FAFCO INC
10-Q, 1996-08-07
HEATING EQUIPMENT, EXCEPT ELECTRIC & WARM AIR FURNACES
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<PAGE>   1
===============================================================================

                        SECURITIES AND EXCHANGE COMISSION
                             Washington, D.C. 20549

                                    FORM 10-Q


(Mark One)
[X]  Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange
     Act of 1934

For the quarterly period ended June 30, 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 0-10120

                                   FAFCO, Inc.
             (Exact name of Registrant as specified in its charter)

<TABLE>
<S>                                                             <C>
                          California                                            94-2159547
(State or other jurisdiction of incorporation or organization)  (I.R.S. Employer Identification No.)
</TABLE>

              2690 Middlefield Road, Redwood City, California 94063
   (Address, including zip code, of Registrant's principal executive offices)

                                 (415) 363-2690
              (Registrant's telephone number, including area code)


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 90 days.

                                  Yes X     No
                                     ---      ---

At August 14, 1996, 3,298,311 shares of the Registrant's Common Stock, $.125 par
value were issued and outstanding.

===============================================================================

                                  Page 1 of 10
<PAGE>   2
Part 1 - FINANCIAL INFORMATION
Item 1 - Financial Statements

                                   FAFCO, Inc.
                           CONSOLIDATED BALANCE SHEET

<TABLE>
<CAPTION>
                                                                      JUNE 30, 1996         DECEMBER 31, 1995
                                                                       (UNAUDITED)
- -------------------------------------------------------------------------------------------------------------
<S>                                                                   <C>                   <C>
ASSETS
Current assets:
Cash and cash equivalents                                                  $69,500                $126,200
Accounts receivable, less allowance for doubtful accounts of
    $489,900 in 1996 and $463,900 in 1995                                1,940,000               1,149,600
Current portion of long-term notes receivable (net)                        247,600                  64,000
Inventories                                                              1,031,600                 717,200
Prepaid expenses and other current assets                                  152,300                 145,500
Other accounts receivable                                                    2,100
Deferred tax asset, net of allowance                                       125,200                 125,200
- -------------------------------------------------------------------------------------------------------------
Total current assets                                                     3,568,300               2,327,700
- -------------------------------------------------------------------------------------------------------------
Plant and equipment, at cost                                             2,450,000               2,345,100
Less accumulated depreciation and amortization                          (2,093,800)             (2,085,900)
- -------------------------------------------------------------------------------------------------------------
                                                                           356,200                 259,200
- -------------------------------------------------------------------------------------------------------------
Notes receivable and other assets (net)                                    104,900                 327,700
Deferred tax asset, net of allowance                                       485,800                 485,800
- -------------------------------------------------------------------------------------------------------------
Total assets                                                            $4,515,200              $3,400,400
- -------------------------------------------------------------------------------------------------------------
LIABILITIES AND SHAREHOLDERS' EQUITY 
Current Liabilities:
    Notes payable to bank                                                 $411,300                $751,300
    Accounts payable and other accrued expenses                          1,531,600                 949,100
    Accrued compensation and benefits                                      256,000                 188,900
    Accrued warranty expanse                                               240,300                 216,000
    Income taxes payable                                                    18,800
- -------------------------------------------------------------------------------------------------------------
Total current liabilities                                                2,458,000               2,105,300
- -------------------------------------------------------------------------------------------------------------
Convertible subordinated notes $550,000 and $425,000 was owed
    to related parties in 1996 and 1995 respectively                       925,000                 600,000
Other non-current liabilities                                               18,600                  80,400
- -------------------------------------------------------------------------------------------------------------
Total liabilities                                                        3,401,600               2,785,700
- -------------------------------------------------------------------------------------------------------------
Shareholders' equity:
    Preferred Stock-authorized 1,000,000 shares of $1.00 par
       value, none of which has been issued
    Common Stock-authorized 10,000,000 shares of $0.125 par
       value; 3,298,311 issued and outstanding in 1996 and
       3,112,687 was outstanding in 1995.                                  412,200                 389,000
    Capital in excess of par value                                       5,105,100               5,035,600
    Notes receivable secured by Common Stock                               (75,100)                (75,100)
    Deficit                                                             (4,328,600)             (4,734,800)
- -------------------------------------------------------------------------------------------------------------
Total shareholders' equity                                               1,113,600                 614,700
- -------------------------------------------------------------------------------------------------------------
Commitments and contingent liabilities
- -------------------------------------------------------------------------------------------------------------
Total liabilities and shareholders' equity                              $4,515,200              $3,400,400
- -------------------------------------------------------------------------------------------------------------
</TABLE>

The accompanying notes are an integral part of this statement.


                                  Page 2 of 10
<PAGE>   3
Part I - FINANCIAL INFORMATION (continued)


                                   FAFCO, Inc.
                      CONSOLIDATED STATEMENT OF OPERATIONS
                                   (unaudited)

<TABLE>
<CAPTION>
                                                QUARTER ENDED                     SIX MONTHS ENDED
                                                   JUNE 30,                           JUNE 30,
                                         ----------------------------       ----------------------------
                                             1996             1995              1996             1995
                                         ----------------------------       ----------------------------
<S>                                      <C>              <C>               <C>              <C>
Net sales                                $ 2,775,500      $ 2,712,500       $ 5,059,900      $ 4,801,800
Other income (net)                            20,300           26,000            36,400           26,800
                                         -----------      -----------       -----------      -----------

    Total revenues                         2,795,800        2,738,500         5,096,300        4,828,600
                                         -----------      -----------       -----------      -----------

Cost of goods sold                         1,583,900        1,843,400         2,907,400        3,227,600
Marketing & selling expense                  459,000          602,400           928,100        1,168,500
General & administrative expense             370,700          403,900           682,700          764,900
Research & development expense                 5,400          150,500            58,000          278,200
Net interest expense                          40,700           17,800            81,100           33,600
                                         -----------      -----------       -----------      -----------

    Total costs and expenses               2,459,700        3,018,000         4,657,300        5,472,800
                                         -----------      -----------       -----------      -----------

Income (loss) before income taxes            336,100         (279,500)          439,000         (644,200)
Provision for income taxes                    30,500                             32,800
                                         -----------      -----------       -----------      -----------

Net income (loss)                        $   305,600      ($  279,500)      $   406,200      ($  644,200)
                                         ===========      ===========       ===========      ===========

Primary net income (loss) per share      $      0.09      $     (0.08)      $      0.13      $     (0.19)
                                         -----------      -----------       -----------      -----------
Fully diluted net income per share       $      0.09      $     (0.08)      $      0.13      $     (0.19)
</TABLE>

The accompanying notes are an integral part of this statement.


