,813          $44,989
                                                                                            =======          =======

Inventories

Inventories,  which are stated at the lower of cost (first-in,  first-out basis)
or market, consist of the following:

                                                                                              December 31,
                                                                                    ---------------------------------
                                                                                               1996             1995
                                                                                               ----             ----
Work in progress                                                                           $112,949        $  12,692
Purchased Parts                                                                             104,795          112,126
                                                                                            -------          -------
                                                                                           $217,744         $124,818
                                                                                            =======          =======
</TABLE>
Depreciation

Depreciation  is provided  using the  straight-line  method  over the  estimated
useful lives of the assets (3 to 10 years).

Patents

The cost of patents is being  amortized  over their  statutory  lives  using the
straight-line method.

Research and development contract revenue

Contract revenues are recognized on the percentage-of-completion method based on
costs incurred.

Deferred revenues

Deferred  revenues  are  payments  made by  customers  for which the Company has
deferred revenue recognition until the contract is closed out.

Loss per common share

Loss per  common  share  is  based on the  weighted  average  of  common  shares
outstanding  for all  periods  presented,  computed  using  the net  loss  after
deducting  Series A and Series B Preferred Stock dividends in 1996 and 1995, and
after deducting Series A Preferred Stock dividends in 1994. Shares issuable upon
exercise  of stock  options  have not been  included in the  calculation  as the
effect would be anti-dilutive. The Series A and Series B Preferred Stock are not
included as their effects are anti-dilutive on an as-if-converted basis.

Cash and cash equivalents

The Company's cash and cash equivalents balance consists of bank demand deposits
and money market accounts,  none of which has a maturity over three months.  The
Company considers all highly liquid debt instruments  purchased with an original
maturity date of three months or less to be cash equivalents.

                                       F-8
<PAGE>

1.  The Company and summary of significant accounting policies (continued)

401(k) plan

The Company  has adopted a defined  contribution  plan under the  provisions  of
Section 401(k) of the Internal  Revenue Code covering all  employees.  Employees
may contribute to the plan and Company  contributions are determined annually by
the  Board  of  Directors.  For  the  year  ended  December  31,  1996,  Company
contributions to the plan were $12,660 (1995--$12,457, 1994--$8,785).

2.  Series A Preferred Stock

In July 1993, the stockholders  approved an amendment to the Company's  Articles
of  Incorporation to create 5,000,000 shares of Preferred Stock, and the Company
designated  1,500 shares of the  Preferred  Stock as Series A. On September  30,
1993, the Company issued 1,044 shares of Series A Preferred Stock of the Company
in exchange for all of the  outstanding  Convertible  Debentures at a conversion
rate of one  share of the  Series A  Preferred  for  each One  Thousand  Dollars
($1,000)  principal amount of Debentures.  The holders of the Series A Preferred
are entitled to receive cumulative  dividends at the rate of 10% of the original
purchase  price of the  Series A  Preferred  per  annum,  payable  on a calendar
quarterly basis, in preference to any dividends on the Common Stock.

The Series A Preferred is convertible,  at the option of the holder, at any time
after the date of issuance, into shares of Common Stock at a conversion price of
$1.225.  Each share of the Series A Preferred  will be  automatically  converted
into  Common  Stock if at any time the holders of at least  sixty-seven  percent
(67%) of the  outstanding  Series A Preferred vote to convert all such Preferred
into Common Stock.

The  Series A  Preferred  is now  subject  to  redemption  at the  option of the
Company.  In the event that the Company  redeems  the Series A  Preferred  on or
before April 7, 1998, the redemption price will be equal to 106% of the original
purchase price of the Series A Preferred  ($1,000),  plus accumulated but unpaid
dividends to the date of redemption;  thereafter,  the redemption price shall be
equal to the  original  price of the Series A  Preferred  plus  accumulated  but
unpaid dividends to the date of redemption.

Each  holder of the  Series A  Preferred  has the  right to vote that  number of
shares equal to the number of shares of Common Stock issuable upon conversion of
such  holder's  Series A Preferred.  The Series A Preferred  shall vote with the
Common Stock on all matters,  except as may be required under applicable law and
as follows. The Company is precluded,  without first obtaining the approval of a
majority  of the  outstanding  shares  of the  Series A  Preferred,  voting as a
separate  class,  from  (1)  engaging  in any  merger,  consolidation,  sale  of
substantially all of its assets, or other reorganization in which the holders of
Series A Preferred  would not receive  their full  liquidation  preference;  (2)
declaring any dividends on the Common Stock (except  dividends payable solely in
Common Stock) while any Series A Preferred is  outstanding;  (3)  authorizing or
issuing shares of any class or series having rights,  preferences, or privileges
senior to the Series A Preferred  with  respect to  dividends,  liquidation,  or
redemption,  or issuing any  convertible  debt  instruments or debt  instruments
together with warrants  which if converted or exercised  would have a preference
or priority as to dividends,  liquidation,  or redemption senior to the Series A
Preferred; (4) amending the rights, preferences,  privileges, or restrictions of
the Series A Preferred;  or (5)  reclassifying any shares of Common Stock or any
other shares of capital stock into shares  having any  preference or priority as
to dividends, liquidation, or redemption superior to the Series A Preferred.

In the event of any liquidation or winding up of the Company, the holders of the
Series A Preferred  are  entitled to receive,  in  preference  to the holders of
Common Stock, an amount equal to the original  purchase price per share ($1,000)
of the Series A Preferred plus accumulated but unpaid dividends.

On December 31, 1995, 245 shares of the Series A Preferred  Stock were converted
into 200,013  shares of Common Stock and on July 9, 1996, 8 shares of the Series
A Preferred Stock were converted into 6,531 shares of Common Stock.

                                       F-9
<PAGE>

3.  Series B Preferred Stock

In September 1994, the Company designated 1,200 shares of the Preferred Stock as
Series B. The Company  closed new  financing of its Series B Preferred  Stock in
the aggregate  amount of $1,153,000  (1,153  shares) in 1995.  Costs incurred in
conjunction  with the Series B issuance totaled  $146,464,  of which $31,164 was
paid in cash for services,  and the remainder,  $115,300,  was paid in shares of
the Company's Common Stock at the Series B conversion price of $0.781 per share.
All  holders of the  Series B  Preferred  are  entitled  to  receive  cumulative
dividends  at the rate of 10% of the  original  purchase  price of the  Series B
Preferred per annum,  payable on a calendar  quarterly basis, after any dividend
payments  required to be made to the Series A Preferred Stock, and in preference
to any dividends on the Common Stock.

The Series B Preferred is convertible,  at the option of the holder, at any time
after the date of issuance, into shares of Common Stock at a conversion price of
$0.781 per share.  Each share of the Series B  Preferred  will be  automatically
converted  into Common Stock if at any time the holders of at least  sixty-seven
percent (67%) of the outstanding Series B Preferred approve the conversion.

The  Series B  Preferred  will be  subject  to  redemption  at the option of the
Company at any time on or after  January 13, 1997. In the event that the Company
redeems  the Series B Preferred  on or after  January  13,  1997,  but not after
January 13,  2000,  the  redemption  price will be equal to 106% of the original
purchase price of the Series B Preferred  ($1,000),  plus accumulated but unpaid
dividends to the date of redemption;  thereafter,  the redemption price shall be
equal to the  original  price of the Series B  Preferred  plus  accumulated  but
unpaid dividends to the date of redemption.

Each  holder of the  Series B  Preferred  has the  right to vote that  number of
shares equal to the number of shares of Common Stock  issuable upon  conversion.
The Series B Preferred Stockholders are entitled to vote with the holders of the
Series A Preferred  Stock and holders of Common Stock together as a single class
on all matters,  except as may be required under  applicable law and as follows.
The Company is precluded,  without first obtaining the approval of a majority of
the  outstanding  shares of the Series B Preferred,  voting as a separate class,
from (1) engaging in any merger, consolidation, sale of substantially all of its
assets, or other reorganization in which the holders of Series B Preferred would
not receive their full  liquidation  preference;  (2) declaring any dividends on
the Common Stock  (except  dividends  payable  solely in Common Stock) while any
Series B Preferred is  outstanding;  (3)  authorizing  or issuing  shares of any
class or series having rights, preferences, or privileges senior to the Series B
Preferred with respect to dividends,  liquidation, or redemption, or issuing any
convertible debt instruments or debt instruments together with warrants which if
converted or  exercised  would have a  preference  or priority as to  dividends,
liquidation,  or  redemption  senior to the Series B Preferred;  (4) amending or
repealing any  provision of, or adding any provision to, the Company's  articles
of   incorporation  or  by-laws  if  such  action  would  alter  or  change  the
preferences,  rights, privileges, or powers of, or the restrictions provided for
the  benefit  of,  the  Series B  Preferred  materially  and  adversely;  or (5)
reclassifying  any shares of Common Stock or any other  shares of capital  stock
into shares  having any  preference  or priority  as to  dividends,  liquidation
preference,  or redemption rights superior to any such preference or priority of
the Series B Preferred.

In the event of any liquidation or winding up of the Company, the holders of the
Series B Preferred  are  entitled to receive,  in  preference  to the holders of
Common  Stock but  subject  to the  rights of the  Series A  Preferred  Stock on
liquidation,  an amount equal to the original  purchase price per share ($1,000)
of the Series B Preferred plus accumulated but unpaid dividends.

On December 17, 1996, 10 shares of the Series B Preferred  Stock were  converted
into 12,804 shares of Common Stock.

                                       F-10

<PAGE>

4.  Taxes on income

A reconciliation  between the Company's effective tax rate and the United States
("U. S.") statutory rate (34%) is as follows:

                                                 Year ended December 31,
                                          1996           1995            1994
                                          ----           ----            ----
Tax (benefit) at U.S. statutory rate  ($1,288,022)   ($  871,158)   ($  378,252)
Operating losses, not utilized          1,288,022        871,158        378,352
                                       -----------    -----------    -----------
Provision for income taxes             $      --      $      --      $      --
                                       ===========    ===========    ===========

At December  31,  1996,  the Company had net loss  operating  carryforwards  for
federal  and  state  income  tax  purposes  of  approximately   $13,500,000  and
$3,800,000,  respectively.  The Company also had research and development credit
carryforwards  for  federal  tax  purposes of  approximately  $145,000.  The net
operating loss and credit  carryforwards  expire in varying  amounts through the
year 2011.

Pursuant to the Tax Reform Act of 1986,  use of the Company's net operating loss
and research and development credit  carryforwards may be substantially  limited
if a  cumulative  change  in  ownership  of more  than  50% of the  value of the
Company's stock occurs within any three-year period.

Significant  components of the Company's deferred tax assets and liabilities for
U. S. federal and state income taxes are as follows:

                                                           December 31,
                                                         1996          1995
                                                    -----------    -----------
Deferred tax assets:
         Reserves not deductible for tax purposes   $   120,000    $   120,724
         Book and tax depreciation and
              amortization differences                  (12,000)        (7,094)
         Net operating loss carryforwards             5,036,000      3,647,742
         Tax credit carryforwards                       145,000        144,790
         State taxes                                   (158,000)      (115,106)
                                                    -----------    -----------
Total deferred tax assets                             5,131,000      3,791,056
         Valuation allowance                         (5,131,000)    (3,791,056)
                                                    -----------    -----------
Net deferred tax assets                             $      --      $      --
                                                    ===========    ===========

5.  Common Stock

In August 1995 the Company  initiated a private  placement  of its common  stock
with a maximum gross proceeds to be raised from the offering of $6,000,000.  The
placement  closed at March 29, 1996.  Gross proceeds raised through December 31,
1995 were $3,694,000 and gross proceeds through March 31, 1996 were $5,960,000.

The Company  issued units in lieu of single  shares of common  stock.  Each unit
consists of one share of common stock and one common stock purchase warrant (the
"units").  Each warrant  entitles the holder to purchase  one-half of a share of
common stock and is exercisable for ten years from the date of original issuance
of the warrants at the initial  closing of the private  placement (the "original
issuance date"), subject to two vesting conditions described below. Two warrants
are  required  to  purchase  one  share.  The units were  offered to  accredited
investors only and were offered at $1.10 per unit (the "unit  offering  price").
There was no minimum offering amount.

The  warrants,  which were issued as a component of the units,  are  exercisable
only under the following circumstances and only to the following extent:

         (i) 50% of the  total  number of  warrants  held by the  investor  will
         become  exercisable  if,  within three years of the  original  issuance
         date,  the Company issues common stock or securities  convertible  into
         common  stock at a price below the unit  offering  price.  The exercise
         price of such  warrants  vested in accordance  with this  paragraph (i)
         will be equal to the price offered to the  investors in the  subsequent
         financing.

                                       F-11

<PAGE>

6.  Common Stock (continued)

         (ii) 50% of the total  number of  warrants  held by the  investor  will
         become  exercisable if, within two years of the original issuance date,
         the Company's  common stock is not quoted on the NASDAQ SmallCap Market
         (or, at the Company's sole discretion, the NASDAQ National Market). The
         exercise  price  of  such  warrants  vested  in  accordance  with  this
         paragraph (ii) will be equal to the unit offering price.

         The company has further  agreed that for three years from the  original
         issuance  date,  it will not grant any stock options under its existing
         or future stock option plans at an exercise price less than 110% of the
         unit  offering  price.  This  plan  provision  may only be  amended  or
         rescinded by the approval of the outstanding shareholders.

The Company has reserved  652,299  shares of Common Stock for the  conversion of
the Series A  Preferred  Stock,  and  1,476,313  shares of Common  Stock for the
conversion of the Series B Preferred Stock.

In connection  with the private  placement  issuance of Common Stock in 1995 and
1996,  the Company  issued for  services  rendered  warrants to acquire  225,765
shares of Common Stock at $1.32 per share.  The  warrants are fully  exercisable
and expire March 26, 2001.

Common shares issued for services have been recorded at amounts that approximate
the fair value of the shares at time of issuance.

During 1989, 1991,  1993, and 1995, the Company reserved 30,000 shares,  100,000
shares,  150,000 shares, and 200,000 shares,  respectively,  of Common Stock for
issuance  to certain  non-employee  directors  under the 1989 and 1991  Director
Incentive Stock Plan (Director  Plan).  Directors must meet certain  eligibility
requirements  for stock  awards under the  Director  Plan.  All stock awards are
fully vested at the time of grant and are for services  rendered to the Company.
The number of shares  issued is  calculated  upon a fixed dollar  amount and the
share price at the date of record.

During 1995 the Company reserved a total of 200,000  additional shares of Common
Stock under the 1991 Director Stock Plan. The Company issued 72,138 shares under
the Director Plan during 1996 (1995 --89,965, 1994 -- 90,924 shares).

In 1993,  the Company had  reserved a total of 50,000  shares of Common Stock to
issue under the Advisory  Board Stock  Program.  The terms of the Advisory Board
Stock Program are similar to those of the 1991  Director  Stock Plan except that
advisory  board  members are awarded  1,000  shares per  meeting  attended.  The
Company  issued  3,000  shares of Common  Stock under the  Advisory  Board Stock
Program  in 1996 at $1.03 per share  (1995 -- issued 4, 000 at $0.88 per  share,
1994 -- issued 9,000 shares of Common Stock at $0.94 to $1.25 per share).

Under  several  stock  option  plans,  the Company  has  granted  options to key
employees,  consultants, and directors to acquire shares of the Company's Common
Stock at prices  that are  generally  equal to fair  value at the date of grant.
Employees and  consultants  options  generally vest over five years (three years
for grants  prior to January  1,  1991) and expire if not  exercised  within ten
years of the date of grant. On June 7, 1996 the Company's  shareholders approved
the 1996  Stock  Plan.  Under the plan  1,500,000  shares of Common  Stock  were
reserved  for issuance  upon  exercise of options  granted  under the 1996 plan.
Effective  with the approval of the 1996 Plan the 1986 Plan was terminated as to
future  grants,  and the shares  reserved for issuance under such Plan were made
available  for issuance  under the 1996 Plan.  Any reserved  shares that are not
issued as a result of the  termination  of existing  options under the 1986 Plan
before they are exercised, will also be available for grant under the 1996 Plan.
Such  termination  will not  affect the  shares  subject  to  options  currently
outstanding  under the 1986 Plan.  At  December  31,  1996,  there were  811,458
options issued and outstanding  under the 1986 Plan and 9,500 options issued and
outstanding under the 1996 Plan.

The  Director  Option Plan  provides for the granting of options to directors to
acquire  shares of the  Company's  Common Stock at prices equal to fair value at
the date of grant.  These options are fully exercisable upon grant and expire if
not  exercised  within ten years  from the date of grant.  The  Company  granted
options to acquire 70,000 stock shares of Common Stock under the Director Option
Plan in 1996 at $1.85 per share (in 1995  granted  70,000  options  at $1.16 per
share and in 1994 granted  options to acquire  60,000  shares of Common Stock at
$1.13 per share). 

                                       F-12
<PAGE>

6. Common Stock (continued)

The exercise price of each option generally approximates the market price of the
Company's stock on the date of grant. Accordingly, no compensation cost has been
recognized  for the plan.  Had  compensation  cost for the plan been  determined
based on the fair value of the  options at the grant dates  consistent  with the
method of  Statement of  Financial  Accounting  Standards  123,  Accounting  for
Stock-Based Compensation ("SFAS 123"), the Company's net loss and loss per share
would have been reduced to the pro forma amounts indicated below.

                                                    1995             1996

         Net loss          As reported           $(2,751,425)     $(3,983,752)
         (applicable to    Pro forma              (2,779,525)      (4,056,820)
         common shares)
         Loss per share    As reported                $(0.25)          $(0.26)
                           Pro forma                   (0.25)           (0.26)

The fair value of each option  grant is estimated on the date of grant using the
Black  Scholes   options-pricing  model  with  the  following   weighted-average
assumptions  used  for  grants  in 1995  and  1996,  respectively:  no  expected
dividends; expected volatility of 200%; weighted average risk-free interest rate
of 6.55%; and expected lives of 5 years.

A summary of the status of the  company's  stock option plan for the three years
ended December 31, 1996, and changes during those years is presented below.

                                                         Weighted
                                                         Average
                                                         Exercise
                                            Shares        Price
                                            ------        -----

Outstanding at December 31, 1993          1,169,018       $1.73
Granted                                     201,500        1.04
Exercised                                    (3,922)       0.88
Forfeited                                  (112,500)       1.89
                                            -------
Outstanding at December 31, 1994          1,254,096        1.61
Granted                                     295,773        1.09
Exercised                                   (38,650)       0.88
Forfeited                                  (201,397)       1.80
                                            -------
Outstanding at December 31, 1995          1,309,822        1.49
Granted                                     189,500        1.60
Exercised                                   (95,945)       0.89
Forfeited                                  (313,419)       1.81
                                            -------
Outstanding at December 31, 1996          1,089,958        1.46

The  weighted-average  fair  values of options  granted  during the years  ended
December 31, 1995 and 1996 are $0.97 and $1.56, respectively.

The following information applies to options outstanding at December 31, 1996:

         Range of exercise prices            $0.88 - $1.85      $2.00 - $3.75

         Options outstanding                     961,958             128,000
         Weighted average exercise price           $1.30               $2.69
         Weighted-average remaining
           contractual life (years)                    6                   6

         Options exercisable                     795,614             118,600
         Weighted average exercise price           $1.33               $2.73

                                       F-13
<PAGE>

7.  Development and marketing agreement

In 1991, the Company  received from The Boeing Company  ("Boeing")  $2.8 million
for equipment and the  construction  of a clean room  laboratory.  In connection
with the expiration of the agreement with Boeing in 1994, Boeing agreed to allow
the Company continued use of these assets at no cost. Accordingly,  these assets
are  considered  to be on loan from  Boeing  and have not been  recorded  in the
accompanying  balance  sheets.  On an  annual  basis,  Boeing  will  review  the
Company's  continued  use of these assets and such assets may either be returned
to Boeing or purchased, at the Company's option, for an amount to be negotiated.
In connection with the  construction of the clean room  laboratory,  the Company
entered into an agreement to rent office and  manufacturing  space in a building
owned by Boeing for $20,868 per month until February 1997.

In connection with an agreement with Boeing for the development of the Company's
Bulk Avalanche  Semiconductor  Switch (BASS) device, the Company recognized $1.6
million in revenue in 1994. This agreement expired June 30, 1994.

8.  Operating leases

The Company has entered into operating leases for facilities and equipment.  The
future minimum payments under these leases are as follows:

                           1997                                 29,001
                           1998                                  4,745
                                                             ---------
                           Total minimum payments            $  33,746
                                                             =========

For  the  year  ended  December  31,  1996,  rent  expense  was  $250,413  (1995
- -- $250,413, 1994 -- $250,413).