                                  Page 3 of 10
<PAGE>   4
Part I - FINANCIAL INFORMATION (continued)


                                   FAFCO, Inc.
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (unaudited)

<TABLE>
<CAPTION>
                                                                                SIX MONTHS ENDED
                                                                                    JUNE 30,
                                                                         -------------------------------
                                                                             1996                1995
                                                                         -----------         -----------
<S>                                                                      <C>                 <C>
CASH FLOW FROM OPERATING ACTIVITIES:
Net income (loss)                                                        $   406,200         $  (644,200)
Adjustments to reconcile net income to net cash provided by (used
    in) operating activities:
    Depreciation                                                              59,500              84,600
    Allowance for doubtful accounts                                           26,000              22,600
    Gain on sale of fixed assets                                              (6,000)
Change in assets and liabilities:
    Change in accounts receivable                                         (1,041,000)            407,900
    Increase in inventories                                                 (314,500)           (245,100)
    Increase in prepaid expenses                                              (6,900)            (19,600)
    Decrease in other assets                                                 261,900               5,200
    Increase in payables and accrued expenses                                702,100              87,600
    Decrease in other non-current liabilities                                (61,700)             (3,200)
                                                                         -----------         -----------
Net cash provided by (used in) operating activities                           25,600            (304,200)
                                                                         -----------         -----------

CASH FLOW FROM INVESTING ACTIVITIES:
    Purchase of fixed assets                                                (156,500)            (54,000)
    Proceeds from sale of property & equipment                                 6,000
                                                                         -----------         -----------
Net cash used in investing activities                                       (150,500)            (54,000)
                                                                         -----------         -----------

CASH FLOW FROM FINANCING ACTIVITIES:
    Proceeds from borrowing                                                  325,000             115,000
    Proceeds from sale of common stock                                        92,800
    Repayment of borrowings                                                 (349,600)            (52,700)
                                                                         -----------         -----------
Net cash provided by financing activities                                     68,200              62,300
                                                                         -----------         -----------

Net increase (decrease) in cash and cash equivalents                         (56,700)           (295,900)
Cash and cash equivalents, beginning of period                               126,200             338,000
                                                                         ===========         ===========
Cash and cash equivalents, end of period                                 $    69,500         $    42,100
                                                                         ===========         ===========

SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
    Cash paid during the period for interest                             $    73,200         $    33,900
    Cash paid during the period for income taxes                         $     7,500         $    49,000
</TABLE>

The accompanying notes are an integral part of this statement.


                                  Page 4 of 10
<PAGE>   5
Part I - FINANCIAL INFORMATION (continued)


                                   FAFCO, Inc.
               NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS
                                   (unaudited)

1. This information is unaudited; however, in the opinion of the Registrant's
management, all adjustments necessary for a fair statement of results for the
periods presented have been included. The results for the period ended June 30,
1996 are not necessarily indicative of results to be expected for the entire
year. These financial statements, notes and analyses should be read in
conjunction with the Registrant's audited annual financial statements for the
year ended December 31, 1995, included in its 1995 Annual Report to
Shareholders.

2. Net income (loss) per share is calculated using the weighted average number
of common and common equivalent shares outstanding during the periods presented.
(See Note 6)

3. Inventories are valued at the lower of cost or market, determined on a last
in, first out (LIFO) basis, and consist of the following.

<TABLE>
<CAPTION>
                                                        JUNE 30, 1996                 DECEMBER 31, 1995
                                                        -------------                 -----------------
<S>                                                     <C>                           <C>
                      Raw materials                         $534,900                       $395,200
                      Work in process                        233,900                        118,500
                      Finished goods                         262,800                        203,500
                                                          ==========                       ========
                                                          $1,031,600                       $717,200
                                                          ==========                       ========
</TABLE>

4. In February 1996, the Registrant entered into a line of credit agreement with
Silicon Valley Bank, which line of credit allows the Registrant to borrow the
lesser of $1,000,000 or an amount determined by a formula applied to accounts
receivable. Unused borrowing capacity was $588,700 at June 30, 1996. Amounts
borrowed bear interest at prime rate plus 2 -1/2% per annum and are secured by
the Registrant's assets along with The Gregory Company's assets. This line of
credit expires on June 5, 1997.


                                  Page 5 of 10
<PAGE>   6
Part I - FINANCIAL INFORMATION (continued)

Deferred tax assets are comprised of the following at:

<TABLE>
<CAPTION>
                                                   JANUARY 1, 1996        JANUARY 1, 1995
                                                   ---------------        ---------------
<S>                                                <C>                    <C>
Allowance for doubtful accounts                       $  197,000              $ 199,400
Accrued expenses                                         142,300                140,000
Loss carryforwards                                     1,360,500                625,000
Tax credits                                              178,600                193,600
Other                                                    116,400                 53,900
                                                      ----------              ---------
                                                       1,994,800              1,211,900
Deferred tax asset valuation allowance                (1,383,800)              (600,900)
                                                      ==========              =========
Total deferred taxes, net                             $  611,000              $ 611,000
                                                      ==========              =========
</TABLE>

6. Net Income (Loss) Per Share

Primary earnings per share were calculated as follows:

<TABLE>
<CAPTION>
                                                     QUARTER ENDED JUNE 30,                    SIX MONTHS ENDED JUNE 30,
                                                  1996                  1995                  1996                  1995
                                               ----------            ----------            ----------            ----------
<S>                                            <C>                   <C>                   <C>                   <C>
Net income (loss)                              $  305,600            $ (279,500)           $  406,200            $ (644,200)
                                               ----------             ---------            ----------             ---------
Average common shares outstanding               3,298,311             3,100,887             3,209,579             3,100,887
Add:  Exercise of options reduced by the
number of shares purchased with proceeds
                                                   N/A                  280,835                N/A                  259,226
Add:  Exercise of warrants reduced by the
number of shares purchased with proceeds
                                                   N/A                  118,261                N/A                  118,261
Adjusted weighted average shares
outstanding                                     3,298,311             3,500,003             3,209,579             3,478,394
                                               ----------            ----------            ----------            ----------
Net loss per share                             $     0.09            $    (0.08)           $     0.13            $    (0.19)
                                               ==========            ==========            ==========            ==========
</TABLE>

Primary earnings (loss) per share are calculated by dividing net income (loss)
by the weighted average number of shares issued and outstanding and shares
issuable upon exercise of dilutive stock options and warrants during each year.


                                  Page 6 of 10
<PAGE>   7
Part I - FINANCIAL INFORMATION (continued)

Fully diluted earnings per share were calculated as follows:

<TABLE>
<CAPTION>
                                                     QUARTER ENDED JUNE 30,                    SIX MONTHS ENDED JUNE 30,
                                                  1996                  1995                  1996                  1995
                                               ----------            ----------            ----------            ----------
<S>                                            <C>                   <C>                   <C>                   <C>
Net income (loss)                              $  305,600            $ (279,500)           $  406,200            $ (644,200)
                                               ----------            ----------            ----------            ----------
Average common shares outstanding               3,298,311             3,100,887             3,209,579             3,100,887
Add:  Exercise of options reduced by the
number of shares purchased with proceeds
                                                  N/A                   280,835               N/A                   259,226
Add:  Exercise of warrants reduced by the
number of shares purchased with proceeds
                                                  N/A                   118,261               N/A                   118,281
Add:  conversion of convertible debt into
shares                                            N/A                   N/A                   N/A                   N/A
                                               ----------            ----------            ----------            ----------
Adjusted weighted average shares
outstanding                                     3,298,311             3,500,003             3,209,579             3,478,394
                                               ----------            ----------            ----------            ----------
Net loss per common share assuming full
dilution                                       $     0.09            $    (0.08)           $     0.13            $    (0.19)
                                               ==========            ==========            ==========            ==========
</TABLE>

Fully diluted earnings (loss) per share are calculated by dividing net income
(loss), adjusted for the dilutive after-tax effect of the interest expense
associated with the convertible debt, by the sum of the weighted average number
of shares issued and outstanding and shares issuable upon exercise of dilutive
stock options and warrants, and upon conversion of convertible debt during each
year.


                                  Page 7 of 10
<PAGE>   8
Part - FINANCIAL INFORMATION (continued)
Item 2


                                   FAFCO, Inc.
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS
                                   (Unaudited)

Results of Operations

Net sales for the quarter ended June 30, 1996 increased by 2.3% from $2,712,500
from 1995 to $2,775,500 in 1996. Net sale for the six months ended June 30, 1996
increased by 5.4% from $4,801,800 in 1995 to $5,059,900 in 1996. These increases
were primarily due to increased IceStor(TM) and pool panel product sales
partially offset by decreased unit sales of the Company's automated swimming
pool controls.

Cost of goods sold decreased from $1,843,400 (68.0% of net sales) in the quarter
ended June 30, 1995 to $1,583,900 (57.1% of net sales) in the corresponding
quarter in 1996, and decreased from $3,227,600 (67.2% of net sales) for the six
month period ended June 30, 1995 to $2,907,400 (57.5% of net sales) for the
corresponding period in 1996. These decreases in cost of goods sold were due
primarily to the spreading of reduced overhead costs over slightly higher net
sales.

Marketing and selling expenses decreased from $602,400 (22.2% of net sales) in
the quarter ended June 30 1995 to $459,000 (16.5% of net sales) in the same
quarter of 1996 and a decrease from $1,168,500 (24.3% of net sales) in the six
month period ended June 30, 1995 to $928,100 ( 18.3% of net sales) for the
corresponding period in 1996. These increases were due mainly to the decrease of
in-house sales support personnel.

General and administrative expenses decreased from $403,900 (14.9% of net sales)
in the quarter ended June 30, 1995 to $370,700 (13.4% of net sales) in the same
quarter in 1996 and from $764,900 (15.9% of net sales) in the six month period
ended June 30, 1995 to $682,700 (13.5% of net sales) for the corresponding
period in 1996. These decrease were due mainly to a reduction of cost associated
with decreases in personnel throughout the company.

Research and development expensed decreased from $150,500 (5.6% of net sales)
for the quarter ended June 30 1995 to $5,400 (0.2% of net sales) for the quarter
ended June 30, 1996 and it decreased from $278,200 (5.8% of net sales) in the
six month period ended June 30, 1995 to $58,000 (1.1% of net sales) for the
corresponding period in 1996. These decreases were primarily a result of
decrease in personnel in the research and development area.

Net interest expense increased from $17,800 (0.7% of net sales) in the quarter
ended June 30, 1995 to $40,700 (1.5% of net sales) for the quarter ended June
30, 1996 and increased from $33,600 (0.7% of net sales) in the six month period
ended June 30, 1995 to $81,100 (1.6% of net sales) for the corresponding period
in 1996. These increases were mainly due to higher average daily borrowing in
1996 along with higher interest rates in 1996.

Other income (net) included $14,100 in refunds of prior year's insurance
premiums in the second quarter and $30,000 during the first six months of 1996
compared with $24,400 in the second quarter and the first six months of 1995.