                                       F-14
<PAGE>

9.  Valuation and Qualifying Accounts
<TABLE>

The following are the valuation and qualifying  accounts for deferred tax assets
for December 31, 1994, 1995, and 1996. (Dollars in thousands)
<CAPTION>
                                                          Additions
                                        -----------------------------------------------
                                                                          Charged to
                                         Balance at      Charged to         other                         Balance at
                                        beginning of      costs and        accounts        Deductions       end of
                                           period         expenses         describe         describe        period
                                        -------------- ---------------- --------------- ----------------- ------------
<S>                                            <C>              <C>          <C>                <C>            <C>   
Year ended December 31, 1996
    Valuation allowance on
        deferred tax assets                    $3,791           $1,340       $      --          $     --       $5,131
Year ended December 31, 1995
    Valuation allowance on
        deferred tax assets                    $2,864            $ 927       $      --         $      --       $3,791
Year ended December 31, 1994
    Valuation allowance on
        deferred tax assets                    $2,475             $389       $      --         $      --       $2,864
</TABLE>

10.  Subsequent Events

         Subsequent  to  year  end,  the  Company  entered  into a $1.2  million
contract with LandRay Technologies,  Inc. ("LandRay"), a joint venture partially
owned  by the  Company,  as the  first  phase of a  program  to  develop  Ground
Penetrating  Radar (GPR)  production  prototype system to detect precious metals
and minerals in subterranean  locations.  Contract terms call for the Company to
develop and deliver an operational GPR sensor assembly, designated the "Seeker,"
as the first phase of a complete  portable  system that will identify and target
gold deposits behind mine walls. The goal is to detect gold at distances of more
than 10 feet beyond the mine tunnel wall surface. Recent propagation tests in an
operational gold mine produced  encouraging  results. The project is expected to
be completed  within calendar year 1997.* The funds payable to the Company under
this joint venture are payable on a milestone basis. Therefore, in the event the
Company is unable to achieve  the  milestones,  it will not  realize all of such
revenue. The failure to meet the required milestones under the LandRay agreement
would have a material adverse effect on the Company's  results of operations and
financial condition.  To date approximately  $450,000 has been raised by LandRay
to fund the $1.2 million contract. Of that amount, $250,000 has been paid to the
Company.  Receipt of the balance of the contract  revenue is also dependent upon
the ability of LandRay to raise the  balance of the funds  needed to fulfill the
contract obligations

On April 10, 1997 the Company closed on a private  placement of 4,370,000 shares
of its Common Stock with gross proceeds of $1,092,500. The Company agreed to pay
a  selling  agent a  placement  fee  equal to 5% of the  gross  proceeds  of the
offering.  In addition  the  Company  has agreed to issue to the  selling  agent
Warrants to purchase Common Stock in a number of shares equal to 5% of the total
number of shares sold in the  offering.  The selling  agent's  Warrants  will be
exercisable  at $0.25 per share (equal to the offering  price of the shares) and
will be  exercisable  for a period of five  years.  The  Company  has  agreed to
register for resale the shares of Common Stock issued in the private  placement,
as well as the shares issuable upon exercise of the selling agent's warrants.

                                       F-15
<PAGE>

                                   SIGNATURES

         Pursuant to the  requirements  of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the  undersigned,  thereunto  duly  authorized on this 12th day of
May, 1997.


                         Power Spectra, Inc.


                               By:        /s/Gordon H. Smith
                                     ----------------------------------------
                                             Gordon H. Smith
                                     Chairman of the Board,
                                     President, Executive Officer


                                       43
<PAGE>

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
this  report has been  signed  below by the  following  persons on behalf of the
registrant and in the capacities and on the dates indicated.




Dated:  May 12, 1997                      /s/Gordon H. Smith
                                  -------------------------------------
                                  Gordon H. Smith, Chairman of the Board,
                                  President and Chief Executive Officer
                                  Principal Executive Officer

Dated:  May 12, 1997                      /s/Edward J. Lamb                  
                                  -------------------------------------
                                  Edward J. Lamb
                                  Controller and Chief Financial Officer
                                  Principal Financial and Accounting Officer

Dated:  May 12, 1997                      /s/Michael I. Gamble
                                  -------------------------------------
                                  Michael I. Gamble, Director

Dated:  May 12, 1997                      /s/James A. Glaze
                                  -------------------------------------
                                  James A. Glaze, Director

Dated:  May 12, 1997                      /s/John Hewitt, Jr.
                                  -------------------------------------
                                  John Hewitt, Jr., Director

Dated:  May 12, 1997                      /s/Gene J. Kennedy
                                  -------------------------------------
                                  Gene J. Kennedy, Director

Dated:  May 12, 1997                      /s/John W. Pauly
                                  -------------------------------------
                                  John W. Pauly, Director

Dated:  May 12, 1997                      /s/Richard A. Williams
                                  -------------------------------------
                                  Richard A. Williams, Director


                                       44
<PAGE>

                               INDEX TO EXHIBITS


       Exhibit
        Number                         Exhibit
       --------                       ---------
         3.0(1)     Amended  and  Restated  Articles  of  Incorporation  of  the
                    Registrant, as filed with the California Secretary of State,
                    November 28, 1988.

         3.1(9)     Certificate of Amendment of Amended and Restated Articles of
                    Incorporation   of  the   Registrant,   as  filed  with  the
                    California Secretary of State, August 30, 1993.

         3.2(9)     Certificate  of  Determination  of  Preferences  of Series A
                    Preferred  Stock  of  the  Registrant,  as  filed  with  the
                    California Secretary of State, August 30, 1993.

         3.3(7)     Certificate  of  Determination  of  Preferences  of Series B
                    Preferred  Stock  of the  Registrant  , as  filed  with  the
                    California Secretary of State, January 4, 1995.

         3.4        Certificate of Amendment of Amended and Restated Articles of
                    Incorporation   of  the   Registrant,   as  filed  with  the
                    California Secretary of State, April 4, 1997.

         3.5(3)     By-Laws of Registrant.

         10.0(2)(6) 1986  Incentive  Stock  Option  Plan as amended and forms of
                    incentive and non-statutory stock option agreements.

         10.1(4)    Research   Agreement  between   Registrant  and  The  Boeing
                    Company.

         10.2(3)    Form  of  Indemnification  Agreement,  entered  into  by the
                    Registrant   with  each  of  its   executive   officers  and
                    directors.

         10.3(3)(6) 1989 Director Incentive Stock Plan.

         10.4(6)(8) 1991 Director Stock Plan.

         10.5(5)(6) Director Option Plan.

         10.6(9)    Power Spectra,  Inc. Series A Securities Purchase Agreement,
                    dated April 7, 1993.

         10.7(7)    Power Spectra,  Inc. Series B Securities Purchase Agreement,
                    dated January 13, 1995.

         10.8       Ground Pentrating Radar Development Agreement dated June 19,
                    1996,   between  the  Registrant  and  European   Industries
                    Associates.

         10.9(10)   GPR Systems  Development,  Sale and License  Agreement dated
                    December  17,  1996  between  the   Registrant  and  LandRay
                    Technologies, Inc.

         10.10      Letter Agreement amending GPR Systems Development,  Sale and
                    License   Agreement   dated  March  13,  1997   between  the
                    Registrant and LandRay Technologies, Inc.

                                       45

<PAGE>

         10.11      Registration Rights Agreement,  dated April 11, 1997 between
                    the Registrant and certain investors.

         11.1       Computation of Loss per Share.

         23.1       Consent of Grant Thornton LLP.

         23.2       Consent of Ernst & Young LLP.

         27.1       Financial Data Schedule.

         ----------------------

         (1)   Incorporated by reference to exhibits filed with the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1988.

         (2)   Incorporated  by  reference  from the  Registrant's  Registration
               Statement on Form S-8 filed September 1, 1989 (No. 33-30855).

         (3)   Incorporated by reference from the Registrant's  Annual Report on
               Form 10-K for the fiscal year ended December 31, 1989.

         (4)   Incorporated by reference from the Registrant's  Annual Report on
               Form  10-K  for  the  fiscal  year  ended   December   31,  1988.
               Confidential treatment granted as to portions of the agreement.

         (5)   Incorporated  by  reference  from the  Registrant's  Registration
               Statement on Form S-8 filed on January 21, 1993 (No. 33-57280).

         (6)   Managerial  contract or compensatory plan or arrangement in which
               the Company's directors or officers participate.

         (7)   Incorporated by reference from the Registrant's  Annual Report on
               Form 10-K for the fiscal year ended December 31, 1994.

         (8)   Incorporated  by  reference  from the  Registrant's  Registration
               Statement on Form S-8 filed on December 26, 1996 (No. 333-18837).

         (9)   Incorporated by reference from the Registrant's  Annual Report on
               Form 10-K for the fiscal year ended December 31, 1993.

         (10)  Confidential  treatment has been requested as to portions of this
               Agreement.

                                       46


                           CERTIFICATE OF AMENDMENT OF
                 AMENDED AND RESTATED ARTICLES OF INCORPORATION
                                       OF
                               POWER SPECTRA, INC.



         Gordon H. Smith and Aaron J. Alter hereby certify that:

         1. They are the  President and Assistant  Secretary,  respectively,  of
Power Spectra, Inc., a California corporation.

         2. Article III of the  Articles is hereby  amended and restated to read
in its entirety as follows:

                  "This corporation is authorized to issue two classes of shares
                  of stock to be  designated  as "Common  Stock" and  "Preferred
                  Stock." The total  number of shares that this  corporation  is
                  authorized  to issue is sixty million  (60,000,000),  of which
                  fifty-five  million  (55,000,000)  shall be designated  Common
                  Stock  and  five  million   (5,000,000)  shall  be  designated
                  Preferred  Stock.  The Preferred Stock may be issued in series
                  with   rights,    preferences,    privileges,    restrictions,
                  designation and number of shares as determined by the board of
                  directors."

         3. The  foregoing  amendment  has been  duly  approved  by the board of
directors and the required vote of  shareholders in accordance with Sections 902
and 903 of the California  Corporations  Code. The total number of shares voting
in favor of the amendment equaled or exceeded the vote required.  The percentage
vote  required was more than fifty percent  (50%) of the  outstanding  shares of
Common  Stock and more than 50% of the  outstanding  shares of Common  Stock and
Preferred Stock, voting together on an as-converted to Common Stock basis.

         The  undersigned  declare under penalty of perjury that the matters set
forth in the foregoing certificate are true of their own knowledge.


Sunnyvale, CA                 /s/ Gordon H. Smith
4-3-97                        ------------------------------------
                              Gordon H. Smith, President


                              /s/ Aaron J. Alter
                              ------------------------------------
                              Aaron J. Alter, Assistant Secretary



                 GROUND PENETRATING RADAR DEVELOPMENT AGREEMENT



     THIS  AGREEMENT is entered into as of June 19, 1996,  by and between  POWER
SPECTRA,  INC.,  a  California  corporation,   located  at  919  Hermosa  Court,
Sunnyvale,  California 94086 ("PSI") and William B. Cormack, Drury J. Gallagher,
Michael  Rhode and William Van Horn,  collectively  d.b.a.  European  Industries
Associates, a California general partnership,  located at 235 Montgomery Street,
Suite 807, San Francisco, CA 94104 ("EIA").

     WHEREAS,   PSI  desires  to  demonstrate  the  feasibility  of  its  Ground
Penetrating  Radar (GPR) system  technology in locating  geological  structures,
cataloguing  mineralogical  radar  signatures,  and  developing  a  bread-board,
proof-of-concept GPR system capable of locating geo-structures and mineralogical
deposits relating to the installation,  use, and support of certain PSI products
in a user site prior to formal product release; and

     WHEREAS,  EIA  desires to license  said GPR  technology  for use in mining,
mineral, oil and gas, and potentially land-based archeological applications; and

     WHEREAS,  PSI and EIA have  agreed to form a new  company,  called  LandRay
Technology,  Inc.  (LTI),  a Delaware  corporation,  as a joint  venture for the
expressed purposes of developing PSI GPR systems for use in mining and petroleum
exploration and  exploitation  applications  (See EXHIBIT I - Letter of Intent &
Preliminary Term Sheet).

     IN  CONSIDERATION  THEREOF AND THE MUTUAL PROMISES  CONTAINED  HEREIN,  THE
PARTIES AGREE AS FOLLOWS:

1. DEFINITIONS

     1.1  "GPR  System"  shall mean the PSI  product(s)  specified in Schedule A
          attached hereto.

     1.2  "GPR System  Feasibility  Test  Period"  shall mean period of time set
          forth in Section 3.1 during which  testing of and  adjustments  to the
          GPR   technological   feasibility   contemplated   hereunder  will  be
          undertaken, as specified in Schedule B attached hereto.

     1.3  "Mining and Petroleum Exploration and Exploitation" shall mean the use
          of PSI's GPR system for the  detection,  evaluation,  exploration  and
          exploitation of, but not limited to, mining,  mineral, and oil and gas
          applications from above, on, or below


<PAGE>

          the surface of the earth or water, for example, defining the extent of
          an ore body to petrochemical field, and examining for mine defects.

2. PURCHASES AND PAYMENTS

     2.1  Order and  Acceptance.  The signing of this contract by EIA and/or LTI
          is considered to be an order for the GPR system technology feasibility
          demonstration  as  described  herein,  in  substantially  the  form of
          Exhibit I (GPR Prototype System Concept)  attached  hereto,  and for a
          demonstration  test  period of about,  but not  limited to, a nine (9)
          month  period.  PSI's  signing  of  this  agreement  shall  constitute
          acceptance  of this contract by PSI. EIA and/or LTI  acknowledges  and
          agrees that the delivery  dates  specified in PSI's  acceptance of any
          contracts or purchase orders are estimates only.

     2.2  Purchase  Price.  EIA and/or LTI  agrees to pay PSI Five  Hundred  and
          Fifty  Thousand  Dollars  ($550,000)  for this GPR  System  Technology
          Feasibility  Demonstration  (the  "Purchase  Price").   Following  the
          signing of the 6Jun96  Agreement  between the parties (see EXHIBIT I),
          EIA has already forwarded the initial $50,000. The parties realize and
          agree that this Purchase Price does not reflect the total cost PSI has
          incurred in developing its GPR system.

     2.3  Market Product.  Subject to Section 7.4 hereof, upon due completion of
          the GPR system technology feasibility test period and after signing of
          a formal agreement  establishing LTI,  estimated to occur within three
          months from the date of the execution and delivery of this  agreement,
          PSI agrees to (i) provide LTI with a functional GPR system in exchange
          for a development  contract for  $3,000,000,  and (ii) provide the GPR
          system exclusively to LTI for use and distribution worldwide in mining
          and petroleum  exploration and  exploitation  markets,  upon terms and
          conditions  to be  mutually  agreed  upon  during  the GPR  technology
          feasibility  test  period,  as  generally   expressed  in  EXHIBIT  I.
          Notwithstanding the foregoing, should the demonstration not occur in a
          reasonable time period, EIA and/or LTI shall not be obligated to raise
          the  additional  $3,000,000  in capital and PSI has the right to cease
          and abandon the proposed  project  without any obligation or liability
          whatsoever  to EIA and/or LTI.  EIA and/or LTI shall have no rights to
          distribute the GPR system  anywhere in the world for any purpose other
          than  mineral  and  petroleum  exploration  and  exploitation,  unless
          otherwise agreed under separate contract.

     2.4  Non-recurring   Engineering   Expense  Fee.  Upon  execution  of  this
          Agreement,  EIA and/or LTI shall pay PSI a non-refundable fee totaling
          Five Hundred  Thousand  dollars  ($500,000)  within 8 weeks of signing
          this contract,  if possible, or on the earlier of (i) October 19, 1996
          or (ii) three business days after the closing of LTI's


                                       2

<PAGE>

          private placement of securities valued at $600,000, to partially cover
          non-recurring  engineering  expenses as well as GPR system feasibility
          testing and demonstration.

3.    GPR TECHNOLOGY FEASIBILITY DEMONSTRATION TEST PERIOD

     3.1  Feasibility   Demonstration  Test  Period.  EIA  agrees  to  fund  the
          feasibility demonstration of PSI's GPR system under this Agreement for
          a period of no more than nine (9) months  commencing  with the signing
          and delivery of this agreement. Such period may be extended or reduced
          by mutual agreement of the parties.

     3.2  Feasibility Test Site. The test site(s) shall be the principal offices
          of PSI and at other mutually agreed upon mining sites for EIA's mining
          experts to verify the demonstration of PSI's system technology.

     3.3  Feasibility  Test  Period  Obligations.  During the  feasibility  test
          period,  EIA and PSI shall each undertake and perform their respective
          obligations as set forth in Sections 4 and 5 hereof.

4. OBLIGATIONS OF EIA and/or LTI

     4.1  Test Site Selection,  Preparation and System Installation.  EIA shall,
          along with its assigned mining experts,  prepare the feasibility  test
          site(s) in  accordance  with site  specifications  required by PSI and
          agreed to with EIA and its mining  experts.  PSI will  deliver the GPR
          system to EIA and be  present  for the  installation  and tests at the
          feasibility  test  site(s).  EIA,  PSI and its  mining  experts  shall
          install the GPR system immediately following its receipt in accordance
          with  instructions  provided  by PSI and  with the  assistance  of PSI
          personnel as required.

     4.2  Use.  EIA and/or  LTI  agrees  that it will use the GPR system and any
          modifications  thereto  provided by PSI during the system  feasibility
          test period only for its own  internal use and will not offer for sale
          or otherwise  offer or deliver to any third party the GPR system.  The
          GPR system,  and all performance data and test results relating to the
          GPR system shall be considered  Confidential  Information of PSI under
          Section 9 hereof, and shall not be used, disclosed or published except
          as permitted under Section 9.

     4.3  Testing.  During the technology  feasibility test period,  EIA and its
          assigned  mining  experts  agree to run such  tests with PSI as may be
          requested  by and  have  been  agreed  to  with  PSI as set  forth  in
          Schedules A and B hereto and any other tests  deemed  necessary by EIA
          and its mining  experts for  evaluation  of the GPR system  technology
          feasibility.


                                       3

<PAGE>

     4.4  Mining Expert  Manager.  EIA shall designate a "Mining Expert Manager"
          as the key  contact  for each  site(s)  during  the  feasibility  test
          period.  Such Mining Expert Manager shall provide PSI written  reports
          on all test and performance  results of the GPR system including,  but
          not limited to performance of the GPR system technology.  Such written
          reports shall be submitted within two weeks following the test period,
          and the  Mining  Expert  Manager  shall  meet  and  discuss  with  PSI
          personnel  the  performance  of the GPR  system  technology  at  PSI's
          request.

     4.5  Error  Notice.  EIA's Mining  Expert  Manager  shall notify PSI of any
          failure,  error or  other  malfunction  of any part of the GPR  system
          within twenty-four (24) hours of such occurrence, if PSI personnel are
          not at the test site.

     4.6  Modifications.  EIA and its Mining Expert Manager(s) agree to promptly
          implement such  modifications and changes that PSI may make to the GPR
          system  during the  feasibility  test period,  as they are provided by
          PSI,  subject to the  provisions  of Section 5.2.  Except as otherwise
          specified in this Agreement or at the written direction of PSI, EIA or
          its  Mining  Expert  Manager  shall not alter or modify any GPR system
          during  the  feasibility  test  period  without  PSI's  prior  written
          approval.

     4.7  Access.  During the feasibility test period, EIA and its Mining Expert
          Manager  will grant PSI full and free  access to test fields and sites
          with the GPR system, to allow PSI to perform under this Agreement,  at
          such reasonable times as may be required by PSI.

     4.8  Ownership. EIA and/or LTI hereby irrevocably assigns to PSI all of its
          right,  title and interest in and to any and all technology,  know-how
          and  other  information  incorporated  into  the GPR  system  alone or
          jointly  with others in  connection  with the  development  of the GPR
          system or any  modification  of or improvement to the GPR system which
          EIA and/or LTI or its mining  experts  may  propose or make during the
          feasibility test period (collectively,  the "Product Technology"), and
          all copyrights,  trade secrets,  patent rights and other  intellectual
          property rights relating to Product Technology.  EIA and/or LTI agrees
          to,  and to cause  its  employees,  agents  and  consultants  to sign,
          execute and  acknowledge  documents  and  perform  such acts as may be
          reasonably  necessary  to  perfect  the  foregoing  assignment  and to
          obtain,  enforce and defend  intellectual  property  rights within the
          Product Technology.

     4.9  Publications.  EIA  agrees  that  during  and  after  the term of this
          Agreement,  EIA shall make no announcement  or publication  concerning
          the GPR system or this Agreement  without the prior written consent of
          PSI, which shall not be unreasonably withheld or delayed.

                                       4

<PAGE>

5. OBLIGATIONS OF PSI

     5.1  Technical  Assistance.  PSI will provide EIA such technical assistance
          as PSI may deem necessary to properly  place,  install and operate the
          GPR system at the GPR system technology  feasibility test site(s). PSI
          will provide EIA with the applicable support and documentation for the
          use, operation and testing of the GPR system.

     5.2  Modifications.  During the feasibility  test period,  PSI will consult
          with EIA and/or LTI  regarding the  performance  of the GPR system and
          will evaluate the test data and error reports  provided by EIA and its
          mining  experts.  PSI will  undertake to make such  modifications  and
          improvements  to the  GPR  system  as  deemed  appropriate  by PSI and
          provide  the same to EIA and/or  LTI;  provided,  however,  PSI is not
          obligated  to make any specific  modifications  or  improvements;  and
          provided  further that if such  modifications  result in a substantial
          cost to PSI, in PSI's sole opinion, the parties hereto shall negotiate
          an  additional  fee  to  cover  additional  non-recurring  engineering
          expenses.

6. NO WARRANTY

     6.1  Warranty.  EIA and/or LTI  understands and agrees that because the GPR
          system is new  technology,  it may  contain  design  errors  and other
          defects,  and that there is no  guarantee  that such  errors and other
          defects  will  be  corrected  or a  marketable  product  produced  and
          released.  The  expressed  purpose  of  this  feasibility  test  is to
          demonstrate  PSI's  GPR  system  technology  in mining  and  petroleum
          applications,  and there is no guarantee that these tests will produce
          positive  results.   FOR  THE  FOREGOING   REASONS,   THE  GPR  SYSTEM
          TECHNOLOGY, IS OFFERED HEREUNDER "AS IS." PSI MAKES AND EIA AND/OR LTI
          RECEIVES NO WARRANTIES IN CONNECTION WITH THE GPR SYSTEM TECHNOLOGY OR
          MODIFICATIONS OR IMPROVEMENTS THERETO,  DELIVERED HEREUNDER,  EXPRESS,
          IMPLIED,  STATUTORY  OR IN ANY OTHER  PROVISION  OF THIS  AGREEMENT OR
          COMMUNICATION  BETWEEN  EIA  AND/OR  LTI  AND  PSI.  PSI  SPECIFICALLY
          DISCLAIMS ANY IMPLIED WARRANTY OF NONINFRINGEMENT,  MERCHANTABILITY OR
          FITNESS  FOR  A  PARTICULAR   PURPOSE.   No  representation  or  other
          affirmation of fact, oral or written,  including,  but not limited to,
          any statement regarding capacity,  suitability for use or performance,
          whether made by PSI's  employees or otherwise,  which is not contained
          in this  Agreement,  shall be deemed to be a  warranty  by PSI for any
          purpose,  or give rise to any liability of PSI whatsoever to produce a
          functional GPR system feasibility test.

                                       5

<PAGE>

7. TERMINATION

     7.1  Termination of  Feasibility  Test Period.  Unless  earlier  terminated
          under  Section 7.3 below,  the  obligations  of EIA and/or LTI and PSI
          during the  feasibility  test period shall terminate upon the last day
          of the feasibility test period.

     7.2  Breach by EIA and/or LTI During  Feasibility Test Period. In the event
          that EIA  and/or  LTI  breaches  any  material  obligation  during the
          feasibility test period, and such breach is not remedied within thirty
          (30) days after notice thereof by PSI, PSI may at its option terminate
          this Agreement.

     7.3  Effect of  Termination.  If this  Agreement is terminated  pursuant to
          Section 7.2 above,  PSI shall not be obligated under Section 2.3 above
          to  provide  EIA  and/or  LTI with the  stated  terms  and  conditions
          following formal release of the GPR system.

     7.4  Survival.  Notwithstanding  any  termination  of all or  part  of this
          Agreement,   the  following  provisions  shall  survive:  Section  4.9
          (Ownership),  Section 4.10  (Publications),  Section 6 (No  Warranty);
          Section 7  (Termination);  Section 8  (Limited  Liability);  Section 9
          (Confidentiality); and Section 10 (Other Provisions).

8. LIMITED LIABILITY

          PSI's TOTAL AGGREGATE LIABILITY ARISING OUT OF THIS AGREEMENT, WHETHER
          FOR  BREACH OF  CONTRACT  OR TORT OR  OTHERWISE,  SHALL NOT EXCEED THE
          AMOUNTS  RECEIVED  BY PSI FROM EIA AND/OR LTI  HEREUNDER.  IN NO EVENT
          WILL PSI BE LIABLE FOR ANY DAMAGES,  INCLUDING  LOST PROFITS,  COST OF
          COVER OR OTHER SPECIAL, INCIDENTAL,  CONSEQUENTIAL OR INDIRECT DAMAGES
          ARISING  FROM THE USE OF ANY  PRODUCT OR  ACCOMPANYING  DOCUMENTATION,
          HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY.  THIS  LIMITATION  WILL
          APPLY EVEN IF PSI HAS BEEN ADVISED OF THE  POSSIBILITY OF SUCH DAMAGE,
          AND IN THE EVENT OF ANY FAILURE OF ESSENTIAL PURPOSE.

9. CONFIDENTIALITY

     9.1  Confidential Information.  As used herein,  "Confidential Information"
          means all  information  regarding  the GPR  system  and  modifications
          thereto,  including  without  limitation all test data and information
          with respect to the use,  installation and operation of the GPR system
          or  modifications  thereto,  whether received from PSI or developed by
          EIA and/or LTI, and regardless of the presence or absence of any 

                                       6


<PAGE>

          copyright or other proprietary legends. Confidential Information shall
          also include the terms and  conditions of this  Agreement.  EIA and/or
          LTI agrees that both during and after the term of this Agreement,  EIA
          and/or  LTI  will  not  use any  Confidential  Information  except  in
          accordance with the provisions and for the purposes of this Agreement,
          and will not disclose any Confidential  Information to any third party
          without the prior  written  consent of PSI. EIA and/or LTI shall treat
          Confidential  Information with at least the same degree of care as EIA
          and/or LTI uses for its own most confidential  information,  but in no
          case less than  reasonable  care, and shall require all employees with
          access to Confidential  Information to have executed a  non-disclosure
          agreement,  acknowledging  the confidential and proprietary  nature of
          the  Confidential   Information  and  agreeing  not  to  disclose  the
          Confidential Information or to use the Confidential Information or any
          portion  thereof,  for any  purpose  other  than as set forth  herein.
          Except  as  expressly  provided  herein,  nothing  contained  in  this
          Agreement shall grant or be construed as granting to EIA and/or LTI or
          its associates any title, right or interest,  by license or otherwise,
          to  any  Confidential   Information,   or  to  any  invention  or  any
          intellectual property rights based on any Confidential Information.

     9.2  Exception.  Notwithstanding  the foregoing,  Confidential  Information
          shall not include any information to the extent that such  information
          is (i) publicly available and generally known prior to this Agreement,
          (provided   that  EIA  and/or  LTI  shall  not  be  excused   for  any
          unauthorized   disclosure   it  makes   prior  to  such   Confidential
          Information  becoming publicly known), (ii) rightfully received by EIA
          and/or  LTI  from a  third  party  without  accompanying  confidential
          obligations,  (iii) independently  developed by EIA and/or LTI without
          any  use  of  Confidential  Information,   as  documented  by  written
          evidence,  or (iv)  disclosed  pursuant  to  court  order,  regulator,
          subpoena or other form of legal process.  A copyright notice in and of
          itself  shall not  constitute  or  evidence  a  publication  or public
          disclosure.

     9.3  Breach.  EIA and/or LTI acknowledges and agrees that any breach of its
          obligations  under this Section 9 will cause  irreparable harm to PSI.
          Accordingly,  EIA and/or  LTI agrees  that in the event of a breach or
          threatened  breach of this Section 9, in addition to any remedy at law
          to which PSI is entitled,  PSI shall be entitled to obtain appropriate
          equitable relief.

10. OTHER PROVISIONS

    10.1  Independent Contractors. The relationship of the parties hereto are at
          this point independent contractors,  and neither party is an employee,
          agent,  partner or joint venturer of the other, except as described in
          EXHIBIT I.

    10.2  Governing Law and  Jurisdiction.  This Agreement  shall be governed by
          and construed under the law of the State of California  without regard
          to conflict of laws

                                        7


<PAGE>

          provisions.  The  federal  and  state  courts of Santa  Clara  County,
          California  shall have exclusive  jurisdiction and venue to adjudicate
          any dispute arising out of this Agreement. Each party hereto expressly
          consents to the personal  jurisdiction of the courts of California and
          service of process being  effected upon it by registered  mail sent to
          the address set forth at the beginning of this Agreement.

    10.3  Entire  Agreement.  This Agreement sets forth the entire agreement and
          understanding of the parties relating to the subject matter hereof and
          merges  all prior  discussion  between  them.  No  modification  of or
          amendment to this  Agreement,  nor any waiver of any rights under this
          Agreement,  will be  effective  unless set forth in writing  signed by
          officers of both parties hereto.

    10.4  Notices. All notices or other communications  required or permitted to
          be given pursuant to this  Agreement  shall be in writing and shall be
          considered as duly given on (a) the date of delivery,  if delivered in
          person,  by nationally  recognized  overnight  delivery  service or by
          facsimile or (b) three days after  mailing,  if mailed from within the
          continental  United  States by  registered  or certified  mail, return
          receipt  requested  to the party  entitled to receive the same,  if to
          PSI, c/o Edward Lamb, 919 Hermosa Court, Sunnyvale,  California 94086,
          facsimile  number (408)  732-1832,  if to EIA, c/o William B. Cormack,
          235 Montgomery  Street,  Suite 807, San Francisco,  California  94104,
          facsimile  number  (415)  433-6930,  and  if  to  LTI,  c/o  Drury  J.
          Gallagher,  437 West 38th Street,  Suite 5G, New York, New York 10019,
          facsimile  number  (212)  980-4525.  Any party may  change  his or its
          address by giving  notice to the other  party  stating  his or its new
          address.  Commencing  on the 10th day after the giving of such notice,
          such newly  designated  address shall be such party's  address for the
          purpose of all notices or other  communications  required or permitted
          to be given pursuant to this Agreement.

    10.5  Force Majeure.  Nonperformance  of either party will be excused to the
          extent that performance is rendered impossible by strike, fire, flood,
          governmental acts or orders or restrictions,  failure of suppliers, or
          any other  reason  where  failure to perform is beyond the control and
          not caused by the negligence of the non-performing party.

    10.6  Assignment  and  Binding  Effect.  EIA and/or LTI may not  transfer or
          assign its rights or  obligations  under this  Agreement  without  the
          prior written consent of PSI. Subject to the foregoing sentence,  this
          Agreement will be binding upon and inure to the benefit of the parties
          hereto, their successors and assigns.

    10.7  Partial  Invalidity.  If any provision of this Agreement is held to be
          invalid  by a court of  competent  jurisdiction,  then  the  remaining
          provisions  will  nevertheless  remain in full force and  effect.  The
          parties agree to  re-negotiate in good faith any term held invalid and
          to be bound by the mutually agreed substitute provision.

                                       8

<PAGE>

    10.8  No Waiver.  The failure of either  party to enforce at any time any of
          the provisions of the Agreement, or the failure to require at any time
          performance  by the  other  party  of any of the  provisions  of  this
          Agreement,  will in no way be  construed  to be a  present  or  future
          waiver of such  provisions,  nor in any way  affect  the  validity  of
          either party to enforce each and every such provision thereafter.

    10.9  Counterparts.   This   Agreement  may  be  executed  in  two  or  more
          counterparts,  each of which  will be  deemed an  original  and all of
          which together will constitute one instrument.

    10.10 Headings.  The heading of the several  sections of this  Agreement are
          intended for  convenience of reference only and are not intended to be
          a  part  of or  to  affect  the  meaning  or  interpretation  of  this
          Agreement.

    10.11 No License.  Except as explicitly set forth herein,  nothing contained
          in this  Agreement  shall be  construed as granting or  conferring  by
          implication,  estoppel  or  otherwise,  any license or right under any
          patent,  trademark,  copyright or other proprietary right, whether now
          existing or  hereafter  obtained,  and no such  license or other right
          shall  arise  from this  Agreement  or from any acts or  omissions  in
          connection  with the execution of this Agreement or the performance of
          the  obligations  of the parties  hereunder.  In support of the intent
          expressed  in the  Joint  Venture  Letter  of  Intent  and Term  Sheet
          contained  in  EXHIBIT I, the GPR system  license  agreement  shall be
          included in the formal joint venture  business  agreement  between PSI
          and LTI, to be negotiated in good faith  substantially  in the form of
          EXHIBIT I and executed before 1 Sep 96.


                                       9

<PAGE>

     IN WITNESS  WHEREOF,  duly authorized  representatives  of the parties have
executed this Agreement as of the date first set forth above.

POWER SPECTRA, INC.                               LandRay Technology, Inc.

By: /s/ Gordon H. Smith                           By: /s/ William B. Cormack
   ---------------------------                       ---------------------------
   Signature                                         Signature

   Gordon H. Smith                                   William B. Cormack
   Chairman, CEO                                     EIA/LTI Principal

                                                  By: /s/ Drury J. Gallagher
                                                     ---------------------------
                                                     Drury J. Gallagher
                                                     EIA/LTI Principal

                                                  By: /s/ Michael Rhode
                                                     ---------------------------
                                                     Michael Rhode
                                                     EIA/LTI Principal

                                                  By: /s/ William G. Van Horn
                                                     ---------------------------
                                                     William G. Van Horn
                                                     EIA/LTI Principal

                                       10


<PAGE>

                                   EXHIBIT I

                   LETTER OF INTENT & PRELIMINARY TERM SHEET



<PAGE>

                                                                        6 Jun 96

Power Spectra, Inc.
919 Hermosa Court
Sunnyvale, CA 94086-4103

Gentlemen:

We are  pleased to submit  this  letter of intent in which  European  Industries
(EI), through the efforts of Messrs. William Cormack,  Drury Gallagher,  Michael
Rhode, and William Van Horn, would assist a newly formed  corporation,  NewCo, a
Delaware  Corporation,  in obtaining  capital for its business. NewCo, organized
with the expressed intent of being an operating  company,  is a joint venture of
Power Spectra (PSI) and EI established for the expressed  purposes of developing
PSI Ground  Penetrating Radar (GPR) systems for use in mining,  mineral oil, and
gas,  and  land-based  archeological  applications.   Specifically,   NewCo  has
expressed an interest in  retaining  EI to act as its  Managing  Agent to assist
with the  private  placement  of  common  stock  in the  approximate  amount  of
$3,550,000.

Although  the  final  terms  of  the  stock  offering  are  subject  to  further
negotiations between NewCo and EI, the parties agree that the starting point for
such good faith negotiations are contained in the attached exhibit titled NewCo,
A Joint Venture Company,  dated 6Jun96 (see attached).  This exhibit details the
letting of  development  contracts  to PSI from  NewCo,  as  follows:  the first
$50,000 of which would be paid to PSI upon signing of this  agreement for a four
month option to raise an additional $500,000;  the $500,000 would be paid to PSI
to prove the feasibility of a PSI impulse  generator based GPR; and, given proof
of the mineralogical capabilities of this PSI GPR technology EI would then raise
the remaining $3,000,000 for PSI to develop the mineralogical GPR prototype.  In
addition,  it  is  our  mutual  understanding  that  NewCo  still  needs  to  be
incorporated  and that  this  process  needs to be fairly  complete  prior to EI
committing the final $3,000;000 in resources to this transaction.

Prior to the $500,000 financing EI and PSI each own 50% of NewCo, conditional on
EI raising the $500,000. Following the $500,000 financing, which could result in
giving up about 20% of NewCo to the new  investors,  EI and PSI shares,  in this
event, would be about 40% each. EI will receive,  upon successful  completion of
the  $3,000,000  offering,  an estimated  equity  position of a 25% ownership in
NewCo. PSI will also receive an equity position of a minimum,  non-dilutable 25%
ownership in NewCo and the rights to manufacture all radar equipment and systems
used by NewCo.  Both EI and PSI (as well as any new investorst will be co-owners
of all equipment in NewCo.



<PAGE>

If you agree  that  this  letter of intent  states  the  essential  facts of our
discussion,  please  execute and return one copy to us by 6Jun96.  Upon receipt,
we will  complete  and  forward  to you a Summary  of  Proposed  Terms that will
outline in detail. the terms and conditions of this transaction.

We look forward to  assisting  you and  participating  in the growth of this new
venture.

                                        Sincerely,

                                        William B. Cormack, Jr.
                                        Principal, European Industries



The foregoing agreement is approved and accepted.

Power Spectra, Inc.

By: /s/ Gordon H. Smith
   --------------------------
   Gordon H. Smith

Its:  Chairman and C.E.O.

Date: 6Jun96


<PAGE>

June 6, 1996                                                              Page 1

                    NewCo, A Joint Venture Operating Company
                                      for
                     Ground Penetrating Radar Applications
                                       to
               Detect and Identify Buried Resources and Materials

1. Parties:
     a.  Power Spectra, Inc., a California Corporation, having principal offices
         at 919 Hermosa Court, Sunnyvale, California 94086, USA.
     b.  European  Industries (EI),  functioning  through the efforts of Messrs.
         William Cormack, Drury Gallagher, Michael Rhode and William Van Horn.

2. Opportunity
     a.  There  are  hundreds  of  private   corporations,   organizations   and
         governments  throughout the world whose interests and  responsibilities
         include mining, mineral, and oil & gas exploration.  Given proof of the
         applicability of PSI impulse generator technology in ground penetrating
         radar  applications,  the market  opportunity  is at least  hundreds of
         millions, if not billions, of dollars annually.

3. Proposed Solution:
     a.  The Parties form a joint  venture,  NewCo, a Delaware  Corporation  and
         operating  company,  to develop  and market  ground  penetrating  radar
         system(s)  capable of locating and  identifying  minerals and oil & gas
         formations.
     b.  NewCo  provides  vehicle(s)  for  operational   deployment  of  systems
         developed in (a) above,  with NewCo  retaining title to all systems and
         platforms.
     c.  Major benefit and primary  purpose of NewCo would be system  capability
         to locate and  identify  surface and  subsurface  mineral  deposits and
         formations from a variety of platforms.

4. Contributions of the parties:
     a.  Power Spectra
         1.  Develops,  designs  and  markets  a  family  of  products  that use
             proprietary  high  speed   semiconductor   devices  which  generate
             extremely  rapid,  high  power  electromagnetic   impulses.   PSI's
             products  emit very high  power  signals  in  extremely  short time
             intervals,  and  deliver  much  more peak  strength  over a broader
             frequency spectrum than conventional pulsed  transmitters,  without
             increasing input power.
         2.  Believes that its unique  proprietary  technology is years ahead of
             the  competition.  The combination of patent law and trade secrets,
             imposes significant barriers to entry by competitors.
         3.  Has  worked  for a  number  of  years  with  the US  Army  Research
             Laboratory on ground penetrating radar. Power Spectra's  transminer
             technology was

                           Power Spectra Proprietary

<PAGE>

June 6, 1996                                                              Page 2

             recently lauded by US Army Research Laboratories in a press release
             stating  that through use of the  technology,  the Army was for the
             first time able to image anti-personnel mines composed primarily of
             plastic from operational altitudes (about 150 feet above ground).
         4.  Has a network of specialist individuals and organizations available
             to provide a systems solution.
    b. European Industries
         1.  Provides financial backing for systems development.
         2.  Has access to  government  functionaries  whose  roles  encompass a
             broad array of interests within their countries.
         3.  Provides  management  to run location  and mapping  services of the
             operational radar systems for mineralogical applications.
5. Operational Detail:
     a.  In return for a minimum  non-dilutable  25%  ownership in NewCo through
         the  financing  described  in  5.b.  (dilution  may  occur  after  full
         developmental  funding,  see 5.b., or if PSI has a cost  overrun  above
         those costs shown in 5.b.):
         1.  PSI agrees to grant to NewCo an  exclusive  world  wide  commercial
             license (with  transferable  rights by NewCo) for use of its ground
             penetrating radar for mining, mineral, or petroleum exploration and
             exploitation.  "Transferable rights," as used here, means NewCo has
             the rights to sub-license or  negotiate  additional  agreements  or
             joint ventures as necessary in these  exclusive  markets to develop
             its business (e.g.,  in the Peoples  Republic of China all business
             is executed through "Trade  Corporations" who are full participants
             in the business enterprise).
         2.  The  parties  further  agree to  negotiate  in good faith  specific
             additional   opportunities   that  may   arise   in   archeological
             exploration.
     b.  NewCo will issue  development  contract(s) to PSI to develop the ground
         penetrating radar for use by NewCo operations, as follows:
         1.  Phase I: NewCo  will,  within one week of signing  this  agreement,
             transfer $50,000 to PSI for a four month option to raise $500,000.
         2.  Phase II: The additional  $500,000 will be paid to PSI to prove the
             mineralogical  capabilities  of impulse  synthetic  aperture  radar
             (Such proof of technology  will be  determined  by mining  interest
             experts).  If technical feasibility is not satisfactorily proven at
             the end of Phase II, any rights granted under this agreement revert
             to PSI.
         3.  Phase III: After PSI successfully  proves 5.b.2.  above, NewCo will
             raise $3,000,000 within six months for PSI to develop the prototype
             mineralogical  finding radar. In the event  considerably  more than
             $3,000,000  is required,  PSI and EI/NewCo  shall ratably share any
             dilution from that point forward.
     c.  EI  will  recruit  and  provide  management  and  personnel  for  NewCo
         operations.
     d.  NewCo  enters into  contracts  with various  governmental  agencies and
         corporations  or  organizations  world wide with  interests  in mining,
         mineral, and oil & gas exploration and exploitation.

                           Power Spectra Proprietary



<PAGE>

June 6, 1996                                                              Page 3

     e.  Should  NewCo  choose  not  to   participate   in  any  given  business
         opportunity,  assuming a  reasonable  time  period for  evaluation  and
         participation,  then the right to pursue  that  opportunity  reverts to
         PSI.
     f.  Intellectual   Property,  in  the  form  of  proprietary   information,
         technical data, invention concepts, patents, copyrights, trade secrets,
         software  (in the form of source code and object  code),  know-how  and
         show-how  may  be  developed  in  the   performance   of  research  and
         development  within  the  scope of this  agreement.  PSI  shall own and
         retain all rights,  title and  interest in any  developed  Intellectual
         Property.
     g.  Details relating to minimum royalties, time limits for development, and
         other  normal and typical  contractual  terms will be  contained in the
         legal  agreement  between EI and PSI in the formation of NewCo.  h. The
         NewCo Board of Directors will be comprised of representatives  from EI,
         PSI and the new investors.

                           Power Spectra Proprietary.