Liquidity and Capital Resources

At June 30, 1996, the Registrant's inventories had increased to $1,031,600 from
$717,200 at December 31,1995. This increase was due mainly to acquisition of
inventories required to support the increased sales levels experienced during
the first half of 1996.


                                  Page 8 of 10
<PAGE>   9
Part I - FINANCIAL INFORMATION (continued)

At June 30, 1996, the Registrant's accounts payable and other accrued expenses
had increased to $1,531,600 from $949,100 at December 31, 1995. This increase is
primarily due to decreased cash flow during the first half of 1996 as a result
of the Registrant's "Early Buy" program from Above Ground Pool systems and
increased sales levels experienced during the quarter.

At June 30, 1996, the Registrant's accounts receivable had increased to
$1,940,000 from $1,149,600 at December 31, 1995 due mainly to the effect of the
Company's "Early Buy" program for Above Ground Pool panel sales which was
introduced in 1996 along with increased sales levels experienced during the
first half of 1996.

At June 30, 1996, the Registrant's accrued compensation and benefits had
increased to $256,000 from $188,900 at December 31, 1995, due mainly to the fact
that the December 1995 level was abnormally low due to heavy use of vacation
while the Company was closed in the latter half of December.

At June 30, 1996, the Registrant's current ratio was 1.45 to 1 compared with
1.11 to 1 at December 31, 1995. The Registrant had working capital of $1,110,300
at June 30, 1996 compared with $222,400 at December 31, 1995. Total assets
exceeded total liabilities by $1,113,600 at June 30, 1996 compared with $614,700
at December 31, 1995.

The Registrant believes that its cash flow from operations along with its
available line of credit will be sufficient to support operations during the
next twelve months.

Significant Accounting Policies - Income Taxes

Effective as of the beginning of 1993, the Company adopted Statement of
Financial Accounting Standards No. 109, "Accounting for Income Taxes" (SFAS
109), on a prospective basis. The new standard requires an asset and liability
approach for financial accounting and reporting for income taxes. Under this
approach, deferred tax assets and liabilities are recognized for the tax
consequences of temporary differences between the financial reporting and tax
basis of assets and liabilities. See Note 5 of Notes to Interim Consolidated
Financial Statements.

For periods prior to 1993, the Company followed the deferred method prescribed
by Accounting Principles Board Opinion No. 11.

Part II - OTHER INFORMATION

Item 6 - Exhibits and Reports on Form 8-K

a. The following exhibits are filed as part, to the extent indicated herein, in
the Form 10-Q.

<TABLE>
<CAPTION>
EXHIBIT NO.       DESCRIPTION
<S>               <C>
4.6               Form of Subordinated Note and Warrant Purchase Agreement dated
                  as of March 27, 1996 between Registrant and certain investors.

10.19(g)          Amended and Restated Loan and Security Agreement between
                  Registrant as Borrower and Silicon Valley Bank as Lender dated
                  June 5, 1996.
</TABLE>

b. Reports on Form 8-K

   A report on Form 8-K was filed on March 28, 1996 reporting the extension of
   the Registrant's bank line of credit.


                                  Page 9 of 10
<PAGE>   10
                                    SIGNATURE


Pursuant to the requirements 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.


                                            FAFCO, Inc. (Registrant)



DATE:    August 14, 1996                    BY:/s/Alex N. Watt
       -------------------                     ---------------
                                            Alex N. Watt, Vice President -
                                            Finance and Administration and
                                            Chief Financial Officer (Principal
                                            Financial and Accounting Officer


                                 Page 10 of 10
<PAGE>   11
<TABLE>
<CAPTION>
                                                                                                     Subsequently
                                                   ITEMS                                           Numbered Pages
=================================================================================================================
EXHIBIT NO.       DESCRIPTION
<S>               <C>                                                                              <C>
4.6               Form of Subordinated Note and Warrant Purchase Agreement dated as of March 27,          Page 12
                  1996 between Registrant and certain investors.

10.19(g)          Amended and Restated Loan and Security Agreement between Registrant as Borrower         Page 45
                  and Silicon Valley Bank as Lender dated June 5, 1996.
</TABLE>


                                 Page 11 of 10



<PAGE>   1
                                   FAFCO, INC.

                SUBORDINATED NOTE AND WARRANT PURCHASE AGREEMENT

                           DATED AS OF MARCH 27 , 1996



         This Agreement is made as of March 27 , 1996, between FAFCO, Inc., a
California corporation (the "Company"), and the persons and entities (the
"PURCHASERS") listed on the Schedule of Purchasers attached hereto as Exhibit A
(the "SCHEDULE OF PURCHASERS").

                                    SECTION 1

                  SALE OF CONVERTIBLE NOTES AND STOCK WARRANTS

         1.1 The Notes. Each Purchaser severally agrees, on the terms of and
subject to the conditions specified in this Agreement, to lend to the Company
the sum set forth in Column 2 of Exhibit A opposite such Purchaser's name at the
Closing (as defined below). Each Purchaser's loan shall be evidenced by a
promissory note (individually a "NOTE" and collectively the "NOTES"), dated as
of the date of Closing, in the form of Exhibit B.

         1.2 The Warrants. In exchange for the payment of the warrant issuance
price set forth in Column 4 of Exhibit A opposite each Purchaser's name, the
Company agrees to issue to each Purchaser at the Closing a stock purchase
warrant in the form of Exhibit C (individually a "WARRANT" and collectively the
"WARRANTS") exercisable initially for the number of shares of Common Stock
("COMMON") set forth in Column 3 of Exhibit A opposite such Purchaser's name.
The securities issued or issuable upon exercise of the Warrants are referred to
as the "WARRANT COMMON."


                                    SECTION 2

                             CLOSING DATE; DELIVERY.

         2.1 Closing Date. The first closing of the purchase and sale of the
Notes and Warrants hereunder shall be held at the law offices of Wilson,
Sonsini, Goodrich & Rosati, Professional Corporation, 650 Page Mill Road, Palo
Alto, California at 3 p.m., on March 27 1996. Any subsequent closings shall be
held at such other time and place upon which the Company and the Purchasers
participating in such subsequent closing shall agree. The term "CLOSING" and
"CLOSING DATE," as used herein, shall refer to the relevant closing and the date
thereof with respect to the Purchaser being referenced, as shown on the Schedule
of Purchasers attached hereto as Exhibit A.

         2.2 Delivery. At the Closing, the Company will deliver to each
Purchaser a Note in the principal amount set forth opposite such's name in
Column 2 of Exhibit A, and a Warrant initially exercisable for the number of
shares of Common Stock set forth opposite such Purchaser's name in 

                                       1
<PAGE>   2
Column of Exhibit A. At the Closing, each Purchaser shall either deliver the
amount of such Purchaser's Loan as set forth opposite such Purchaser's name in
Column of Exhibit A by check or wire transfer, or shall present for cancellation
a 10% convertible subordinated Note, issued to the Purchaser by the Company and
having a principal amount equal to the amount of the Loans.


                                    SECTION 3

                  REPRESENTATIONS AND WARRANTIES OF HE COMPANY

         Subject to and except as set forth in the Schedule of Exceptions
attached as Exhibit D hereto (the "SCHEDULE OF EXCEPTIONS"), the Company hereby
represents and warrants to the PURCHASERS as follows:

         3.1 Organization and Standing; Articles and By-Laws. The Company is a
corporation duly organized and existing under, and by virtue of, the laws of the
State of California and is in good standing under such laws. The Company has
requisite corporate power to own and operate its properties and assets, and to
carry on its business as presently conducted. The Company is qualified to do
business as a foreign corporation in each jurisdiction where such qualification
is required, except jurisdictions where the failure to be so qualified would not
materially adversely affect the business or financial condition of the Company.

         3.2 Corporate Power. The Company will have at the Closing Date all
requisite legal and corporate power to execute and deliver this Agreement, to
sell and issue the Notes and Warrants hereunder, to issue the Warrant Common
upon exercise of the Warrants and to carry out and perform its obligations under
the terms of this Agreement.

         3.3 Financial Statements and Other Information. The Company has
delivered to each Purchaser the following:

                  (a) Annual Report on Form 10-K for the year ended December 31,
1995, as filed with the Securities and Exchange Commission (the "COMMISSION" of
the "SEC") pursuant to Section 13 of the Securities Exchange Act of 1934, as
amended (the "EXCHANGE ACT"), together with the index to exhibits thereto;

                  (b) Definitive Proxy Statement dated April 10, 1995 for the
Annual Meeting of Shareholders held on April 27, 1995, as filed with the
Commission pursuant to Section 14 of the Exchange Act and Regulation 14A
promulgated thereunder;

                  (c) 1995 Annual Report to Shareholders, as filed with the
Commission pursuant to Section 14 of the Exchange Act and Rule 14a-3(c)
promulgated thereunder;

                  (d) Quarterly Reports on Form 10-Q for the quarters ended
March 31, 1995, June 30, 1995 and September 30, 1995, as filed with the
Commission pursuant to Section 13 of the Exchange Act, together with the indices
to exhibits thereto; and

                                       2
<PAGE>   3
                  (e) Term Sheet including a brief description of the Notes and
Warrants and the use of proceeds from the sale thereof.

         3.4 Authorization. All corporate action on the part of the Company, its
directors and shareholders necessary for the authorization, execution, delivery
and performance of this Agreement by the Company, the authorization, sale,
issuance and delivery of the Notes and the Warrants (and the Common Stock
issuable upon exercise of the Warrants) and the performance of the Company's
obligations hereunder has been taken or will be taken prior to the Closing. This
Agreement, when executed and delivered by the Company, shall constitute a valid
and binding obligation of the Company enforceable in accordance with its terms,
subject to laws of general application relating to bankruptcy, insolvency and
the relief of debtors and rules of law governing specific performance,
injunctive relief or other equitable remedies. The Notes, and the Warrants, when
issued in compliance with the provisions of this Agreement, will be validly
issued and will be free of any liens and encumbrances, and the Warrant Common
has been duly and validly reserved and, when issued in compliance with the
provisions of this Agreement, will be validly issued and will be fully paid and
nonassessable, and will be free of any liens or encumbrances; provided, however,
that the Notes and the Warrants (and the Warrant Common) may be subject to
restrictions on transfer under state and/or federal securities laws and as set
forth herein.

         3.5 Compliance with Other Instruments. The Company is not in violation
of any term of its Articles of Incorporation or Bylaws, as amended, or in
violation of any material agreement, instrument, judgment or decree or, to the
best of its knowledge, any order, statute, rule or regulation applicable to the
Company. The execution, delivery and performance of this Agreement and the
consummation of the transactions contemplated herein will not result in any such
violation or be in conflict with or constitute a default under any such
provision or agreement, and will not accelerate the performance provided by the
terms of any material agreement or instrument to which the Company is a party,
or constitute a default thereunder, or an event which, with the lapse of time or
action by a third party, could result in a default thereof, or result in the
creation of any lien, charge or encumbrance upon any assets or properties of the
Company, which breach, default, lien, charge or encumbrance, singularly or in
the aggregate, would materially and adversely affect the business or property of
the Company.

         3.6 Litigation. There are no actions, suits, proceedings or
investigations pending against the Company or its properties before any court or
governmental agency (nor, to the best of the Company's knowledge, is there any
basis therefor or threat thereof), which, either in any case or in the
aggregate, might result in any material adverse change in the business or
financial condition of the Company or any of its properties or assets, or in any
material impairment of the right or ability of the Company to carry on its
business as now conducted or as proposed to be conducted, or in any material
liability on the part of the Company, and none which questions the validity of
this Agreement or any action taken or to be taken in connection herewith.

                                    SECTION 4

                            INVESTMENT REPRESENTATION

                                       3
<PAGE>   4
         4.1 Investment Representation.