<PAGE>

                                   SCHEDULE B

                   GPR TECHNOLOGY FEASIBILTY TESTING SCHEDULE

[PROPOSED TEST SCHEDULE]



<PAGE>

                           FEASIBILITY STUDY SCHEDULE



                               [GRAPHIC OMITTED]


<PAGE>

                                   SCHEDULE A

            GROUND PENETRATING RADAR (GPR) PROTOTYPE SYSTEM CONCEPT

                         [Describe Proposed GPR System]



<PAGE>

                           An Example Strawman System
                       Mineral and Ore Identifying Radar                 6/17/96
                               Power Spectra Inc.
                               Sunnyvale, CA 94086

Premise

Advances in ground-penetrating  radar will enable radar systems with significant
utility to the  mining and  geology  industries.  Specification  of such a radar
awaits  detailed  studies and tests.  In the interim,  however,  it is useful to
define an example radar on a frame of knowledgeable guesswork.  This informs the
reader regarding early stages of concept planning, and points out those emerging
areas of  ground-penetrating  radar (GPR)  technology that enable such concepts.
Interpretation  of the concepts  presented  herein beyond these caveats would be
premature.

Possible Operating Modes and Platforms

A  mineralogy-oriented  GPR could  take on a number of  formats,  with the radar
based on borehole or tunnel measurements, ground operation, or even airborne. Of
these,  the  airborne  option  will  be  used  in  this  discussion.   Airborne,
low-frequency  electromagnetic  (EM)  measurements  for  geological  studies  is
already a useful  reality.  A helicopter is selected as the operating  platform.
One possible alternative would be a large, slow aircraft such as a DC-3.

Selected Strawman Characteristics

A side-looking,  synthetic-aperture radar (SAR) is envisioned.  This would be an
ultra-wideband  impulse  system  with an output  spectral  peak at 10 MHz.  Peak
transmitter  power  would be in the  100-MW  range.  With this  power,  and with
favorable soil conditions, the radar could penetrate several hundred meters into
the ground.

The  antenna  for this radar  would be quite  large,  and may force the use of a
large, fixed-wing aircraft over the more flexible helicopter. Suppression of the
antenna back lobe may be a major problem.

The  aircraft  would fly at an altitude  of between 500 and 1000 feet.  Aircraft
cruise  speed would be 120 knots.  The radar would view the ground  below and to
the side of the aircraft.  Spatial  resolution of the processed radar data would
be on the order of 50 feet.  The imaged  swath would be at least 1000 feet wide,
providing  an area  coverage  of over 20 square  miles per hour.  Data  would be
processed in real time on board the aircraft,  and the in-flight  operator would
be presented  with rolling radar images  updated  several times per second.  All
data would be recorded  and  referenced  to position  using  on-board  GPS and a
computerized  geographical  information system (GIS) database. The entire system
would be autonomous and capable of operating anywhere in the world.

Review of Enabling Technologies

The proposed  strawman system has not been realizable  until recently,  although
the



<PAGE>

phenomenology  of  radar  interaction  with  various  soils in  minerals  at the
selected operating frequency is well understood. Enabling technologies that have
emerged within the last three years include:

1.   High  power  impulse  generators,  light in  weight,  based on  solid-state
     technology, and compatible with the airborne platform.

2.   High speed transient digitizers, also compatible with the platform, capable
     of acquiring and digitizing the radar return data at an adequate rate.

3.   Computational  algorithms to deconvolve the received radar returns into 3-D
     images.

4.   High speed, compact, and low cost digital computers and specialized digital
     signal processing modules.

Note on Competing Technologies

An alternative  ultra-wideband radar sensor would use stepped-frequency or chirp
techniques.  The advantage of the Power Spectra  impulse  approach is relatively
small  size  and low  cost  for the same  performance.  This is  expected  to be
important,  both  for  economic  reasons,  and to be  able  to use a  reasonable
airborne platform.

A   stepped-frequency   system   will  be  easier  to  deal  with  in  terms  of
electromagnetic  interference to other spectrum users. In the selected frequency
range,  commercial radio and television stations will not be affected,  nor will
navigation  aids.  What will  primarily  be affected  are various  civilian  and
military mobile hf  communications  gear. Given the remote nature of most mining
operations,  and  the  fact  that  constant  operation  in any  one  area is not
necessary,   the  lighter,  lower  cost  impulse  approach  appears  to  be  the
appropriate choice.



- --------------------------------------------------------------------------------


               GPR SYSTEM DEVELOPMENT, SALE AND LICENSE AGREEMENT

                                 by and between

                               Power Spectra, Inc.

                                       and

                            LandRay Technology, Inc.

                                   dated as of

                                December 17, 1996



- --------------------------------------------------------------------------------



<PAGE>


                                TABLE OF CONTENTS

                                                                            Page

ARTICLE 1.   DEFINITIONS......................................................1
         Section 1.1       Capitalized Terms..................................1

ARTICLE 2.   DELIVERABLES AND DEVELOPMENT.....................................2
         Section 2.1       Development........................................2
         Section 2.2       Changes............................................2
         Section 2.3       Additional Development.............................3
         Section 2.4       Project Manager....................................3
         Section 2.5       Replacement of Project Managers....................3
         Section 2.6       Commercial Manufacture and Use.....................3

ARTICLE 3.   ACCEPTANCE PROCEDURE.............................................3
         Section 3.1       Acceptance of Versions.............................3
         Section 3.2       Acceptance of Other Deliverables...................4
         Section 3.3       Access.............................................4
         Section 3.4       Periodic Reports...................................4

ARTICLE 4.   CONTRACT PRICE...................................................4
         Section 4.1       Contract Price.....................................4
         Section 4.2       Contract Price Adjustment..........................4
         Section 4.3       Form of Payment....................................4

ARTICLE 5.   LICENSE, ROYALTIES AND OWNERSHIP RIGHTS..........................4
         Section 5.1       GPR Technology License.............................4
         Section 5.2       Commercialization..................................5
         Section 5.3       Ownership..........................................5
         Section 5.4       Use of Third Party Materials.......................6
         Section 5.5       Information About Third Party Materials............6

ARTICLE 6.   CONFIDENTIALITY..................................................6
         Section 6.1       Confidential Information...........................6
         Section 6.2       Permitted Use and Disclosures......................7
         Section 6.3       Public Disclosure..................................7

ARTICLE 7.   TERM AND TERMINATION.............................................7
         Section 7.1       Term...............................................7
         Section 7.2       Termination for Breach.............................7
         Section 7.3       Termination for Insolvency.........................7
         Section 7.4       Effect of Breach or Termination....................8
         Section 7.5       Survival...........................................8

                                      -i-

<PAGE>

                                TABLE OF CONTENTS
                                  (continued)

ARTICLE 8.   PSI NAME AND LOGO................................................8
         Section 8.1       PSI Logos..........................................8
         Section 8.2       Copyright, etc. Notices............................8

ARTICLE 9.   PRODUCT SUPPORT..................................................8
         Section 9.1       Post-Development Support...........................8

ARTICLE 10.   WARRANTIES AND SUPPORT..........................................9
         Section 10.1      Warranties By PSI..................................9
         Section 10.2      Warranties By LandRay..............................9
         Section 10.3      Product Warranties by PSI.........................10
         Section 10.4      No Warranties to Third Parties....................10

ARTICLE 11.   LIMITATIONS ON WARRANTIES AND LIABILITY........................10
         Section 11.1      Warranty Limitation...............................10
         Section 11.2      Liability Limitations.............................10

ARTICLE 12.   INDEMNIFICATION................................................11
         Section 12.1      Indemnification...................................11
         Section 12.2      Conditions on Indemnity...........................11

ARTICLE 13.   FUTURE PRODUCTS................................................11

ARTICLE 14.   NOTICES........................................................12

ARTICLE 15.   MISCELLANEOUS..................................................12
         Section 15.1      Independent Contractor............................12
         Section 15.2      Taxes.............................................12
         Section 15.3      Assignment........................................12
         Section 15.4      Force Majeure.....................................12
         Section 15.5      Governing Law; Forum Selection....................13
         Section 15.6      Integration; Amendment............................13
         Section 15.7      Severability......................................13
         Section 15.8      Bankruptcy........................................13
         Section 15.9      Rights and Remedies...............................13
         Section 15.10     Waiver............................................14
         Section 15.11     Headings..........................................14
         Section 15.12     Counterparts......................................14

                                      -ii-

<PAGE>

                  GPR SYSTEM DEVELOPMENT AND LICENSE AGREEMENT

         THIS  AGREEMENT  (this  "Agreement")  is entered as of this 17th day of
December,  1996 by and between,  Power  Spectra,  Inc.,  with its offices at 919
Hermosa Court,  Sunnyvale,  California  94086 ("PSI"),  and LandRay  Technology,
Inc.,  with its  offices  at 235  Montgomery  Street,  San  Francisco,  CA 94104
("LandRay").

                                    RECITALS

         1. PSI owns 38% of the  common  stock of  LandRay,  which was formed to
fund and to use ground penetrating radar ("GPR") technology developed by PSI for
certain applications, specifically mining, mineral and petroleum exploration and
exploitation (the "Covered Uses").

         2. PSI and LandRay previously entered into an initial agreement for PSI
to demonstrate for LandRay the feasibility of a GPR system for the Covered Uses.

         3.  PSI  and  LandRay   now  desire  to  enter  into  a   comprehensive
development,  sale and license  agreement  providing for, upon  demonstration of
feasibility  of the GPR system for the Covered  Uses,  PSI to deliver to LandRay
certain  operational  GPR prototype  systems for the Covered Uses and LandRay to
pay PSI $3,000,000.

         NOW,  THEREFORE,  in consideration of the mutual covenants and promises
contained herein the parties agree as follows:

                                    AGREEMENT

ARTICLE 1.   DEFINITIONS

         Section  1.1  Capitalized  Terms.  The  following  terms shall have the
following meanings when used in this Agreement:

         "Agreement" means this agreement and all exhibits and schedules hereto.

         "Confidential   Information"   shall  mean  (i)  any   proprietary   or
confidential  information or material in tangible form disclosed  hereunder that
is marked as  "Confidential" at the time it is delivered to the receiving party,
or (ii) proprietary or confidential information disclosed orally hereunder which
is identified as confidential or proprietary  when disclosed and such disclosure
of  confidential  information is confirmed in writing within thirty (30) days by
the disclosing party.

         "Delivery  Timetable"  shall mean the  schedule for delivery of the PSI
Deliverables to be delivered by PSI to LandRay as set forth in Exhibit B hereto.



<PAGE>

         "Contract  Price" shall mean the payments  being made to PSI by LandRay
as set forth in Article 4 hereto.

         "GPR Know-How" shall mean all  confidential  information and materials,
including without limitation, trade secrets, instructions,  processes, formulas,
technology and technical information owned in whole or in part, or controlled by
license,  assignment or otherwise by PSI,  necessary for LandRay to exercise its
rights under Section 5.1 hereof.  GPR Know-How shall also include all copyrights
held or licensed by PSI  necessary  for  LandRay to  exercise  its rights  under
Section 5.1 hereof.  GPR Know-How shall not include any  inventions  included in
GPR Patents.

         "GPR Patents"  shall mean (i) the patents and patent  applications  set
forth  on   Exhibit  C  hereto  and  hereby   incorporated   herein,   (ii)  any
substitutions,  divisions, continuations,  continuations-in-part applications of
(i) above, (iii) any patents (and inventors  certificates)  issuing worldwide on
any of the preceding, including without limitation, reissues, reexaminations, or
extensions or confirmations,  registrations,  revalidations,  or additions, (iv)
any newly issued  patents issued to PSI for  inventions  reasonably  related and
necessary  for the  improvement  of the GPR  Products  or the  GPRS  and (v) any
copyrights with respect to PSI Deliverables.

         "GPR  Products"  mean (i) the  operational  prototype  GPRS (see "GPRS"
below)  referred  to in  Exhibit  B that  has all  the  material  functions  and
capabilities  of a  production  product  as set forth in  Exhibit A and (ii) all
improvements thereto and enhancements thereof.

         "GPRS" shall mean the prototype  Ground-Penetrating  Radar System being
developed hereunder.

         "GPR Technology" shall mean the GPR Know-How and the GPR Patents.

         "PSI  Deliverables"  means the  deliverables or milestones set forth on
Exhibit B to be delivered by PSI to LandRay, or completed by PSI as the case may
be, pursuant to this Agreement.

         "Specifications"  means the technical  specifications  for the GPRS set
forth in Exhibit A.

ARTICLE 2.   DELIVERABLES AND DEVELOPMENT

         Section 2.1  Development.  PSI will  develop and deliver to LandRay the
PSI  Deliverables in accordance with the  Specifications  set forth in Exhibit A
and the  Delivery  Timetable  set forth in  Exhibit  B,  respectively.  Each PSI
Deliverable will, upon delivery or completion,  conform in all material respects
to the Specifications set forth for such PSI Deliverables.

         Section 2.2 Changes. If LandRay desires a change in the Specifications,
LandRay  shall  submit a  written  change  order to PSI  which  includes  a full
description of the requested  change.  PSI will promptly review the change order
to determine the feasibility of the proposed  changes.  PSI will not be bound to
implement  the changes  until  LandRay has  received a copy of the change  order
signed by PSI's authorized representative.  If a change order issued by LandRay,
or the inaccuracy or incompleteness  of

                                      -2-

<PAGE>

technical or other information supplied to PSI by LandRay, causes an increase in
the amount of time or materials  necessary to deliver any PSI  Deliverable,  the
parties  shall  negotiate in good faith to make an equitable  adjustment  to the
Development Fee payable or the delivery dates for the affected PSI Deliverables.
PSI  specifically  reserves  the right to suspend  development  work pending the
negotiation of such a change.

         Section 2.3 Additional Development.  Additional development work may be
periodically  brought under this Agreement through the use of separate,  written
schedules agreed to and executed by the parties.

         Section 2.4 Project  Manager.  Each party  shall  designate  one of its
employees  to be its project  manager  (the  "Project  Manager").  Each  party's
Project Manager shall have direct  responsibility  for  coordinating the party's
activities  under this Agreement and interacting  with the other party's Project
Manager.  LandRay hereby  designates  Mike Rhode as its Project  Manager and PSI
hereby  designates Steve Davis as its Project Manager.  Project Managers of each
party shall meet as needed to review  progress and to resolve issues relating to
this Agreement.

         Section 2.5 Replacement of Project Managers.  Either party may, if good
cause exists therefor,  withdraw its approval of the other's Project Manager. If
a  party's  Project  Manager  is  unable to  continue  to serve due to  physical
disability or  termination of  employment,  or if the other party  withdraws its
approval of the Project  Manager,  the party shall  appoint a successor  Project
Manager,  subject to other's prior written approval,  which approval will not be
unreasonably withheld or delayed.

         Section 2.6 Commercial  Manufacture and Use.  Subject to Section 5.1(d)
hereof,  PSI shall be solely  responsible for the commercial  manufacture of the
GPRS referred to in Exhibit B hereto.  LandRay shall be solely  responsible  for
the use and application of the GPRS.


ARTICLE 3.   ACCEPTANCE PROCEDURE

         Section 3.1 Acceptance of Versions.

                  (a) Within 15 business  days after the  delivery to it of each
PSI Deliverable, LandRay shall inform PSI whether such PSI Deliverable meets the
Specifications  for such PSI Deliverable.  If LandRay  reasonably  believes that
such PSI Deliverable does not conform to the relevant  Specifications,  it shall
so inform PSI and provide PSI with details  regarding such failure and suggested
remedial  action.  PSI shall work  diligently  to remedy any such failure and to
return such PSI Deliverable to LandRay for acceptance.

                  (b) LandRay's failure to object to any PSI Deliverables within
15 business days of delivery shall be deemed acceptance of such PSI Deliverable.
In  addition,  LandRay's  release  of the  GPRS  for  general  distribution  and
marketing shall be deemed acceptance by LandRay of all PSI Deliverables.

                                      -3-

<PAGE>

                  (c) Failure of the any PSI  Deliverable to meet the applicable
Specification  after a reasonable number of attempts to remedy the failure under
Section 3.1(a), shall constitute a default by PSI.

         Section 3.2 Acceptance of Other  Deliverables.  The parties shall agree
upon reasonable tests and acceptance criteria for PSI Deliverables to the extent
that such tests and criteria are not included in Exhibit A.

         Section 3.3 Access.  PSI will provide LandRay with reasonable access to
PSI Deliverables at its facilities for inspection purposes during development.

         Section 3.4 Periodic Reports. PSI shall give LandRay periodic (monthly)
reports on progress toward  attainment of PSI  Deliverables (as shown on Exhibit
B).


ARTICLE 4.   CONTRACT PRICE

         Section 4.1 Contract Price.  LandRay will pay PSI the sum of $3,000,000
(three million  dollars) (the "Contract  Price") for the development of the work
to be performed  hereunder.  The Contract  Price shall be payable in  accordance
with  Exhibit D. All  payments  set forth in Exhibit D shall be due and  payable
within 3 business days of the event set forth therein.  The Contract Price shall
be allocated with $2,000,000  being paid for the prototype and $1,000,000  being
paid for the license.

         Section 4.2 Contract Price Adjustment.  LandRay and PSI agree to review
the progress  hereunder on a regular basis to assess  whether or not PSI's costs
are  exceeding  the Contract  Price.  In such event,  the Contract  Price may be
increased by mutual agreement of the parties.

         Section 4.3 Form of  Payment.  The  Contract  Price shall be payable in
U.S. dollars and in a manner reasonably agreed by the parties.


ARTICLE 5.   LICENSE, ROYALTIES AND OWNERSHIP RIGHTS

         Section 5.1 GPR Technology License.

                  (a) GPR  Technology  License.  PSI hereby grants to LandRay an
exclusive, worldwide, royalty-free,  non-transferable license, with the right of
sublicense,  under the GPR Patents and the GPR  Know-How to use the GPR Products
only for the following  applications:  mining, mineral and petroleum exploration
and  exploitation  (the "Licensed  Applications").  During the term hereof,  PSI
shall not grant any third  party any right  under the GPR Patents to use the GPR
Products  for the  Licensed  Applications.  Nothing in this  agreement  shall be
construed to:

                                      -4-

<PAGE>

                           (i) grant  LandRay any right under the GPR Patents or
GPR  Know-How  for mine  locating,  unexploded  ordnance  locating,  toxic waste
locating,  surveying  power  transmission  lines,  timber  cruising  or wildlife
control surveying; or

                           (ii) grant LandRay any right under the GPR Patents or
GPR Know-How other than with respect to the Licensed Applications; or

                           (iii) prevent the parties from  negotiating any other
contract, as appropriate, beyond the limitations of paragraph 5.1(a).

                  (b) PSI Improvements  License. PSI hereby grants to LandRay an
exclusive, worldwide, irrevocable, royalty-free license to use any improvements,
modifications,  enhancements and other  inventions or technology  related to the
GPR Products, GPR Patents, and/or GPR Know-How (the "PSI Improvements"), if any,
developed by PSI during the term hereof.

                  (c) Additional Uses. The licenses under this Section 5.1 above
may be extended to cover archeological applications if requested by LandRay from
time to time and  approved  in  writing  by PSI,  which  approval  shall  not be
unreasonably withheld,  provided no other relationship has been negotiated prior
to LandRay's request.

                  (d)  License  Grant  in  the  Event  of  Bankruptcy  of PSI or
Inability to Deliver PSI Deliverables. In the event (1) of any of the happenings
described in Section 7.3 of this Agreement following which LandRay elects not to
terminate  this  Agreement  or (2) that PSI  fails to  deliver  LandRay  the PSI
Deliverables  on the  timetable  set forth in Exhibit B or to deliver  any other
deliverable  agreed to in writing by the  parties  (any such  failure to deliver
being  subject  to the  45-day  cure  period  set forth in  Section  7.2 of this
Agreement) and LandRay elects not to terminate this Agreement,  then the license
granted to LandRay by PSI under  Section  5.1(a) and 5.1(b)  shall  include  the
right for  LandRay to make or have made the GPR  Products  for the  applications
covered  by such  license.  In such  event,  PSI  shall  assist  LandRay  in all
reasonable  respects for LandRay to exercise  its rights  under this  subsection
(d),  including  delivery  of any  required  technical  data to  LandRay  (which
disclosure shall continue to be covered by Section 6.1 of this Agreement).

         Section 5.2  Commercialization.  LandRay agrees to use every reasonable
effort  to make  commercial  use of the  licenses  granted  herein  to  generate
revenue.

         Section 5.3 Ownership.

                  (a) Ownership of PSI Deliverables.  Following  delivery of the
PSI Deliverables to LandRay and LandRay's full payment of the Contract Price and
other fees set forth in Article 4,  LandRay  shall take title to, and become the
exclusive owner of, the PSI Deliverables.

                  (b)  Ownership  of GPR  Technology.  Subject  to  the  license
contained in Section 5.1 above,  ownership of the GPR Patents, GPR Know-How, and
all  intellectual   property  rights  therein,

                                      -5-

<PAGE>

including without limitation,  copyrights,  patents,  trademarks, trade secrets,
mask works and other proprietary rights, shall remain exclusively with PSI.

                  (c)  Ownership  of PSI  Improvements.  Subject to the  license
granted to LandRay in Section 5.1(d) above,  ownership of PSI  Improvements  and
all  intellectual   property  rights  therein,   including  without  limitation,
copyrights, patents, trademarks, trade secrets, mask works and other proprietary
rights, shall remain exclusively with PSI.

         Section 5.4 Use of Third  Party  Materials.  PSI shall not  incorporate
into the PSI  Deliverables  any  materials  owned by third  parties  unless such
materials and their owners  (including the owners of any  intellectual  property
embodied  therein) are identified in writing to LandRay's  Project Manager,  and
PSI  either:  (i) has  sufficient  authority  to grant to LandRay the rights and
licenses  necessary to exploit the PSI Deliverables as contemplated  herein;  or
(ii) the owner of such materials has granted directly to LandRay such rights and
licenses.  PSI shall have sole  responsibility  for payment of all royalties and
other charges with respect to such third party materials,  including as they may
accrue  with  respect to  subsequent  use thereof by  LandRay,  its  affiliates,
customers, successors and assigns.

         Section 5.5 Information  About Third Party  Materials.  With respect to
third  party  materials  that are  identified  in writing to  LandRay's  Project
Manager,  PSI shall,  prior to incorporating  the same into the PSI Deliverables
either  provide to LandRay a copy of any  agreements or other  instruments  from
which PSI derives its authority to grant LandRay the rights contemplated herein,
or shall allow LandRay's  counsel to review such agreements or other instruments
on a  confidential  basis for the purpose of advising  LandRay  with  respect to
PSI's authority to grant LandRay such rights and licenses.


ARTICLE 6.   CONFIDENTIALITY

         Section 6.1  Confidential  Information.  Except as  expressly  provided
herein,  the parties agree that, for the term of this Agreement and for five (5)
years  thereafter,  the receiving party shall keep completely  confidential  and
shall not publish or otherwise disclose and shall not use for any purpose except
for the purposes  contemplated  by this Agreement any  Confidential  Information
furnished  to it by the  disclosing  party  hereto  pursuant to this  Agreement,
except that to the extent that it can be established  by the receiving  party by
competent proof that such Confidential Information:

                  (a) was already known to the receiving party, other than under
an obligation of confidentiality, at the time of disclosure;

                  (b) was generally available to the public or otherwise part of
the public domain at the time of its disclosure to the receiving party;

                  (c) became generally available to the public or otherwise part
of the public  domain  after its  disclosure  and other than  through any act or
omission of the receiving party in breach of this Agreement;

                                      -6-

<PAGE>

                  (d) was  independently  developed  by the  receiving  party as
demonstrated  by  documented  evidence  prepared   contemporaneously  with  such
independent development; or

                  (e) was subsequently lawfully disclosed to the receiving party
by a person other than a party.

         Section 6.2 Permitted Use and Disclosures. Each party hereto may use or
disclose  information  disclosed to it by the other party to the extent such use
or  disclosure  is  reasonably   necessary  in  filing  or  prosecuting   patent
applications,  prosecuting or defending  litigation,  complying with  applicable
governmental  regulations  or otherwise  submitting  information to tax or other
governmental authorities, or otherwise exercising its rights hereunder, provided
that if a party is  required  to make any such  disclosure  of  another  party's
Confidential Information, other than pursuant to a confidentiality agreement, it
will give reasonable  advance notice to the latter party of such disclosure and,
except to the extent inappropriate in the case of patent applications,  will use
its best efforts to secure  confidential  treatment of such information prior to
its disclosure (whether through protective orders or otherwise).

         Section 6.3 Public  Disclosure.  Except as  otherwise  required by law,
neither party shall issue a press release or make any other public disclosure of
the terms of this Agreement  without the prior approval of such press release or
public disclosure,  which shall not be unreasonably  withheld.  Each party shall
submit  any such  press  release  or  public  disclosure  to the  other  party a
reasonable  time prior to  dissemination  and the  receiving  party shall have a
reasonable opportunity to review and comment on such release or disclosure.


ARTICLE 7.   TERM AND TERMINATION

         Section 7.1 Term. The term of this Agreement shall commence on the date
on which LandRay obtains funding  sufficient to provide the payments as shown in
Exhibit D hereto and shall  continue for five (5) years (the  "Initial  Period")
from the date LandRay  accepts the  operational  prototype of the GPR  Products.
Upon the expiration of the Initial Period, this Agreement shall be automatically
renewed for successive  periods of one (1) year (each a "Renewal Period") unless
earlier terminated as authorized in this Section 7.

         Section 7.2  Termination  for Breach.  If either party  defaults in the
performance of its material obligations hereunder and if any such default is not
corrected  within  forty-five  (45) days after it shall have been  called to the
attention of the  defaulting  party,  in writing,  by the other party,  then the
other party, at its option,  may, in addition to any other remedies it may have,
thereupon  terminate  this  Agreement by giving written notice of termination to
the other party.

         Section 7.3  Termination  for  Insolvency.  If voluntary or involuntary
proceedings  by or  against  a party  are  instituted  in  bankruptcy  under any
insolvency  law, or a receiver or  custodian  is  appointed  for such party,  or
proceedings are instituted by or against such party for corporate reorganization
or the dissolution of such party, which proceedings,  if involuntary,  shall not
have been dismissed within sixty (60) days after the date of filing,  or if such
party makes an assignment for the benefit of creditors,  or

                                      -7-

<PAGE>

substantially  all of the assets of such party are  seized or  attached  and not
released  within  sixty (60) days  thereafter,  the other party may  immediately
terminate this Agreement effective upon notice of such termination.

         Section 7.4 Effect of Breach or Termination.

                  (a) Accrued Obligations. Termination of this Agreement for any
reason shall not release any party hereto from any liability  which, at the time
of such  termination,  has  already  accrued  to the  other  party  or  which is
attributable  to a period prior to such  termination  nor preclude  either party
from  pursuing  all rights and  remedies it may have  hereunder  or at law or in
equity with respect to any breach of this Agreement.

                  (b)  Return  of  Materials.   Upon  any  termination  of  this
Agreement,  LandRay  and PSI  shall  promptly  return  to the  other  party  all
Confidential Information received from the other party.

                  (c)  Reversion  of  Licenses.  Upon  any  termination  of this
Agreement,  all licenses granted hereunder (including any sublicenses granted by
a party hereto) shall terminate and revert back to the owner, except as provided
in Section 7.6 below.

         Section   7.5   Survival.   Section   5.3   (Ownership),    Article   6
(Confidentiality), Article 11 (Limitations on Warranties and Liability), Article
12 (Indemnification) and Article 15 (Miscellaneous) shall survive the expiration
or termination of this Agreement for any reason.


ARTICLE 8.   PSI NAME AND LOGO

         Section 8.1 PSI Logos.  LandRay shall include the PSI name and logo, in
a  manner  to  be  reasonably  agreed  between  the  parties:   (i)  in  product
documentation   included  with  the  GPR  Products;   (ii)  in  advertising  and
promotional materials associated with the GPR Products; and (iii) on the housing
of the GPR Products.

         Section  8.2  Copyright,  etc.  Notices.  LandRay  shall not  remove or
obscure  any  notices or  markings,  including  without  limitation,  copyright,
trademark,  or confidentiality  notices,  or ownership notices on any of the PSI
Deliverables.


ARTICLE 9.   PRODUCT SUPPORT

         Section 9.1 Post-Development Support.

                  (a) PSI shall  provide  reasonable  support and  assistance to
maintain  the GPR  Products  to the extent  and for fees as shall be  determined
mutually by the parties and as shall be specified in a writing  attached to this
Agreement.

                                      -8-

<PAGE>

                  (b) In addition,  PSI agrees to provide an annual  calibration
and system  checkout of the GPR  Products.  LandRay shall pay PSI a fee for such
services  which  shall be PSI's  cost of labor and  materials  to  provide  such
services plus 10% of such amount.


ARTICLE 10.   WARRANTIES AND SUPPORT

         Section 10.1  Warranties By PSI. PSI represents and warrants to LandRay
that:

                  (a) PSI is a corporation, duly organized, validly existing and
in good standing under the laws of the State of California;

                  (b) PSI has full power and  authority to execute,  deliver and
perform this Agreement;

                  (c) This  Agreement  has been duly  authorized,  executed  and
delivered  by PSI and is the  legal,  valid  and  binding  obligation  of PSI in
accordance with its terms;

                  (d) There is and will be no lien, claim or encumbrance on, and
there will be no such lien, claim or encumbrance on the PSI Deliverables;

                  (e) The  development of the PSI  Deliverables by PSI shall not
be performed in breach of any obligation of PSI to a third party or in violation
of any applicable law, rule or regulation;

                  (f) PSI shall have  obtained  all permits  necessary to comply
with such laws, rules and regulations applicable to its performance;

                  (g) To the  best of  PSI's  knowledge,  the  PSI  Deliverables
provided by PSI to LandRay hereunder do not and will not infringe the copyrights
or trade  secret  rights or patent  rights of any  third  party.  The  foregoing
warranty does not extend to any PSI deliverable to the extent that is the result
of  specifications  or  requirements  of  LandRay  or where  the  specifications
provided by PSI to LandRay are not followed if LandRay is manufacturing  the GPR
Products pursuant to Section 5.1(d) hereof.

         Section 10.2 Warranties By LandRay.  LandRay represents and warrants to
PSI that:

                  (a) LandRay is a corporation, duly organized, validly existing
and in good standing under the laws of the State of Delaware;

                  (b) LandRay has full power and  authority to execute,  deliver
and perform this Agreement;

                  (c) This  Agreement  has been duly  authorized,  executed  and
delivered by LandRay and is the legal,  valid and binding  obligation of LandRay
in accordance with its terms;

                                      -9-

<PAGE>

         Section 10.3 Product Warranties by PSI.

                  (a) PSI warrants to LandRay that,  for a period of ninety (90)
days from the date of  delivery  by PSI,  the PSI  Deliverables  will be free of
material defects and will materially  conform to  Specifications.  Such warranty
shall not apply if any of the PSI  Deliverables are damaged through improper use
or LandRay's fault or negligence or if LandRay is manufacturing the GPR Products
pursuant to Section 5.1(d) hereof.

                  (b) LandRay's sole and exclusive  remedy for any breach of the
foregoing  warranty by PSI is to have PSI replace the defective PSI  Deliverable
at no cost to LandRay.

         Section  10.4  No  Warranties  to  Third  Parties.  PSI  shall  not  be
responsible for any claim by, or warranty to, any sublicensee or user of the GPR
Products  from LandRay or any third party,  based on or alleging that there is a
defect in the GPR  Products,  and LandRay  hereby  agrees to indemnify  and hold
harmless PSI against all cost  damages and  expenses  that may arise out of such
claim.  PSI shall not be  responsible  for any  warranty  made by LandRay to any
third party, including sublicensees or users of the GPR Products.


ARTICLE 11.     LIMITATIONS ON WARRANTIES AND LIABILITY

         Section 11.1 Warranty Limitation.

                  (a) EXCEPT AS SET FORTH EXPRESSLY IN THIS  AGREEMENT,  THE PSI
DELIVERABLES ARE PROVIDED TO LANDRAY ON AN "AS IS" BASIS.

                  (b)  EXCEPT AS SET FORTH  EXPRESSLY  IN THIS  AGREEMENT,  EACH
PARTY EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES AND CONDITIONS, EXPRESS, IMPLIED,
OR STATUTORY, INCLUDING THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY,
NONINFRINGEMENT,  FITNESS FOR A  PARTICULAR  PURPOSE,  SUITABILITY  FOR PURPOSE,
SATISFACTORY QUALITY,  PRODUCT LIABILITY AND THEIR EQUIVALENTS UNDER THE LAWS OF
ANY JURISDICTION.

         Section 11.2 Liability Limitations.

                  (a) IN NO  EVENT  SHALL  PSI'S  LIABILITY  OR  OBLIGATIONS  TO
LANDRAY  UNDER THIS  AGREEMENT,  INCLUDING  UNDER  SECTION  10.3 AND ARTICLE 12,
EXCEED THE CONTRACT PRICES ACTUALLY RECEIVED BY PSI FROM LANDRAY.

                  (b) IN NO EVENT,  INCLUDING,  WITHOUT LIMITATION,  PURSUANT TO
ARTICLE 12, SHALL EITHER LANDRAY OR PSI BE LIABLE FOR ANY  INCIDENTAL,  SPECIAL,
OR CONSEQUENTIAL  DAMAGES,  OR DAMAGES FOR LOST PROFITS,  REVENUE,  DATA OR USE,
INCURRED BY EITHER PARTY OR ANY THIRD PARTY, WHETHER IN AN

                                      -10-

<PAGE>

ACTION IN  CONTRACT  OR TORT,  EVEN IF THE OTHER  PARTY HAS BEEN  ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.


ARTICLE 12.   INDEMNIFICATION

         Section 12.1  Indemnification.  Each party shall indemnify,  defend and
hold the other and its affiliates,  and their  respective  officers,  directors,
employees,  shareholders,  agents,  successors,  representatives,  and permitted
assigns,  customers,  and  sublicensees  harmless  against  any and  all  claims
relating  to any  breach or claimed  breach of any  representation  or  warranty
contained herein.  The parties  acknowledge and agree that the  representations,
warranties  and  indemnities  set forth  herein,  shall extend to the  foregoing
parties,  and the  indemnifying  party  shall be liable to the same extent as if
such  representations,  warranties and indemnities were made by the indemnifying
party directly to such parties. In addition,  LandRay agrees to indemnify,  hold
harmless and defend (with counsel free of any conflict of interest  between such
counsel  and PSI or any  other  indemnitee  hereunder)  PSI  and its  directors,
officers,  employees,  agents  and  subsidiaries  from and  against  any and all
claims,  allegations,  proceedings,  losses,  liabilities,  costs  and  expenses
(including  reasonable attorneys' fees) arising out of or in connection with the
use or (if LandRay is manufacturing  the GPR Products pursuant to Section 5.1(d)
hereof) the  manufacture  of GPR Products  thereof  (other than as a result of a
breach of a warranty made by PSI hereunder).

         Section 12.2  Conditions on Indemnity.  Each party shall  indemnify the
other parties as set forth in this Article 12 provided that: (i) the indemnified
party notifies the indemnifying party promptly in writing of the claim; (ii) the
indemnifying  party has sole  control of the defense and all related  settlement
negotiations with respect to the claim; provided, that the indemnified party has
the right,  but not the  obligation,  to  participate in the defense of any such
claim  through  counsel of its own  choosing;  and (iii) the  indemnified  party
cooperates fully to the extent necessary,  and executes all documents  necessary
for the defense of such claim.


ARTICLE 13.   FUTURE PRODUCTS

         This  Agreement  governs the rights of the parties  with respect to the
delivery of the GPR Products only. However,  because PSI may continue to develop
improvements  to and upgrades of the GPR  Products,  PSI shall offer the same to
LandRay for purchase.  In addition,  PSI shall accept all of LandRay's  purchase
orders to purchase  additional  GPR Products for delivery as soon as  reasonably
possible  as long as such  purchase  orders  are in PSI's  standard  terms.  The
parties  presently  contemplate  that the current GPR  Products and the upgraded
versions of those GPR Products shall cost  approximately [*] (in the case of the
Seeker) and [*] (in the case of the Imager). However, the parties agree that the
actual cost of future GPR Products  shall be  determined by the parties prior to
the time of delivery and shall  reflect  both PSI's actual  direct costs of such
GPR  Products  and a  reasonable  profit  margin.  Any  maintenance  or  support
obligations with respect to shall be determined by agreement between the parties
and not by Article 9 hereof.

- ----------
*    Confidential treatment has been requested as to portions of this agreement.

                                      -11-

<PAGE>

ARTICLE 14.   NOTICES

         All notices, consents and approvals given under this Agreement shall be
in writing and shall be delivered  in person,  by first class or express mail or
facsimile addressed as follows:

   If to PSI:                                     If to LandRay:
   ----------                                     --------------

   Power Spectra, Inc.                          LandRay Technology, Inc.
   919 Hermosa Court                            235 Montgomery Street, Suite 807
   Sunnyvale, California  94086                 San Francisco, CA 94104
   Attn.:  Mr. Gordon H. Smith                  Attn.:  Bill Cormack

   Telephone:        (408) 737-7977             Telephone:        (415) 433-6930

Either  party may  change its  address or  addressee  for the  purposes  of this
Article 14 by notice.  Notice given in accordance  with this Article 14 shall be
deemed given when received.


ARTICLE 15.   MISCELLANEOUS

         Section 15.1 Independent  Contractor.  PSI is an independent contractor
for all purposes in the performance of this Agreement,  including any continuing
support or maintenance obligations. PSI warrants to LandRay that it will fulfill
all of its legal obligations for payroll taxes, worker's compensation  insurance
and other employer obligations,  and will hold LandRay harmless from any failure
to do so. Neither party shall have any authority to enter into agreements of any
kind on behalf of the other,  and  neither  party  shall have any other power or
authority to bind or obligate the other in any manner to any third party.

         Section  15.2 Taxes.  LandRay  will be  responsible  for payment of any
sales,  excise, or use taxes,  including any interest and penalties,  imposed by
any  governmental  authority  upon use or sale by LandRay of the GPR Products or
any other  products of LandRay,  the products  developed  hereunder,  or on this
Agreement.

         Section 15.3  Assignment.  This Agreement may not be assigned by either
party,  including  to a parent,  subsidiary  or  successor  in  interest  to its
business,  without the express, written consent of the other party which consent
shall not  unreasonably be withheld or delayed.  Any potential  assignee must be
able to fulfill all obligations of the assignor. This Agreement shall be binding
upon,  and inure to the benefit of, the parties and their  permitted  respective
successors and permitted assigns.

         Section 15.4 Force  Majeure.  If by reason of labor  dispute,  strikes,
inability to obtain labor or  materials,  fire or other action of the  elements,
accidents,  governmental  restrictions or appropriation or other causes, whether
like or unlike the foregoing,  beyond the control of a party hereto,  such party
is  unable  to  perform  in whole or in part its  obligations  set forth in this
Agreement,  then such party shall be relieved of those obligations to the extent
it is so unable to perform and such inability to perform,  so

                                      -12-

<PAGE>

caused,  shall not make such party liable to the other party.  The party subject
to an event of force  majeure  shall use good faith efforts to comply as closely
as possible with the  provisions  of this  Agreement and to avoid the effects of
such event to the extent possible.

         Section 15.5 Governing Law; Forum  Selection.  This Agreement  shall be
governed by the laws of the State of California,  U.S.A., without regard to that
state's laws  concerning  conflicts or choice of laws.  The 1980 United  Nations
Convention on Contracts for the  International  Sale of Goods shall not apply to
this  Agreement.  The  parties  hereby  consent  and  submit  to  the  exclusive
jurisdiction  of the state and federal  courts  located in Santa  Clara  County,
California with respect to any disputes arising under or in connection with this
Agreement.  Each Party hereby waives any right that it might  otherwise  have to
object to such venue or seek  dismissal  of the action on the basis of forum non
conveniens.  In the event of litigation  under this  Agreement,  the  prevailing
party shall be reimbursed for reasonable legal costs and expenses.

         Section 15.6  Integration;  Amendment.  This Agreement and any exhibits
and  writings  attached  hereto or  contemplated  hereby  constitute  the entire
understanding  of the  parties  with  respect to the subject  matter  hereof and
replaces, supersedes and cancels all prior representations,  assurances, courses
of dealing,  agreements and undertakings,  whether written or oral, between them
concerning such subject  matter.  This Agreement may not be modified except by a
writing signed by authorized representatives of both LandRay and PSI.

         Section  15.7  Severability.  If any  provision  of this  Agreement  or
portion thereof is held to be unenforceable or invalid by any court of competent
jurisdiction,  such  provision or portion shall be deemed  amended to conform to
applicable law so as to be valid and enforceable or, if the provision or portion
cannot be so amended  without  materially  altering  the  parties'  intent,  the
provision  or  portion   thereof  shall  be  stricken,   and  the  validity  and
enforceability of the remainder of this Agreement shall not be affected thereby.

         Section   15.8   Bankruptcy.    PSI   agrees   that   if   PSI   as   a
debtor-in-possession  or if a trustee  in  bankruptcy  rejects  this  Agreement,
LandRay may elect to retain its rights under this  Agreement  as provided  under
Section 365(n) of the Bankruptcy Code (or any successor  thereto).  Upon written
request of LandRay to PSI or the  trustee  in  bankruptcy,  PSI or such  trustee
shall allow LandRay to exercise its rights under this  Agreement  (including its
rights under Section  5.1(d)  hereof) and shall not interfere with the rights of
LandRay as provided in this  Agreement.  PSI further  agrees that LandRay  shall
maintain  exclusive  rights to GPR Technology under the terms of this Agreement,
even if PSI should cease operations, be purchased or merge.

         Section  15.9  Rights  and  Remedies.  The  various  rights,   options,
elections,  powers and remedies of a party to this Agreement  shall be construed
as cumulative,  and no one of them exclusive of any others or of any other legal
or equitable remedy which such party might otherwise have in the event of breach
or default with  respect to the terms  hereof  (except to the extent a remedy in
this Agreement is expressly made an exclusive remedy). The exercise of one right
or remedy by a party or parties shall not impair its right to any other right or
remedy.

                                      -13-

<PAGE>

         Section  15.10  Waiver.  No  waiver  by  either  party  of any  breach,
provision or default by the other shall be deemed a waiver of any other  breach,
provision or default.

         Section 15.11  Headings.  Headings  contained in this Agreement are for
ease of reference only and shall have no legal effect.

         Section  15.12   Counterparts.   This  Agreement  may  be  executed  in
counterparts,  both of  which,  taken  together,  shall  constitute  one  single
agreement between the parties.


         WHEREFORE,  the parties  have signed this  Agreement  on the date first
written above.


POWER SPECTRA, INC.                                  LANDRAY TECHNOLOGY, INC.