                  (a) The Purchaser understands and confirms that this Agreement
is made with the Purchasers in reliance upon each Purchaser's representation to
the Company that the Notes and Warrants to be received are to be acquired for
investment and not with a view to the sale or distribution of any part thereof,
and that it has no present intention of selling, granting participation in or
otherwise distributing the same, but subject nevertheless to any requirement of
law that the disposition of its property shall at all times be within its
control. By executing this Agreement, each Purchaser further represents that it
does not have any contract, undertaking, agreement or arrangement with any
person to sell, transfer or grant participations to such person or to any third
person, with respect to the Notes, the Warrants, or the Warrant Common.

                  (b) Each Purchaser understands that the Notes, the Warrants
and the Warrant Common are not registered under the Securities Act of 1933, as
amended (the "Act") on the basis that the sale provided for in this Agreement
and the issuance of securities is exempt pursuant to Section 4(2) of the Act and
Regulation D promulgated thereunder, and that the Company's reliance on such
exemption is predicated on the Purchasers' representations set forth herein.

                  (c) Each Purchaser agrees that it will not make a disposition
of the Notes or Warrants purchased hereunder (or the Warrant Common) except in
compliance with Section 6 hereof.

                  (d) Each Purchaser represents that it is able to fend for
itself in the transactions contemplated by this Agreement, has such knowledge
and experience in financial and business matters as to be capable of evaluating
the merits and risks of its investment, has the ability to bear the economic
risks of its investment, and has had all questions which it has asked answered
by the Company.

                  (e) Each Purchaser represents and warrants that, at a
reasonable time prior to the Closing Date, it has been given the opportunity to
ask questions and receive answers concerning the terms and conditions of this
offering, to obtain any additional information which the Company possesses or
can acquire without unreasonable effort or expense that is necessary to verify
the accuracy of the information furnished pursuant to Section 3.3 hereof, and to
discuss the Company and its plans, operations and financial condition with its
officers and that it has heretofore received all such information as it deems
necessary and appropriate to enable it to evaluate the financial risk inherent
in making an investment in the securities of the corporation. It further
represents and warrants that it has received satisfactory and complete
information concerning the business and financial condition of the Company in
response to all inquiries in respect thereof.

                  (f) Each Purchaser understands that the Notes, Warrants and
Warrant Common have not been registered under the Act in reliance upon a
specific exemption therefrom, which exemption depends upon, among other things,
the bona fide nature of its investment intent as expressed herein. In this
connection, the Purchaser understands that, in view of the Securities and
Exchange Commission (the "SEC"), the statutory basis for such exemption may be
unavailable if its representation was predicated solely upon a present intention
to hold these securities for the minimum 

                                       4
<PAGE>   5
capital gains period specified under tax statutes, for a deferred sale, for or
until an increase or decrease in the market price of the Securities, or for a
period of one year or any other fixed period in the future.

                  (g) Each Purchaser further understands that the Notes,
Warrants and Warrant Common must be held indefinitely unless subsequently
registered under the Act or unless an exemption from registration is otherwise
available (such as Rule 144 under the Act). Moreover, the Purchaser understands
that, except as set forth in Section 6 hereof, the Company is under no
obligation to register the Notes, Warrants or Warrant Common. In addition, the
Purchaser understands that the certificates evidencing the Notes, Warrants, and
Warrant Common may be imprinted with a legend which prohibits the transfer of
such securities unless they are registered or such registration is not required
in the opinion of counsel for the Company.

                  (h) Each Purchaser is familiar with the provisions of Rule
144, promulgated under the Act, which, in substance, permits limited public
resale of "restricted securities" acquired, directly or indirectly, from the
issuer thereof (or from an affiliate of such issuer), in a non-public offering
subject to the satisfaction of certain conditions, including among other things:
(1) The availability of certain public information about the Company; (2) the
resale occurring not less than two years after the party has purchased, and made
full payment for, within the meaning of Rule 144, the securities to be sold;
and, in the case of an affiliate, or of a non-affiliate who has held the
securities less than three years, (3) the sale being made through a broker in an
unsolicited "broker transaction" or in transactions directly with a market
maker, as said term is defined under the Exchange Act and the amount of
securities being sold during any three month period not exceeding the specified
limitations stated therein, if applicable. There can be no assurances that the
requirements of Rule 144 will be met, or that the Notes, Warrants or Warrant
Common will ever be saleable.

                  (i) Each Purchaser further understands that at the time the
Purchaser wishes to sell the Notes, Warrants or Warrant Common there may be no
public market upon which to make such a sale, and that, even if such a public
market then exists, the Company may not be satisfying the current public
information requirements of Rule 144, and that, in such event, the Purchaser
would be precluded from selling such securities under Rule 144 even if the
two-year minimum holding period had been satisfied.

                  (j) Each Purchaser further understands that in the event all
of the applicable requirements of Rule 144 are not satisfied, registration under
the Act, compliance with Regulation A, compliance with some other registration
exemption or the notification to the Company of the proposed disposition by it
and the furnishing to the Company of (i) detailed information regarding the
disposition, and (ii) and opinion of its counsel to the effect that such
disposition will not require registration (the Purchaser understands such
counsel's opinion must be acceptable to counsel for the Company) will be
required and that, notwithstanding the fact that Rule 144 is not exclusive, the
Staff of the SEC has expressed its opinion that persons proposing to sell
private placement securities other than in a registered offering and otherwise
than pursuant to Rule 144 will have a substantial burden of proof in
establishing that an exemption from registration is available for such offers or
sales, and that such persons and their respective brokers who participate in
such transactions do so at their own risk.