By:    /s/ Gordon H. Smith                              By:  /s/ M. W. Rhode
    ---------------------------                           ----------------------
Name:  Gordon H. Smith                                Name:  M. W. Rhode
    ---------------------------                           ----------------------
Title: Chairman and CEO                              Title:  President & CEO
    ---------------------------                           ----------------------
                                                             Dec. 17, 1996
                                      -14-

<PAGE>



                                    EXHIBIT A

                            TECHNICAL SPECIFICATIONS


<PAGE>

                                    Exhibit A                            12/5/96
                            Performance Specification
                     With Preliminary Equipment Descriptions
             "Seeker" and "Imager" Ground-Penetrating Radar Systems

1.0   Introduction and Purpose

This document  describes  requirements  for two, related  electronic  units. The
simpler unit is the  "Seeker," a hand-held  ground-penetrating  radar (GPR) that
produces a narrow probe beam using  synthetic-aperture  techniques.  The second,
the "Imager,"  operates  similarly to the Seeker,  but gathers radar data from a
number of measurement positions to synthesize a three-dimensional radar image of
the area being surveyed.

The  intended  use of the  Seeker  and  Imager is to find and  precisely  locate
high-grade  metallic ore body  deposits  within the walls of mine  tunnels.  The
principle of operation is the  relatively  high  reflection  of  electromagnetic
radiation from electrical conductors.  The specified radar shall nominally be of
the ultra-wideband impulse type.

2.0   Seeker Radar Performance Requirements

[*]   This target is referred to herein as the "Standard Wire Target," or SWT.

2.1   Detection  Range.  The SWT shall be  detectable at a range of at least 6 m
      (20 ft) with a  signal-to-clutter  ratio  of at  least +3 dB.  This may be
      demonstrated  by a  detection  range  in  air  of at  least  30 m  with  a
      signal-to-noise ratio of at least +3 dB, regardless of SWT orientation.

2.2   Synthesized Beamwidth.  The processed beamwidth of the radar shall be less
      than 3 degrees  (3-dB  points).  This beam  shall be  coincident  with the
      mechanical  axis of the Seeker  within  +/- 1 degree.  Side and back lobes
      shall be at least 15 dB down from the main beam.

2.3   Range Resolution. The range (axial) resolution of the radar shall be 10 cm
      (4 in) or better in  quartz.  This may be  demonstrated  in air with 19 cm
      (7.5 in) or better resolution performance.

2.4   Articulation Method. Antenna articulation shall be automated, as initiated
      by the operator depressing a "Capture" button on the unit.

2.5   Scanning Time. A complete reading shall be captured in 2 sec or less.

2.6   Pointing  Requirements.  In order to achieve  specified  performance,  the
      operator  shall  maintain  the  position  of the  Seeker  to  within 1 cm,
      relative to the radiating  aperture of the radar, and the Seeker boresight
      axis  within  +/- 1 deg of  the  intended  viewing  direction  during  the
      scanning

- ----------
*    Confidential treatment has been requested as to portions of this agreement.

                                   PROPRIETARY

                                      -A1-

<PAGE>

      capture time.

2.7   Standoff Capability.  The Seeker shall operate within  specifications with
      the  radiating  aperture  face at any standoff  distance from the air-soil
      interface (tunnel wall) between 0 and 15 cm (6 in).

2.8   Dynamic Range. The radar dynamic range shall be at least 60 dB.

2.9   Polarization.  The  baseline  polarization  format  shall  be  V-V.  Cross
      polarization  shall be considered,  evaluated and adopted if a significant
      performance advantage.  The merits of a switchable polarization capability
      shall also be assessed.

3.0   Data Handling and Display

3.1   Data Display.  Processed  radar data shall be displayed in "A-scan" format
      (amplitude  vs. range) on an LCD or similar  flat-panel  display  integral
      with the unit. A stacking mode, in which at least five  consecutive  scans
      can be simultaneously displayed,  shall be implemented.  The display shall
      be easily viewable under a variety of conditions, from full sunlight (with
      glare shield, if required) to total darkness.

3.2   Aural  Indicator.  An aural  indication of targets shall be provided.  The
      nature of this indication is beyond the scope of this document and left to
      the  imagination of the designer.  One suggestion is to format the data so
      that  frequency  represents  range and  audio  strength  signal  strength.
      Another is that  range is  represented  by a  time-phased  audio  sequence
      following a "ping" or other  distinctive  aural  indicator.  In this case,
      frequency could represent signal strength.

3.3   Data  Records.  The  Seeker  shall  automatically  store up to 10  capture
      records  for later  "instant  replay"  recall  using  simple,  front-panel
      commands.  The  complete  data  history  of the unit shall  available  for
      archive on a standard personal computer over an RS-232 data link.

4.0   General Operational Considerations and Requirements

4.1   Operator  Requirements.  The Seeker  shall be operable by a single  person
      working in a confined environment.

4.2   Viewing Direction. The Seeker shall be designed to accommodate any viewing
      direction.

4.3   Carrying and  Transport.  The design shall  facilitate  easy  carrying and
      transportation  without a carrying case in a dirty,  wet  environment.  In
      general, extreme ruggedness with light weight are required.

4.4   Protective  Covers.  The Seeker  shall  include a  waterproof,  protective
      dielectric  window  at  the  radiating  aperture.   An  easily  removable,
      water-resistant cover shall also be provided to protect the Seeker display
      and controls when not in operation.

                                  PROPRIETARY

                                      -A2-

<PAGE>

4.5   Surface  Treatments and Finishes.  Surfaces and finishes shall be selected
      for  durability  and  corrosion  resistance.  Ease of cleaning and general
      equipment  maintainability  in the underground mining environment shall be
      strongly considered in the packaging design.

5.0   Mechanical

5.1   Size.  The Seeker shall be no more than 91 cm (36 in) long,  40 cm (16 in)
      wide,  and 40 cm  (16  in)  high,  including  integral  display.  This  is
      exclusive  of an  optional,  auxiliary  battery  pack as described in 5.3,
      below.

5.2   Weight.  The Seeker shall weigh no more than 10 kg (22 lbs),  exclusive of
      an optional, auxiliary battery pack as described in 5.3, below.

5.3   Auxiliary  Battery  Pack. A separate  battery pack is  permissible,  if it
      results in  significant  increase of utility.  Such a unit shall be fitted
      into a carrying harness for portability.  Weight shall not exceed 7 kg (15
      lbs).  The power cable  between the battery  pack and the Seeker  shall be
      easily disconnected.  With the battery pack disconnected, the Seeker shall
      maintain  its  memory  and  operating  configuration  automatically  in  a
      nonoperating, standby state for a period of at least two hours.

6.0   Electrical

6.1   Power  Source.  The Seeker  shall be capable of  operating  from  internal
      batteries (see Section 5.3) or from an external power source of between 10
      and 30 Vdc.

6.2   Operating  Time.  The  Seeker  shall be capable  of  operating  within the
      requirements of this  specification  without battery recharge for a period
      of at least four hours,  assuming an average of one capture  sequence  per
      minute over that time period.

7.0   Environmental

7.1   Operating  Temperature  Range.  The Seeker  shall be capable of  operating
      within the requirements of this specification over an ambient  temperature
      range of -10 to +50 deg C.

7.2   Storage Temperature Range. The Seeker shall be capable of storage,  for an
      indefinite period of time, without damage, over a temperature range of -40
      to +60 deg C.

7.3   Humidity.  The Seeker  shall be capable of operating  without  performance
      degradation over a relative humidity range of 0 to 100 percent,  including
      condensation.

7.4   Immersion.  The Seeker need not be capable of  operating  in or  surviving
      immersion in water,  except as follows:  The Seeker shall tolerate without
      damage (other than cosmetic)  being placed in standing water up to 8 cm (3
      in) deep with the radiating aperture pointed  downwards.  The Seeker shall
      be capable of taking radar data under this condition, although performance
      is not

                                  PROPRIETARY

                                      -A3-

<PAGE>

      specified due to the  unanalyzed  effects of the  high-dielectric-constant
      water layer.

7.5   Shock. The Seeker shall survive, while operating and in any orientation, a
      free-fall  of up to 1 m (3.3 ft) onto a flat  concrete  surface.  Cosmetic
      damage is allowed.

7.6   Vibration.   The  Seeker  shall  survive   (nonoperating)  without  damage
      vibration levels associated with ground and commercial airborne transport,
      including ground transportation over unpaved roadways. A suitable carrying
      and/or packing case may be provided to ensure this capability.

7.7   Altitude.  The  Seeker  shall  operate  within  the  requirements  of this
      specification  over an  altitude  range of  -1500 m (-5000  ft) to +3000 m
      (10,000 ft) MSL. Note:  The high negative  altitude  requirement  reflects
      operation in deep mine shafts.

7.8   Dust and Dirt.  The Seeker shall be capable of operation  and storage in a
      dirty environment typical of underground mining conditions.

8.0   Electromagnetic Compatibility

In  order  to  maximize   impulse   radar   performance,   no   constraints   on
electromagnetic  radiation are imposed. The designer,  however, is encouraged to
provide a Seeker that  minimizes  impact on other  equipment  such as radios and
televisions,  without compromising performance. A pseudo-random pulse repetition
rate (PRF) is suggested, for example.

9.0   Safety

The Seeker shall expose the operator to voltages no greater than 50 V. All sharp
edges shall be covered with  cushioning  or other  treatment  that will preclude
operator injury during handling and transportation.  If batteries with explosive
potential are used, they shall be packaged with a containment barrier. Batteries
shall be selected that do not vent hydrogen or other  flammable  gas. The Seeker
shall not emit x-rays.

10.0  Reliability

The Seeker  shall be  capable  of  operating  within  the  requirements  of this
specification  with a mean time between  failures  (MTBF) of at least 200 hours.
Scheduled, preventative maintenance every 200 hours or longer is allowable.

11.0  Imager Unit

11.1  General. The Imager is an extension of the Seeker concept.  Basically,  it
      is a Seeker with the addition of two elements:

[]    [*] that  determines the attitude and position of the Seeker relative to a
      starting position.

- ------
* Confidential treatment has been requested as to portions of this agreement.

                                  PROPRIETARY

                                      -A4-

<PAGE>

      []  An  external   data-processing  computer  (with  display)  to  provide
          extracted image information.

      In operation,  the Imager provides a 3-D image of a volume of earth. Image
      data is gathered by taking  multiple  capture shots at multiple  positions
      over an area  roughly  the  height and width of the  desired  depth of the
      image.  Most  operational  parameters  such as the pattern of positioning,
      number of shots at each position,  and required survey area,  remain to be
      specified.

11.2  [*].  An [*]  shall be  incorporated  into the  provide  Imager.  It shall
      provide [*] axes of  attitude  information,  relative to a manually  keyed
      starting position,  accurate to [*] over a period of [*] provided that the
      Imager is moved no farther than [*] from its starting position during this
      time.  Similarly,  the [*] shall provide [*] axes of position  information
      under these conditions with an accuracy of [*].

11.3  Imaging Computer.  A computer shall be included in the Imager system. This
      computer  shall be separate  from the Seeker head and connected to it by a
      cable.  Nominally,  a commercially  available,  standard "laptop" computer
      shall be used.

11.4  Performance.   Performance  shall  be  based  on  the  Seeker  performance
      characteristics  as defined in Section  2.0.  Image  quality and  utility,
      traded off against number of data-gathering positions, shall be determined
      during the development cycle of the Imager.

11.5  Data Handling and Display. These parameters are left to the designer using
      a  standard  computer  format.   The  Seeker  data  handling  and  display
      parameters  (Section  3.0)  shall  be  retained  in the  Imager,  with the
      addition of a disable function if trials determine that the Seeker display
      format interferes with utility in the Imager mode.

      A wireless (radio or infrared) data link between the Imager head (upgraded
      Seeker)  and the  associated  computer  shall be strongly  considered  and
      implemented if developed commercial modules can fulfill this function.

11.6  General Operating Considerations. The requirements of Section 4.0 apply to
      the Imager head  (upgraded  Seeker),  except that up to two persons may be
      required to operate the system  (exception  to 4.1).  Sections 4.3 through
      4.5 are goals for the associated computer.  The Imager shall be capable of
      operation  as a Seeker,  fully  meeting the  requirements  of sections 2.0
      through 10.0, inclusive.

11.7  Mechanical.  All  requirements  of Section  5.0 apply to the  Imager  head
      (upgraded  Seeker),  with  the  exception  that  the  weight  (Para.  5.2)
      allowance is increased to 11 kg (24 lbs).  No weight or size  requirements
      are imposed on the associated  computer,  other than the  generalities  of
      Section  4.0. A ruggedized  laptop is expected to prove  adequate for this
      application.

- ------
* Confidential treatment has been requested as to portions of this agreement.

                                  PROPRIETARY

                                      -A5-

<PAGE>

11.8  Electrical. All requirements of Section 6.0 apply to the Imager, including
      the associated computer.

11.9  Environmental.  All requirements of 7.0 apply to the Imager head (upgraded
      Seeker).  Environmental  requirements  for  the  associated  computer  and
      display are to be determined, depending on the performance characteristics
      of available commercial hardware.

11.10 Electromagnetic  Compatibility.  The  requirements  (or lack  thereof)  of
      Section 8.0 apply to the Imager,  with the  addition  that the Imager head
      and  computer  must be  mutually  compatible  in terms of  electromagnetic
      emissions and susceptibilities.

11.11 Safety. The requirements of Section 9.0 apply to the Imager.

11.12 Reliability. The requirements of Section 10.0 apply to the Imager.

                                  PROPRIETARY

                                      -A6-

<PAGE>


                                    EXHIBIT B

                                PSI DELIVERABLES


<PAGE>


                                    Exhibit B                           12/5//96
                                  Program Plan
                                 LandRay Phase 3

1.0   Overview

The main  purpose of the  LandRay  Program,  as defined in phases 1 and 2, is to
provide equipment for the detection and  identification of mineral ore deposits.
The baseline scenario of operation is handheld  instrumentation operated in mine
tunnels. The baseline mineral sought is gold. A secondary goal of the Program is
to conduct a  feasibility  study and  proof-of-principle  experiments  regarding
borehole   tomography.   The   method  of  remote   sensing   in  all  cases  is
ground-penetrating radar using synthetic-aperture techniques.

The Program is divided into three elements.  Elements 1 and 2 are concerned with
two tunnel-based  portable  sensors,  herein  dubbed the "Seeker" and  "Imager."
Element 3 is the  borehole  work,  which will follow the first two elements on a
noninterference  basis.  The  bulk of the  Program  concerns  elements  1 and 2.
Although there is little hardware commonality between the first two elements and
the last, it is expected that software  developments from the first two elements
will have a significant, favorable impact on the performance of Element 3.

The Seeker is the core instrument of the baseline (elements 1 and 2) program. It
is an ultra-high bandwidth, impulse radar operating in the microwave regime. The
Seeker contains all elements of a complete radar system--transmitter,  receiver,
antennas, signal processing and display--in a handheld unit that can be operated
and  transported in typical ore mine  conditions.  [*].  Depending on conditions
within the mine wall, useful information at penetration depths exceeding 4 m may
be obtained.

Element 1 realizes a small quantity of prototype  Seekers  ultimately useful for
pilot  revenue-gathering work in ore mines worldwide.  The full potential of the
Seeker concept will not be quantified until representative field trials are run.
By taking  multiple  "snapshots"  into the mine wall,  with the Seeker placed at
different,  controlled positions for each shot,  synthetic-aperture  data may be
gathered  suitable for  reduction  into full,  3-D images.  Such  capability  is
expected to greatly enhance the utility of the Seeker concept and realization of
such  imaging is the purpose of Element 2. In order to make the  imaging  Seeker
("Imager")  practicable in the difficult  tunnel  environment,  the basic Seeker
will be [*] that will autonomously communicate to the Seeker's signal processing
the  relative  position of the Seeker for each shot of an  image-gathering  data
suite.

Integral  with  elements 1 and 2 is an ongoing  phenomenology  support  program,
initiated in Phase 2, that  emphasizes the use of  nondeliverable  developmental
hardware  for data  gathering.  The Gentry Radar Test Bed (GRTB) was of enormous
value in Phase 2 in  establishing a solid  technical  baseline  regarding  radar
performance  and  optimization  in an easily  accessible  and  relatively  ideal
environment.  This  system  is  designed  to take  wide-area  radar  data from a
horizontally-oriented

- ------
* Confidential treatment has been requested as to portions of this agreement.

                                   PROPRIETARY

                                      -B1-

<PAGE>

test area such as a sandpit. The availability of a sophisticated test sandpit at
the  Venture 4 Mining  facility,  less than three  hours'  drive  from PSI,  has
greatly increased the value of this methodology.

A second  development  tool,  which, at this writing,  has been designed but not
fabricated,  is the Scissors Radar Test Bed (SRTB).  This is an extension of the
GRTB, on a smaller scale, and with vertical scanning,  suitable for field trials
in mine tunnels. This unit represents a "development  friendly" step between the
GRTB and Seeker and Imager concepts.

Element  3  is  the   investigative   borehole   work.   Single   borehole   and
borehole-borehole  measurements will be made using impulse radar. The purpose of
the  investigation is to quantify the utility of selected radar concepts in this
application.  The minimum goal is to reduce the number of boreholes  required to
accurately  map ore  bodies.  The  initial  part of Element 3 will  include  the
generation of a Test Plan to quantify the work to be done.

An overview of the proposed  program is given in the flowcharts of figures 1.0-1
and 1.0-2.

2.0   Management Plan

The  Program  will be led by a  full-time  Program  Manager,  who will also make
significant  technical  contributions to the effort.  As Program  Manager,  this
individual  shall  be  responsible  for  overall  program   planning,   critical
decisions,  and day-to-day  running and  monitoring of the Program.  Mr. Stephen
Davis,  Program Manager on Phase 2, will continue as Program Manager on Phase 3.
The Program  Manager will be assisted by a Project  Engineer,  who will take the
technical lead on the Program. Mr. Frederick Beckner of Cyberdynamics, Inc. will
fill this roll on an interim  basis,  until PSI hires a full-time  Radar Systems
Engineer.  Part-time administrative assistance will also be provided the Program
Manager.  Two major  subcontracts  are planned.  The first is to  Cyberdynamics,
Inc., which was  instrumental in the successful Phase 2 development.  The second
is to Pacific  Consultants,  Inc.,  which will be responsible for mechanical and
electronic packaging.

3.0   Deliverables

3.1   Hardware

      Quantity 2 Seeker Units, with all necessary  ancillary hardware and cables
      for operation in a mine tunnel environment

      Quantity 1 Imager Unit, incorporating the prototype basic Seeker Unit

3.2   Documentation

      Operating Manual for basic Seeker Unit

      Final Test Report for basic Seeker Unit

                                  PROPRIETARY

                                      -B2-

<PAGE>

                           Seeker/Imager Development
                                 Elements 1 & 2

                                  Figure 1.0-1

Flow chart illustrates the inter-relationship of the proposed GPR System.





                                      -B3-

<PAGE>

                         Borehole Tomography Evaluation
                                   Element 3

                                  Figure 1.0-2

Flow chart illustrates the test evaluation procedures.





                                      -B4-

<PAGE>

      Preliminary Operating Manual for Imager Unit

      Final Test Report for Imager Unit

      Final Report on borehole radar tomography experiments

      Monthly Reports  throughout  Program duration  covering  programmatics and
technical highlights

4.0   Work Plan Summary

An outline of the preliminary Work Breakdown Structure is provided in Attachment
1. Estimated pricing is are included in summary form, as well.

4.1   Basic Seeker Unit Development

This  task  evolves  the  basic  concepts  explored  in  Phase 2 into  operable,
fieldable units with the goal of using them for ore body  exploration on a pilot
basis.  The first  major  task is Radar  Systems  Engineering,  under  which the
requirements  for the basic Seeker Unit are  defined.  This process will involve
additional  hardware  testing (in excess of those done under Phase 2), using the
Gantry  Radar Test Bed (GTRB).  Performance  analyses  and  predictions  will be
conducted.  Documentation will include performance and equipment  specifications
and  test  plans  for  hardware  checkout.  Cyberdynamics  Inc.  will be a major
subcontractor to this task.

Once the basic Seeker Unit is defined,  a Hardware  Design phase will  commence.
Elements  include  transmitter,   receiver,  antennas,  computational  hardware,
display,  controls,  and power  conditioning.  An overall package design will be
carried  out.  In a parallel  effort,  the system  Software  will be defined and
written. Special Test Equipment will also be defined and generated in support of
this task.

A First Article  Prototype  will then be built and checked out. Once the unit is
tested in the laboratory,  sandbox trials will be run. Finally, full-scale field
trials will be conducted at selected sites to assess general  performance in the
field and the  unit's  ability  to detect  ore  bodies.  An  iteration  phase is
planned,  where the unit will undergo upgrades before returning for verification
assessment in the field. A Final Report will document the performance, perceived
utility and recommendations arising from the experience with the prototype.

Once the first  article  is  complete,  two  Follow-on  Units  will be built and
checked out. These will then be available for extended field work, preferably of
a revenue-gathering nature, outside the scope of LandRay Phase 2.

4.2   Imaging Prototype

The  development  process for the Imaging  Seeker Unit (Imager)  prototype  will
follow a

                                  PROPRIETARY

                                      -B5-

<PAGE>

development  path similar to the basic units,  and  will have available for this
task the First  Article  Prototype  from the  previous  major task  element.  As
before,  Radar Systems Engineering will be conducted to analyze requirements and
create performance and equipment  specifications for the new unit. Developmental
testing is included in this task.

The context and scope of this development are largely focused on the development
and  incorporation  of the [*] and on  software  to  accommodate  this unit.  In
addition,  there is significant imaging software  development beyond the Phase 2
effort.  The Seeker  prototype  unit will serve as the  starting  point for this
development.  The resultant Imager will be very similar to the Seeker,  and will
continue  to have basic  Seeker  operational  capability  in addition to its new
imaging  capability.  Priority  will be given in the Program to  specifying  and
1ocating  appropriate [*],  preferably at an early enough time in the Program to
design  the basic  Seeker  Unit to  accommodate  future  [*] with a  minimum  of
hardware  modifications.  The baseline plan for the [*] is to utilize a standard
commercial  package.  Preliminary  investigation  indicates that  relatively low
performance  requirements,  combined  with the ready  availability  of low cost,
small silicon-based accelerometers, make this a reasonable assumption.

A  parallel  development  will be the  nondeliverable  Scissors  Radar  Test Bed
(SRTB).  This  unit is  designed  to be  installed  in the mine  tunnel  to scan
vertical  tunnel  walls.  Its  principles of operation are similar to the Gantry
Radar Test Bed (GTRB),  except for the scanning  geometry and areas of scan. The
SRTB  design  is  complete  as of  this  writing.  These  tools  will be used in
Performance  verification  tests aiding in the definition and development of the
Imager.

Hardware and Software Design will then be carried out. The major hardware effort
is the  development and  integration of an inertial  reference  module that will
allow  data  taken from  multiple  test  positions  to be  autonomously  brought
together and processed into 3-D images.  One Prototype  Imager will be built and
checked  out.  Field  trials will then  commence.  A  modification  iteration is
planned, based on trial results. Special Test Equipment will also be defined and
generated in support of this task. A Final Report  covering the Imager Unit will
be generated.

4.3   Borehole Tomography Assessment & Demo

This element commences with Radar Systems Engineering to analytically select and
predict performance  scenarios,  and to document requirements in performance and
equipment  specifications  and  test  plans.  Cyberdynamics  Inc will be a major
subcontractor  for this task.  Suitable test sites will be selected and prepared
under this task.

Prototype  Demo Hardware will be assembled in  preparation  for testing.  To the
extent  possible,  this  hardware  will  either be leased or drawn from  company
inventory.  Expected elements include a transmitter,  a receiver with high speed
digitizer, winches, cables, computers,  antennas, power source and conditioning,
and  communications  equipment.  A parallel Software  development effort will be
conducted.

- ------
* Confidential treatment has been requested as to portions of this agreement.

                                   PROPRIETARY

                                      -B6-

<PAGE>

Field Trials will be conducted to assess the  viability and  competitiveness  of
the borehole tomography concepts introduced into this Program.  The element will
be concluded with a Final Report.  No deliverable  hardware is required for this
element.

4.4   Program Management

Overall  management and reporting  tasks are collected here. The Program Manager
will  conduct  periodic  internal  meetings  in order to monitor and control the
Program.  A series of Design  Reviews is also planned.  Monthly  Reports will be
generated to provide the customer  with  adequate  visibility  into the Program.
Final  Reports  will be  written  for each of the three  major  elements  of the
Program.  Program  Reviews will also be conducted on a monthly  basis,  and will
include detailed cost tracking and predictions.

5.0   Program Schedule

Major  elements and milestones of the Phase 2 Program are shown in Figure 5.0-1.
A start date of 2 December,  1996 is assumed.  Element 1, the basic Seeker Unit,
is a nine-month program through the prototype.  The production of two additional
Seeker Units will be completed at the ten-month ARO point.  The Imager Unit will
be complete by the eleventh  month.  The borehole  tomography work will begin in
the ninth month and be the final element to be completed, for an overall Program
duration of 14 months.

                                  PROPRIETARY

                                      -B7-

<PAGE>

                                LandRay Phase 3

                              Figure 5.0-1 Page 1

Chart summarizes the time table for Phase 3 of the LandRay Project.




                                      -B8-

<PAGE>

                                LandRay Phase 3

                              Figure 5.0-1 Page 2

Chart summarizes the time table for Phase 3 of the LandRay Project.



                                      -B9-

<PAGE>

                                  Attachment I                           12/2/96
                        Work Breakdown Structure Outline
                                 LandRay Phase 3

1.0   Narrow Beam Radar Probe ("Seeker") Development

1.1   Radar Systems Engineering

      1.1.1  Performance specification
      1.1.2  Performance analysis and predictions
      1.1.3  Equipment specifications
      1.1.4  Performance verification tests (beyond Phase 2)
      1.1.5  Test plans

1.2   Hardware Design

      1.2.1  Brassboards
      1.2.2  Antennas
      1.2.3  Transmitter
      1.2.4  Receiver & digitizer
      1.2.5  Computational hardware
      1.2.6  Display & controls
      1.2.7  Power source and conditioning
      1.2.8  Overall packaging

1.3   Software

      1.3.1  Software requirements & specifications
      1.3.2  Radar signal processing
      1.3.3  Articulation control
      1.3.4  Display software

1.4   First Article Prototype

      1.4.1  Piece part procurement
      1.4.2  Subcontracted assembly (PCB's included)
      1.4.3  Final assembly
      1.4.4  System integration & test
      1.4.5  Temperature testing
      1.4.6  Sandbox trials
      1.4.7  Field trials
      1.4.8  Design modifications
      1.4.9  Final Report

                                  PROPRIETARY

                                     -B10-

<PAGE>

1.5   Special Test Equipment

1.6   Follow-On Units (2 ea)

      1.6.1  Piece part procurement
      1.6.2  Subcontracted assembly
      1.6.3  Final assembly
      1.6.4  Unit checkout

Cost Estimate for 1.0, "Seeker"

      --------------------------------------------------------------------------
            Direct Labor       Subcontracted        Materials &        Total
             (k$)               Services             Travel             (k$)
                                (k$)                 (k$)
      --------------------------------------------------------------------------
             [*]                 [*]                 [*]                 [*]
      --------------------------------------------------------------------------

2.0   Imager Prototype

2.1   Radar Systems Engineering

      2.1.1  Performance specification
      2.1.2  Performance analysis and predictions
      2.1.3  Equipment specifications
      2.1.4  Scissors Radar Test Bed
      2.1.5  Performance verification tests (beyond 1.0)
      2.1.6  Test plans

2.2   Hardware Design

      2.2.1  [*]
      2.2.2  Display and controls
      2.2.3  Misc. Seeker mods

2.3 Software

      2.3.1  Software specification
      2.3.2  [*]
      2.3.3  Radar signal processing
      2.3.4  Display and control


- ------
* Confidential treatment has been requested as to portions of this agreement.

                                  PROPRIETARY

                                     -B11-

<PAGE>

2.4   Prototype Imager(1)

      2.4.1  Piece part procurement
      2.4.2  Subcontracted assembly
      2.4.3  Final assembly
      2.4.4  System integration & test
      2.4.5  Verification trials
      2.4.6  Design mod documentation

2.5   Field Trials

2.6   Final Report

2.7   Special Test Equipment

Cost Estimate for 2.0. "Imager"

      --------------------------------------------------------------------------
            Direct Labor       Subcontracted        Materials &        Total
             (k$)               Services             Travel             (k$)
                                (k$)                 (k$)
      --------------------------------------------------------------------------
             [*]                 [*]                 [*]                 [*]
      --------------------------------------------------------------------------

3.0   Borehole Tomography Assessment & Demo

3.1   Radar Systems Engineering

      3.1.1  Performance specification
      3.1.2  Performance analysis and predictions
      3.1.3  Equipment specifications
      3.1.4  Test plans
      3.1.5  Test site development

3.2   Prototype Demo Hardware

      3.2.1  Transmitter
      3.2.2  Winches
      3.2.3  Cable
      3.2.4  Computers
      3.2.5  Receiver & digitizer

- ------
* Confidential treatment has been requested as to portions of this agreement.

(1) Assumes use of first article prototype Seeker as hardware starting point


                                  PROPRIETARY

                                     -B12-

<PAGE>

      3.2.6  Antennas
      3.2.7  Power source & conditioning
      3.2.8  Communications

3.3   Software

      3.3.1  Radar signal processing
      3.3.2  Positioning control
      3.3.3  Display

3.4   Field Trials

3.5   Final Report

Cost Estimate for 3.0, "Borehole"

      --------------------------------------------------------------------------
            Direct Labor       Subcontracted        Materials &        Total
             (k$)               Services             Travel             (k$)
                                (k$)                 (k$)
      --------------------------------------------------------------------------
             [*]                 [*]                 [*]                 [*]
      --------------------------------------------------------------------------

4.0   Program Management

4.1   Program Management

4.2   Program Administration

4.3   Design Reviews

4.4   Travel (excluding field trials)

4.5   Monthly Reports

4.6   Final Report Support

Total Program Cost Estimate

      --------------------------------------------------------------------------
            Direct Labor       Subcontracted        Materials &        Total
             (k$)               Services             Travel             (k$)
                                (k$)                 (k$)
      --------------------------------------------------------------------------
             [*]                 [*]                 [*]                 [*]
      --------------------------------------------------------------------------

- ------
* Confidential treatment has been requested as to portions of this agreement.

                                  PROPRIETARY

                                     -B13-

<PAGE>


                                    EXHIBIT C

                                 LIST OF PATENTS


<PAGE>

                             Power Spectra Patents

PSI has  obtained  a number of  patents to  protect  its  intellectual  property
rights.  PSI currently holds five (5) patents on its BASS(TM)  devices.  Current
BASS patents are:

1. Patent No.  4,782,222 - Bulk  Avalanche  Semiconductor  Switch Using  Partial
   Light Penetration and Inducing Field Compression.

   This  patent  forms the  foundation  for the BASS Mesa  patent.  This  patent
   describes  the  fundamental  features  of the BASS  device,  the use of light
   absorption  to  generate   electric-field   enhancement   within  the  device
   structure.  The effect is called field  compression and results in the unique
   performance of the Bass device. The term field compression is used along with
   "bulk avalanche" to distinguish the BASS device from previous  embellishments
   of light triggered  semiconductor  switches.  More  specifically,  the patent
   describes  a switch  that  uses an  improved  method  of  optically-triggered
   avalanche  breakdown  which can produce  pulses of 100  picoseconds or longer
   duration and can deliver five kilovolts into fifty (50) ohms using a standard
   laser diode.

   Expiration date: November 1, 2005

2. Patent No. 4,864,119 - Bulk Avalanche Switch Using Mesa Structure

   This patent  describes a switch that can produce  pulses of one hundred (100)
   picoseconds  or longer  duration.  The switch can deliver five (5)  kilovolts
   into fifty (50) ohms using  standard  laser diode.  The patent also describes
   the basic  construction  of the present  BASS  device and several  derivative
   constructions  and is an  embellishment  of the bulk  avalanche  patent.  The
   design uses a mesa  structure  on top of the device to allow  higher  voltage
   operation.  Another  important factor is the application of epitaxial regions
   on the top and the bottom of the device.

   Expiration date: September 5, 2006

3. Patent No. 4,438,331 - Bulk Semiconductor Switch

   The patent describes a device for switching  kilovolt level voltages in times
   on the order of one (1)  nanosecond  or less,  using optical  radiation  with
   energy input of 10(-7)  joules.  This patent also  describes a  cryogenically
   cooled  semiconductor  switch. The device is a surface conduction device that
   uses laser  triggering  at two  wavelengths.  A short  wavelength  is used to
   trigger conduction and a second, longer wavelength is used to aid in ram-off.

   Expiration date: March 20, 2001


<PAGE>

4. Patent No. 4,891,815 - Bulk Avalanche Semiconductor Laser

   The patent describes a bulk semiconductor laser that uses optically triggered
   avalanche conduction to initiate the lasing action in the bulk semiconductor.

   Expiration date: January 2, 2007

5. Patent No. 4,494,011 - High Voltage Nanosecond Pulse Generator

   This patent  describes a high voltage pulse  generator for producing at least
   five hundred (500)  kilowatts of power over two  nanoseconds  with short rise
   time,  using a high voltage  avalanche  source,  a plurality of biased triode
   amplifier robes and circuits and a voltage step-down  transformer between any
   two consecutive stages.

   Expiration date: January 15, 2002

   In addition to proprietary  PSI process  "know-how," the company has licenses
on key technologies and software as well as an exclusive, world-wide license for
its PSIristor  technology.  A license for several software  patents,  key to the
success of the mine finding radar development, was obtained in early 1996.

   Furthermore,  PSI believes and has  experience  to support its belief that it
will  obtain  additional  hardware  and system  patents on its  LandRay  related
technology,  as well as  copyrights  on LandRay  related  software.  The company
expects to apply for and receive patents and copyrights as follows:

   o [*]
   o [*]
   o [*]
   o [*]
   o [*]
   o [*]
   o [*]
   o [*]
   o [*]

   Plus,  the company  anticipates  additional  patents and  copyrights on other
advancements and extensions of its hardware and systems technology and know how.

- ------
* Confidential treatment has been requested as to portions of this agreement.


<PAGE>

                                    EXHIBIT D

                                 CONTRACT PRICE

Event                                                             Amount Payable

1. LandRay, Phase 3 Contract executed -- down payment of 1/3          $1,000,000

2. Each calendar quarter-end -- five quarterly progress reports          400,000
   [Provided that PSI monthly progress reports and 
   quarterly reviews are made]

                                                                      $3,000,000
                                                                      ==========

                                    LANDRAY
                                TECHNOLOGY, INC
- --------------------------------------------------------------------------------

March 13, 1997 via fax to 408-732-1832

Power Spectra, Inc.
919 Hermosa Court
Sunnyvale, CA 94086
Attn: Chuck Byer

Gentlemen:

This letter is a formal amendment to that certain GPR System  Development,  Sale
and License Agreement  between LandRay  Technology,  Inc.  ("LandRay") and Power
Spectra,  Inc., ("PSI") dated as of December 17, 1996 (the "Agreement").  Except
as set forth herein,  the Agreement  shall remain in full force and effect.  All
capitalized  terms not otherwise defined herein shall have the meanings ascribed
to them in the Agreement.

The intent of this amendment is to restructure  certain  aspects of the existing
Agreement,  which  presently  provides  for  a  $3,000,000  payment  by  us  and
concurrent  performance  by you on a number of  different  aspects  of the GPRS.
Because of mutual resource limitations,  we both want to restructure the program
into a series of three  manageable  projects  or steps  which  are  independent,
sequential,  and  optional on  LandRay's  part,  to provide for  certainty  with
respect to the grant to us of manufacturing rights on a project-by-project basis
to be effective  upon the bankruptcy of PSI or the failure of PSI to deliver GPR
Products  based upon agreed  schedules  per  Exhibits D-1 and D-2, to change the
cure period and to effect other clean- up items.

To implement that intent:

1. Section 4.1 of the Agreement is amended to read in full as follows:

     LandRay will pay PSI the sum of up to $3,000,000 (the "Contract Price") for
     the  development of the work to be performed  hereunder.  Such payment will
     occur in three discrete,  independent steps. The first step,  involving the
     payment of $1,200,000  shall have up to five  tranches.  The first $250,000
     payable by LandRay  within ten business  days after the date hereof,  shall
     confirm to LandRay the irrevocability of the license :

- --------------------------------------------------------------------------------
235 Montgomery Street, Suite 807                 San Francisco, California 94104
                     tel 415.433.6930 -:- fax 415.433.0627

<PAGE>

Power Spectra, Inc. Contract Amendment
March 13, 1997
Page 2

     grant  referred to in  Paragraph 5. l(d) hereof with respect to the Seeker;
     the  remaining  balance of  $950,000  for this step  shall be payable  upon
     achievement  of the  milestones  set forth in Exhibit D-1 attached  hereto.
     Upon  completion of (i) a complete  technical  data package with respect to
     the Seeker,  and (ii)  delivery of one finished  Seeker unit, LandRay shall
     have six  months  to  exercise  its  option to pursue  the  Imager  and the
     Borehole-to-Borehole  applications  of the Imager for an aggregate price of
     $1,800,000  payable upon achievement of milestones with respect thereto set
     forth on Exhibit D-2 attached  hereto.  The  aforementioned  technical data
     package shall be reviewed for approval by LandRay (which  approval will not
     be  unreasonably  withheld,  and  which  shall  be done  within  30 days of
     submittal  to  LandRay)  and will be kept in a secure  place for  immediate
     release to LandRay as provided for in Section 5.1(d)  hereof.  All payments
     set forth on  Exhibits  D-1 and D-2  shall be due and  payable  within  ten
     business days after the respective events set forth therein. If LandRay has
     not   exercised   its   option   to   pursue   steps   2   (Imager)   or  3
     (Borehole-to-Borehole)  within six months after  completion of the delivery
     of the Seeker and the related  technical  data package,  then LandRay shall
     lose its rights with respect to the unexercised option(s).

2.   Paragraph  5. l(a) is hereby  amended to encompass  one license  grant with
     respect  to the  Seeker  for the  licensed  applications  upon the  initial
     payment of $250,000,  and a second and third  license grant with respect to
     the   "Imager"  and  the   "Borehole-to-Borehole"   GPR  for  the  licensed
     applications upon the initial payment therefor as contemplated hereunder.

3.   The  second  sentence  of  Section  5.l(a)  is  amended  to read in full as
     follows:

     During the term hereof, PSI shall not make available to any third party any
     rights under the GPR Patents or the GPR Know-How,  or make available to any
     third party any products  which are the  functional  equivalents of the GPR
     products, in either case for the licensed applications.


4.   Paragraph  5.1(d) is amended to provide  for a 60 day cure period on line 5
     and to include  the word  "automatically"  between  the words  "shall"  and
     "include" in line 7. PSI shall deliver the technical data package with

<PAGE>

Power Spectra, Inc. Contract Amendment
March 13, 1997
Page 3

     sufficient  content and detail to permit LandRay to manufacture the subject
     device (Seeker, Imager and/or Borehole-to-Borehole,  as appropriate) either
     internally  or  by  contract  manufacturer  without  additional  consulting
     assistance.

5.   Paragraph 5.3(a) shall be amended to read in full as follows:

     Following  delivery of the PSI  Deliverables  to LandRay and LandRay's full
     payment  of the  Contract  Price and other fees set forth in Article 4 with
     respect to that independent phase,  LandRay shall take title to, and become
     the exclusive owner of, the PSI Deliverables delivered with respect to that
     phase.

6.   The  reference  to the  number  "forty-five  (45)"  in the  second  line of
     Paragraph 7.2 shall be amended to "sixty (60)".

7.   In  Article  13,  the  following  sentence  shall be added  after the third
     sentence:

     "PSI shall manufacture GPR products upon receipt of LandRay's  order(s) and
     provide prompt delivery;"

     the following  clause shall be added to the fifth  sentence,  on line nine,
     between the words "GPR Products" and "and":

     "(calculated using standard product cost accounting methods)"

     and the following  clause shall be added to the end of the fifth  sentence,
     following the word "margin":

     "(not to exceed 20%)"

8.   The  second  line of Section  15.8 is  amended to read in full as  follows:
     "...bankruptcy   rejects  this  Agreement.   LandRay's  rights  under  this
     Agreement shall be as..."

9.   The reference in Section  7.4(c) to "Section 7.6" (which does not exist) is
     to be changed to refer to "Section 7.5".


<PAGE>

Power Spectra, Inc. Contract Amendment
March 13, 1997
Page 4

10.  In reviewing the relevant  documentation,  we noted an  awkwardness  in the
     identification  of the parties to the  original  Ground  Penetrating  Radar
     Development  Agreement  dated June 19, 1996 (the "Initial  Agreement").  By
     this letter we each confirm that the parties to the Initial  Agreement  are
     only PSI and LandRay,  acting by and through  third parties for the benefit
     of LandRay.

11.  The Initial Agreement provides for an anti-dilution minimum of 25% for PSI.
     PSI hereby agrees to reduce its  anti-dilution  minimum to 22.67%,  and the
     parties  agree to  resolve  any  further  reduction  of this  anti-dilution
     minimum by future amendment.

Please sign and return the  enclosed  copy of this letter to evidence an initial
agreement with respect to the amendment of the Agreement.

                               Very truly yours,
                               LANDRAY TECHNOLOGY, INC.

                               /s/ Thomas A. Spanier
                               
                               Thomas A. Spanier
AGREED:

POWER SPECTRA, INC.


By: /s/ Gordon H. Smith
    --------------------

Its: CEO
    --------------------
Dated: 18 March 1997 ,1997
      --------------

<PAGE>

Power Spectra, Inc. Contract Amendment
March 13, 1997
Page 5

EXHIBIT D- 1

   Event                                      Amount Payable
   -----                                      --------------

1. LandRay, Phase 3 Contract Amendment executed $250,000

2. Milestone 2                                  $250,000

3. Milestone 3

[Milestones  from  Seeker  Development  Plan should be listed  here,  in roughly
$250,000  increments,  with the final  payment  for the final  deliverable.  The
present  interim seeker plan is not clear on "Interim  Seeker"  description  and
delivery  schedule.  Suggested  milestones  should include delivery of a defined
"Interim  Seeker"  and  the  final  "Production  Seeker",   along  with  interim
milestones  to link funding with some sort of definable  progress --  milestones
can refer to the GANTT  schedule Task ID line numbers.  These are issues we need
to clarify,  but we can't hold up the funding  process to do so.  Therefore,  we
agree to detail this to our mutual satisfaction at the earliest possible date.]