                                       5
<PAGE>   6
         4.2* Accredited Investor. Each Purchaser represents and warrants that
one or more of the following criteria are applicable to such Purchaser:

                  (a) The Purchaser is a director or executive officer of the
Company;

                  (b) The Purchaser is a natural person who has an individual
net worth or joint net worth with the Purchaser's spouse exceeding $1,000,000 at
the time of purchase;

                  (c) The Purchaser is a natural person who had an individual
income in excess of $200,000 in each of the two most recent years or joint
income with that Purchaser's spouse in excess of $300,000 in each of those years
and who reasonably expects to reach the same level of income in the current
year;

                  (d) The Purchaser is either (i) a bank as defined in Section
3(a)(2) of the Act, or any savings and loan association or other institution as
defined in Section 3(a)(5)(A) of the Act, whether acting in its individual
capacity or fiduciary capacity, (ii) a broker or dealer registered pursuant to
Section 15 of the Exchange Act, (iii) an insurance company as defined in Section
2(13) of the Act, (iv) an investment company registered under the Investment
Company Act of 1940 or a business development company as defined in Section
2(a)(48) of such Act, (v) a Small Business Investment Company licensed by the
U.S. Small Business Administration under Section 301(c) or (d) of the Small
Business Investment Act of 1958, (vi) a plan established and maintained by a
state or its political subdivisions, or any agency or instrumentatility of a
state or its political subdivisions, for the benefit of its employees, which
plan has total assets of $5,000,000, or (vii) an employee benefit plan within
the meaning of the Employee Retirement Income Security Act of 1974, if the
investment decision is made by a plan fiduciary, as defined in Section 3(21) of
such act, which plan fiduciary is either a bank, savings and loan association,
insurance company or registered investment adviser, or which employee benefit
plan has total assets in excess of $5,000,000 or, if a self-directed plan, with
investment decisions made solely by persons that are accredited investors;

                  (e) The Purchaser is a private business development company as
defined in Section 202(a)(22) of the Investment Advisers Act of 1940;

                  (f) Any organization described in section 501(c)(3) of the
Internal Revenue Code, corporation, Massachusetts or similar business trust, or
partnership, not formed for the specific purpose of acquiring the securities
offered, with total assets of $5,000,000;

                  (g) The Purchaser is a not-for-profit organization or other
entity exempt from income tax under Section501(c)(3) of the Internal Revenue
Code, not formed with the specific purpose of acquiring the securities offered
hereunder, with total assets in excess of $5,000,000; or


- --------
         *A PURCHASER UNABLE TO MEET AT LEAST ONE OF THE CRITERIA SET FORTH IN
SECTION 4.2 ABOVE MUST ACKNOWLEDGE SUCH INABILITY BY PLACING ITS INITIALS HERE:
_________________

                                        6
<PAGE>   7
                  (h) The Purchaser is a trust, with total assets in excess of
$5,000,000, not formed for the specific purpose of acquiring the securities
offered hereunder, whose purchase is directed by a person who has such
experience in business and financial matters as to enable such person to
evaluate the merits and risks of acquiring the securities offered hereunder,

                  (i) The Purchaser is an entity in which all of the equity
owners meet the qualifications set forth in (a), (b), (c), (d), (e), (f), (g) or
(h) above.

                  As used in this Section 4.2, the term "net worth" means the
excess of total assets over total liabilities. In computing net worth for
purposes of paragraph (b) above, the principal residence of the Purchaser must
be valued at cost (including cost of improvements), or at a recently appraised
value established by an institutional lender making a secured loan, in either
case net of encumbrances.


                                    SECTION 5

                              CONDITIONS TO CLOSING

         The Purchasers' and the Company's obligations to purchase and to sell
and issue, respectively, the Notes and Warrants at the Closing are subject to
the fulfillment on or prior to the Closing Date of the following conditions:

         5.1 Representations and Warranties of Company Correct. The
representations and warranties made by the Company in Section 3 hereof shall be
true and correct when made, and shall be true and correct on the Closing Date
with the same force and effect as if they had been made on and as of said date.

         5.2 Representations of Purchasers Correct. The representations made by
the Purchasers in Section 4 hereof shall be true and correct when made, and
shall be true and correct on the Closing Date with the same force and effect as
if they had been made on and as of said date.

         5.3 Covenants and Laws. All covenants, agreements and conditions
contained in this Agreement to be performed by the Company on or prior to the
Closing Date shall have been performed or complied with in all respects and the
purchase and sale of the Notes and Warrants pursuant to the terms of this
Agreement shall not violate any law or regulation to which any of the Purchasers
or the Company is subject.

                                    SECTION 6

                 RESTRICTIONS ON TRANSFERABILITY OF SECURITIES;
                         COMPLIANCE WITH SECURITIES ACT

         6.1 Certain Definitions. As used in this Section, the following terms
shall have the following respective meanings:

                                       7
<PAGE>   8
                  "Commission" shall mean the Securities and Exchange Commission
or any other federal agency at the time administering the Act.

                  "Act" shall mean the Securities Act of 1933, as amended, or
any similar federal statute and the rules and regulations of the Commission
thereunder, all as the same shall be in effect at the time.

                  "Restricted Securities" shall mean the Notes, the Warrants and
the Warrant Common required to bear the legend set forth in Section 6.3 hereof.

                  "Registrable Securities" means (i) the Warrant Common, and
(ii) any Common Stock issued in respect of such shares upon any stock split,
stock dividend, recapitalization or similar event, which shares, in each of the
foregoing instances, have not been sold to the public pursuant to Rule 144 under
the Act or otherwise.

                  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 the effectiveness of
such registration statement.

                  "Registration Expenses" shall mean all expenses incurred by
the Company in complying with Section 6.5 hereof, including, without limitation,
all registration and filing fees, printing expenses, fees and disbursements of
counsel for the Company, blue sky fees and expenses, and the expense of any
special audits incident to or required by any such registration.

                  "Selling Expenses" shall mean all underwriting discounts and
selling commissions applicable to the sale and any expenses incurred by a Holder
for its own benefit including all fees and disbursements of counsel to the
Holders participating in the offering (including the allocable portion of the
fees and disbursements of counsel to the Company, if such counsel is also
serving as counsel to the selling shareholders), except those expenses included
in the definition of Registration Expenses.