<PAGE>

Power Spectra, Inc. Contract Amendment
March 13, 1997
Page 6

EXHIBIT D-2

This  needs  to be open at this  point - We  don't  have a good  picture  of the
milestones  and schedule,  but during the progress of the Seeker  development we
will be able to put this  together.  We can agree to the  amount  of  $1,800,000
subject to the  escalation  clause,  but it would be  unrealistic to button down
specifics at this point.  We agree to agree on a schedule along the lines of the
Seeker  funding  concept,  and to do so by the  time the 6 month  option  period
begins.





                               POWER SPECTRA, INC.

                          REGISTRATION RIGHTS AGREEMENT


         This  Registration  Rights  Agreement  (the  "Agreement")  is made  and
entered into effective this 11th day of April, 1997, by and among POWER SPECTRA,
INC., a California  corporation (the "Company") and certain  undersigned holders
of the  Company's  securities  as are appear on the  signature  page  hereof and
similar forms of Registration  Rights Agreement  entered into in connection with
the private  placement of the  Company's  Common Stock  pursuant to the offering
memorandum  dated  February 7, 1997 and/or for whose  benefit this  Agreement is
being entered into as described elsewhere herein.

         NOW,  THEREFORE,  in consideration of the above recitals and the mutual
promises contained herein, the parties do hereby agree as follows:

1.       REGISTRATION UNDER THE SECURITIES ACT.

         1.1      Definitions. For purposes of this Agreement:

                  (a) The term  "Act"  means  the  Securities  Act of  1933,  as
amended.

                  (b) The terms  "register,"  "registered,"  and  "registration"
refer  to a  registration  effected  by  preparing  and  filing  a  registration
statement  in  compliance  with  the Act  and the  declaration  or  ordering  of
effectiveness of such registration statement;

                  (c) The term "Registrable  Securities" means (i) the Company's
no par value Common Stock (the "Common  Stock") sold in a private  offering more
fully described in the Company's  Confidential Private Offering Memorandum dated
February 7, 1997 (the "Offering") and "Memorandum," respectively);  and (ii) any
Common Stock or other  securities of the Company issued or issuable with respect
to  such  shares  of  Common  Stock  upon  any  stock  split,   stock  dividend,
recapitalization,  or similar  event,  or any Common Stock  otherwise  issued or
issuable with respect to such Common Stock; provided,  however, that Registrable
Securities   shall  not  include  any   securities  no  longer  subject  to  the
restrictions on transfer imposed by or on account of the Act.

                  (d) The term  "Holder"  means the  person  or  entity  holding
Registrable Securities, who is also a party to this Agreement.

                  (e) Unless  otherwise  indicated,  any other  capitalized term
used herein shall have the meaning set forth in the Memorandum.


<PAGE>

         1.2  Registrable  of  Registrable  Securities.  Within  six (6)  months
following  the final  closing of the  Offering,  the Company  shall use its best
efforts to file a registration  statement under the Act covering the Registrable
Securities  and to use its  further  best  efforts  to cause  such  registration
statement to be declared  effective by the Securities  and Exchange  Commission.
The Company is  obligated to effect only one (1)  registration  pursuant to this
Section  1.2  unless  the  Company  fails  to  effect  the  registration  of all
Registrable  Securities  for  which  registration  is  required  and  have  such
registration declared or ordered effective.

         1.3 Obligations of the Company.  Whenever  required under Paragraph 1.2
to  use  its  best  efforts  to  effect  the  registration  of  any  Registrable
Securities, the Company shall, as expeditiously as reasonably possible:

                  (a)  Prepare  and  file  with  the   Securities  and  Exchange
Commission  (the  "Commission")  a  registration  statement with respect to such
Registrable  Securities  and use its best  efforts  to cause  such  registration
statement to be declared or ordered effective.

                  (b) Prepare and file with the Commission  such  amendments and
supplements to such registration statement and the prospectus used in connection
with such  registration  statement as may be necessary to keep such registration
statement effective for a period ending the earlier of (i) the completion of the
distribution  of  the  Registrable   Securities  included  in  the  registration
statement or (ii) one year from the date hereof.

                  (c)  Furnish  to  the  Holder  such  numbers  of  copies  of a
prospectus,   including  a  preliminary  prospectus,   in  conformity  with  the
requirements of the Act, and such other documents as they may reasonably request
in order to facilitate the disposition of Registrable Securities owned by them.

                  (d)  Use  its  best   efforts  to  register  and  qualify  the
securities covered by such registration statement under such other securities or
Blue Sky laws of such  jurisdictions as shall be reasonably  appropriate for the
distribution of the securities covered by the registration  statement,  provided
that the Company shall not be required in connection therewith or as a condition
thereto  to qualify to do  business  or to file a general  consent to service or
process in any such states or jurisdictions, and further provided that (anything
in this Agreement to the contrary notwithstanding with respect to the bearing of
expenses) if any  jurisdiction in which the securities  shall be qualified shall
require that  expenses  incurred in  connection  with the  qualification  of the
securities  in that  jurisdiction  be borne by selling  shareholders,  then such
expenses  shall be  payable  by  selling  shareholders  pro rata,  to the extent
required by such jurisdiction.

                  (e) Use its best  efforts  to  maintain  a current  prospectus
allowing the resale of the Shares covered by the  registration  statement for so
long  as  any  of the  Registrable  Securities  remain  unsold  pursuant  to the
prospectus,  subject to termination of this obligation as set forth in paragraph
1.8, below.

                                       2
<PAGE>

         1.4  Furnish  Information.  It shall be a  condition  preceding  to the
obligations  of the Company to take any action  pursuant to this Agreement as to
any Holder  that such  Holder  shall  furnish to the  Company  such  information
regarding  him or it,  the  Registrable  Securities  held by him or it,  and the
intended  method  of  disposition  of  such  securities  as  the  Company  shall
reasonably  request and as shall be requested or required by the  Commission  or
otherwise in connection with the action to be taken by the Company.

         1.5 Expenses of Registration.  All expenses incurred in connection with
registration pursuant to Paragraph 1.2 hereof (excluding underwriters' discounts
and  commissions),   including,   without   limitation,   all  registration  and
qualification fees, printers' and accounting fees, and fees and disbursements of
counsel for the Company, shall be borne by the Company.

         1.6 Delay of Registration.  Notwithstanding any other provision of this
Agreement, no Holder shall have any right to take any action to restrain, enjoin
or otherwise delay any  registration as the result of any controversy that might
arise with respect to the interpretation or implementation of this Agreement.

         1.7  Indemnification.  In the  event  any  Registrable  Securities  are
included in a registration statement under this Agreement:

                  (a) To the extent permitted by law, the Company will indemnify
each Holder,  each of its officers and directors  and partners,  and each person
controlling  such  Holder  within the  meaning  of  Section 15 of the Act,  with
respect to which  registration,  qualification  or compliance  has been effected
pursuant to this Agreement,  and each  underwriter,  if any, and each person who
controls any  underwriter  within the meaning of Section 15 of the Act,  against
all expenses,  claims,  losses,  damages and  liabilities (or actions in respect
thereof),  including  any  of  the  foregoing  incurred  in  settlement  of  any
litigation,  commenced  or  threatened,  arising  out of or based on any  untrue
statement (or alleged  untrue  statement)  of a material  fact  contained in any
registration statement,  prospectus, offering circular or other document, or any
amendment   or   supplement   thereto,   incident  to  any  such   registration,
qualification  or  compliance,  or any omission  (or alleged  omission) to state
therein a material fact  required to be stated  therein or necessary to make the
statements  therein,  in light of the circumstances in which they were made, not
misleading, or any violation by the Company of the Act or any rule or regulation
promulgated  under the Act applicable to the Company in connection with any such
registration,  qualification or compliance,  and the Company will reimburse each
such Holder,  each of its officers and directors  and partners,  and each person
controlling such Holder,  each such underwriter and each person who controls any
such underwriter,  for any legal and any other expenses  reasonably  incurred in
connection  with  investigating,  preparing or defending  any such claim,  loss,
damage, liability or action, provided that the Company will not be liable in any
such case to the extent that any such claim, loss, damage,  liability or expense
arises out of or is based on any untrue  statement or omission or alleged untrue
statement or alleged  omission,  made in reliance  upon and in  conformity  with
written information furnished to the Company by such Holder, officer,  director,
partner, controlling person or underwriter and stated to be specifically for use
therein.

                                       3

<PAGE>

                  (b) To the  extent  required  by law,  each  Holder  will,  if
Registrable  Securities held by such Holder are included in the securities as to
which  such  registration,   qualification  or  compliance  is  being  effected,
indemnify the Company,  each of its officers and directors,  each underwriter of
the Company's securities covered by such a registration  statement,  each person
who controls the Company or such  underwriting  within the meaning of Section 15
of the Act, and each other such Holder,  each of its officers and  directors and
partners and each person  controlling  such Holder within the meaning of Section
15 of the Act, against all expenses, claims, losses, damages and liabilities (or
actions  in  respect  thereof),  including  any of  the  foregoing  incurred  in
settlement of any litigation,  commenced or threatened,  arising out of or based
on any untrue  statement  (or  alleged  untrue  statement)  of a  material  fact
contained in any registration statement,  prospectus, offering circular or other
document, or any amendment or supplement thereto, incident to such registration,
qualification  or  compliance,  or any omission  (or alleged  omission) to state
therein a material fact  required to be stated  therein or necessary to make the
statements therein not misleading, and will reimburse the Company, such Holders,
such directors, officers, partners, persons, underwriters or control persons for
any  legal  or  any  other  expenses  reasonably  incurred  in  connection  with
investigating, preparing or defending any such claim, loss, damage, liability or
action,  in each case to the extent,  but only to the  extent,  that such untrue
statement (or alleged untrue statement) or omission (or allege omission) is made
in such registration statement,  prospectus, offering circular or other document
in reliance upon and in  conformity  with written  information  furnished to the
Company  by any  instrument  duly  executed  by such  Holder  and  stated  to be
specifically for use therein.  Notwithstanding  the foregoing,  the liability of
each Holder under this subsection (b) shall be limited in an amount equal to the
initial  public  offering  price of the shares sold by such Holder,  unless such
liability arises out of or is based on willful conduct by such Holder.

                  (c)  Each  party  entitled  to   indemnification   under  this
Paragraph 1.7 (the "Indemnified  Party") shall give notice to the party required
to  provide  indemnification  (the  "Indemnifying  Party")  promptly  after such
Indemnified Party has actual knowledge of any claim as to which indemnity may be
sought,  and shall  permit the  Indemnifying  Party to assume the defense of any
such claim or any litigation resulting therefrom;  provided that counsel for the
Indemnifying  Party,  who shall conduct the defense of such claim or litigation,
shall  be  approved  by  the   Indemnified   Party  (whose  approval  shall  not
unreasonably  be withheld),  and the  Indemnified  Party may participate in such
defense at such party's  expense;  and provided  further that the failure of any
Indemnified  Party to give  notice as  provided  herein  shall not  relieve  the
Indemnifying Party of its obligations under this Agreement unless the failure to
give such notice is materially  prejudicial to an Indemnified Party's ability to
defend such action;  and provided further that the Indemnifying  Party shall not
assume the  defense  for  matters as to which there is a conflict of interest or
separate and different  defenses.  No Indemnifying  Party, in the defense of any
such claim or  litigation,  shall,  except with the consent of each  Indemnified
Party,  consent to entry of any judgment or enter into any settlement which does
not  include as an  unconditional  term  thereof  the giving by the  claimant or
plaintiff to such  Indemnified  Party of a release from all liability in respect
to such claim or litigation.

                                       4

<PAGE>

         1.8 Termination of the Company's Obligations. The Company shall have no
obligations  pursuant to Paragraph  1.2 if the benefits of Rule 144  promulgated
under the Act as  currently in effect or any other  similar  rule or  regulation
that may  hereinafter be enacted by the  Commission  permitting a Holder to sell
securities  of the  Company  to the  public  without  registration  on terms and
conditions  as beneficial to the Holder as those of Rule 144 as it exists at the
date of this Agreement, are available to the Holder, then the Company shall have
no  obligation  to register  securities  (or  continue to maintain an  effective
registration  statement covering the resale of such securities) pursuant to this
Agreement  to any Holder who owns less than one  percent  (1%) of the  Company's
Common Stock (on a fully  diluted  basis) and whose sales are not required to be
aggregated with others.

         1.9 Reports under the Securities  Exchange Act of 1934.  With a view to
making  available to the Holders the benefits of Rule 144 promulgated  under the
Act and any other  rule or  regulation  of the  Commission  that may at any time
permit  a  Holder  to sell  securities  of the  Company  to the  public  without
registration, the Company agrees to use its best efforts to:

                  (a) Make and keep public information available, as those terms
are understood  and defined in Rule 144, at all times  subsequent to ninety (90)
days after the effective date of the first  registration  statement  covering an
underwritten  public  offering  filed by the  Company,  or if such  registration
statement has already been filed, as of the date hereof;

                  (b) File with the  Commission  in a timely  manner all reports
and other  documents  required of the Company  under the Act and the  Securities
Exchange Act of 1934, as amended (the "1934 Act"); and

                  (c)  Furnish to any Holder so long as such  Holder owns any of
the  Registrable  Securities  forthwith upon request a written  statement by the
Company that it has complied with the reporting requirements of Rule 144 (at any
time after ninety (90) days after the effective date of said first  registration
statement filed by the Company,  or if such  registration  statement has already
been filed, as of the date hereof), and of the Act and the 1934 Act (at any time
after it has become  subject to such reporting  requirements,  or, if already so
subject,  as of the date hereof),  a copy of the most recent annual or quarterly
report of the  Company,  and such other  reports and  documents  so filed by the
Company as may be  reasonably  requested  in availing  any Holder of any rule or
regulation of the Commission  permitting  selling of any such securities without
registration.

         1.10 Proposed Transfers of Registrable  Securities.  The Holder of each
certificate representing Registrable Securities,  by accepting those securities,
agrees to comply in all respects with the following provisions:

                  (a)  Prior  to  any  proposed   transfer  of  any  Registrable
Securities  (other than under the  circumstances  described  in  Paragraph  1.2,
above), the Holder of those Registrable Securities shall given written notice to
the Company of such Holder's intention to effect the transfer.

                                       5

<PAGE>

                  (b)  Each  such   notice   shall   describe   the  manner  and
circumstances of the proposed transfer, shall be accompanied by such information
as is  necessary in order to  establish  that such  transfer may be made without
registration  under  the Act  and,  other  than in  connection  with a  proposed
transfer in according  with Rule 144 or any similar rule or regulation  that may
hereafter be enacted by the Commission permitting a Holder to sell securities to
the public without  registration  on terms and conditions  analogous to those of
Rule 144,  and except with  respect to  transactions  not  involving a change in
beneficial   ownership  or  transactions   involving  the  distribution  without
consideration  of  Registrable  Securities by any of the Holders to any of their
partners, retired partners, or any estate of their partners or retired partners,
or to any  affiliated  venture  capital  partnership  or to any  members  of the
immediate  family of the Holders or to a family trust of the  Holders,  shall be
accompanied  by  either  (i) a written  opinion  of legal  counsel  who shall be
reasonably satisfactory to the Company and its counsel stating that the proposed
transfer of the  Registrable  Securities  may be effected  without  registration
under the Act and without  qualification;  or (ii) a Ano action" letter from the
SEC;  or  (iii) an  appropriate  registration  statement  with  respect  to such
Registrable  Securities  filed by the Company with the  Commission  and declared
effective by the Commission.

                  (c) Having  satisfied  paragraph  1.10(b) above, the Holder of
such  Registrable  Securities  shall be  entitled to  transfer  the  Registrable
Securities in accordance with the terms of the notice delivered by the Holder to
the Company.

                  (d) Each  certificate  evidencing the  Registrable  Securities
transferred shall bear the appropriate  restrictive  legends as set forth on the
Registrable  Securities  themselves  prior to  transfer.  But the Company  shall
remove such restrictive legend upon the request of the Holder if (i) the Company
has received an opinion of counsel who is  reasonably  acceptable  to it and its
counsel to the effect that  registration of any and all future  transfers is not
required;  and (ii) an appropriate  registration  statement with respect to such
Registrable  Securities  has been filed by the Company with the  Commission  and
declared  effective by the  Commission;  or (iii) such transfer shall be made in
compliance with the requirements of Rule 144 or its successor.  In these events,
the Company shall cause new certificates  without the said restrictive legend to
be  issued  promptly  to  the  Holder  in  exchange  for  outstanding   legended
certificates,  and such  unlegended  securities  shall no longer be  Registrable
Securities under this Agreement.

         1.11 Transfer of Registration  Rights.  The registration  rights of the
Holders under this  Agreement may be  transferred to any transferee who acquires
Registrable Securities; provided, however, that such transfer of rights shall be
effective  only where the Company is given written  notice by the Holder stating
the names and address of the transferee  and  identifying  the  securities  with
respect to which the rights under this Agreement are being assigned.


                                       6

<PAGE>


IN WITNESS WHEREOF,  the parties hereto have executed this  Registration  Rights
Agreement on the date indicated below.

   Date:  April 11, 1997

                                 POWER SPECTRA, INC.
                                 a California corporation



                                 By:    /s/ Edward J. Lamb
                                      ---------------------------------------

                                 Its:    Chief Financial Officer and Secretary
                                      ---------------------------------------


   Date:           , 1997

                                 HOLDER (Non-Individual):*



                                      ---------------------------------------
                                                 NAME OF ENTITY


                                 By:
                                      ---------------------------------------


                                 Number of Shares:
                                                   --------------------------


   Date:           , 1997

                                 HOLDER (Individual):*


                                 ---------------------------------------------


                                 Number of Shares:
                                                   --------------------------

*  See attached list of Subscribers attached as Exhibit A.

                                       7
<PAGE>


                                                                       Exhibit A
                                                                       ---------

                         Subscribers who are parties to
                          Registration Rights Agreement
                              dated April 11, 1997


Barnett & Co.
California Central Trust Bank TTEE FBO Frederick S. Moore
William B. Cormack
Paul Escobosa
European Industries
Robert A. Leisses
Michael L. Meyer
Barry Reder
Kenneth J. Smith
Alan R. Stephenson and Janice A. Saunders
Michael Sugarman
William G. Van Horn


                                       8


                                                                    Exhibit 11.1
<TABLE>
                                        Power Spectra, Inc.

                                   Computation of Loss Per Share
<CAPTION>

                                                         1996            1995            1994
                                                     ------------    ------------    ------------ 
<S>                                                  <C>             <C>             <C>          
Net loss                                             ($ 3,788,299)   ($ 2,562,230)   ($ 1,112,507)
Less: accrual of preferred dividends                      195,453         189,195         104,400
                                                     ------------    ------------    ------------ 
Net loss appplicable to common shares                ($ 3,983,752)   ($ 2,751,425)   ($ 1,216,907)
                                                     ============    ============    ============
Loss per conmon share                                ($      0.26)   ($      0.25)   ($      0.12)
                                                     ============    ============    ============
Weighted average shares of common stock                                     
     outstanding                                       15,622,268      11,181,541      10,014,163
Common stock equivalent shares from stock options
using the treasury stock method                              --              --              --
                                                     ------------    ------------    ------------ 
Number of shares used in the per share computation     15,622,268      11,181,541      10,014,163
                                                     ============    ============    ============

</TABLE>


                                                                    Exhibit 23.1


     Consent Of Grant Thornton LLP, Independent Certified Public Accountants
     -----------------------------------------------------------------------


We consent to the  incorporation  by  reference in the  Registration  Statements
(Form S-8 No.  33-57280)  pertaining to the 1991 Director  Stock Plan,  Director
Option Plan, and Advisor Board Stock Program of Power Spectra,  Inc., and in the
Registration  Statement (Form S-8 No. 33-30855) pertaining to the Power Spectra,
Inc.,  1986  Incentive  Stock Option Plan, of our report dated February 21, 1997
(except for Note 10 as to which the date is April 10,  1997) with respect to the
financial statements of Power Spectra, Inc. included in the Annual Report (10-K)
for the year ended December 31, 1996.


GRANT THORNTON LLP




San Jose, California
April 14, 1997



                                                                    Exhibit 23.2


                         Consent of Independent Auditors


We consent to the incorporation by reference in the Registration Statement (Form
S-8 No.  33-57280)  pertaining to the 1991 Director Stock Plan,  Director Option
Plan and  Advisor  Board  Stock  Program  of  Power  Spectra,  Inc.,  and in the
Registration  Statement (Form S-8 No. 33-30855) pertaining to the Power Spectra,
Inc.,  1986  Incentive  Stock Option Plan of our report dated  February 17, 1995
(except  Note 3, as to which  the date is April 7,  1995)  with  respect  to the
financial statements of Power Spectra,  Inc. included in the Annual Report (Form
10-K) for the year ended December 31, 1996.


                                            ERNST & YOUNG LLP


San Jose, California
April 14 1997





<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
     This schedule  contains summary  financial  information  extracted from the
     financial  statements in the Annual  Report on Form 10-K of Power  Spectra,
     Inc. for the year ended  December 31, 1996 and is qualified in its entirety
     by reference to such financial statements.
</LEGEND>
<CIK>                         0000777527
<NAME>                        Power Spectra, Inc.
<MULTIPLIER>                                  1,000
<CURRENCY>                                      USD
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                              Dec-31-1996
<PERIOD-START>                                 Dec-31-1995
<PERIOD-END>                                   Dec-31-1996
<EXCHANGE-RATE>                                          1
<CASH>                                                 843
<SECURITIES>                                             0
<RECEIVABLES>                                           69
<ALLOWANCES>                                             0
<INVENTORY>                                            217
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