                  "Holder" shall mean any Purchaser or any permitted transferee
or assignee of such Purchaser pursuant to Section 6.10.

         6.2 Restrictions on Transferability. The Notes, the Warrants and the
Warrant Common shall not be transferable except upon the conditions specified in
this Section, which conditions are intended to insure compliance with the
provisions of the Act. Each Purchaser will cause any proposed transferee of the
Notes, the Warrants or the Warrant Common held by a Purchaser to agree to take
and hold such Notes, Warrants or Warrant Common subject to the provisions and
upon the conditions specified in this Section.

         6.3 Restrictive Legend. Each certificate representing (i) the Notes,
(ii) the Warrants, (iii) shares of Warrant Common, and (iv) any other securities
issued in respect of the Notes, the Warrants or the Warrant Common upon any
stock split, stock dividend, recapitalization, merger, consolidation or similar
event, shall (unless otherwise permitted by the provisions of Section 6.4 below)
be stamped 

                                       8
<PAGE>   9
or otherwise imprinted with a legend in substantially the following form (in
addition to any legend required under applicable state securities laws):

         THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
         1933. THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED
         IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO
         OR AN OPINION OF COUNSEL, REASONABLY SATISFACTORY TO THE COMPANY, THAT
         SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT OF 1933.

         6.4 Notice of Proposed Transfers. Each holder of a certificate
representing Restricted Securities by acceptance thereof agrees to comply in all
respects with the provisions of this Section 6.4. Prior to any proposed transfer
of any Restricted Securities (other than under circumstances described in
Section 6.5 hereof), the holder thereof shall give written notice to the Company
of such holder's intention to effect such transfer. Each such notice shall
describe the manner and circumstances of the proposed transfer in sufficient
detail, and, if requested by the Company, shall be accompanied (except in
transactions in compliance with Rule 144) by an unqualified written opinion of
legal counsel, which opinion shall be addressed to the Company and reasonably
satisfactory in form and substance to the Company's counsel, to the effect that
the proposed transfer of the Restricted Securities may be effected without
registration under the Act. The holder of such Restricted Securities shall be
entitled to transfer such Restricted Securities in accordance with the terms of
such legal opinion (if reasonably acceptable as above provided) and the terms of
the notice delivered by the holder to the Company. Each certificate evidencing
the Restricted Securities transferred as above provided shall bear the
appropriate restrictive legend set forth in Section 6.3 above, except that such
certificate shall not bear such restrictive legend if transferred in compliance
with Rule 144 or if the opinion of counsel referred to above is to the further
effect that such legend is not required in order to establish compliance with
any provisions of the Act.

         6.5 Piggy-Back Registration Rights.

                  (a) Notice of Registration. Whenever the Company proposes to
register any of its Common Stock under the Act for a public offering for cash,
whether as a primary or secondary offering (or pursuant to the registration
rights granted to other holders of securities of the Company), other than a
registration relating to employee benefit plans or in connection with a Rule 145
transaction or equivalent, the Company will:

                           (i) give to each Holder at the address indicated on
the books of the transfer agent written notice of the intent to so register its
securities; and

                           (ii) include in such registration (and any related
qualification under blue sky laws or other compliance), and in any underwriting
involved therein, all the Registrable Securities specified in a written request
or requests delivered to the Company or its legal counsel by any Holder or
Holders within 15 days after the date of mailing of such written notice by the
Company, except as set forth in subparagraphs (b) and (c) below.

                                       9
<PAGE>   10
                  (b) Underwriting. If the registration of which the Company
gives notice is for a registered public offering involving an underwriting, the
Company shall so advise the Holders as a part of the written notice given
pursuant to subparagraph (a)(i) of this Section. In such event the right of any
Holder to registration pursuant to this Section shall be conditioned upon such
Holder's participation in such underwriting and the inclusion of such Holder's
Registrable Securities in the underwriting to the extent provided herein. All
Holders proposing to distribute their securities through such underwriting shall
(together with the Company and the other holders distributing their securities
through such underwriting) enter into an underwriting agreement in customary
form with the underwriter or underwriters selected for such underwriting by the
Company or by holders exercising demand registration rights, as the case may be.
Notwithstanding any other provisions of this Section, if the underwriter
determines that marketing factors require a limitation of the number of shares
to be underwritten, the underwriter may exclude some or all Registrable
Securities from such registration and underwriting. The Company shall so advise
all Holders, and the number of shares of Registrable Securities that may be
included in the registration and underwriting shall be allocated among all
Holders requesting inclusion in such proportion, as nearly as practicable, as
the respective amounts of Registrable Securities entitled to inclusion in such
registration held by such Holders at the time of filing the registration
statement bear to the aggregate amount of such securities held by all such
Holders. To the extent that other persons holding the Company's securities may
possess registration rights with respect to such securities (whether heretofore
or hereafter granted), the total number of shares to be sold by selling
shareholders under a registration statement, if less than the total amount
requested to be sold by such persons, shall be allocated on a pro rata basis
according to the total number of shares held by such persons which are entitled
to registration rights with respect to such offering, subject to the prior
rights set forth in subsection (c) hereof. If any Holder disapproves of the
terms of any such underwriting, he may elect to withdraw therefrom at any time
prior to filing of the registration statement by written notice to the Company
and the underwriter. Any Registrable Securities excluded or withdrawn from such
underwriting shall not be included in such registration.

                  [(c) Prior Rights. Certain holders (the "Prior Holders") of
the Company's Common Stock have registration rights granted pursuant to a Stock
Purchase Agreement dated as of April 14, 1977 (the "Prior Agreement"). In the
event that a registration is effected pursuant to the Prior Holders' demand
rights set forth in Section 6.5 of the Prior Agreement, securities held by the
Holders and others desiring to sell securities in the registration may only be
included to the extent that the amount of securities being registered for the
account of the Prior Holders will not be diminished. In the event of a
registration which is not initiated by a demand of the Prior Holders but with
respect to which such Prior Holders have piggyback rights under Section 6.6 of
the Prior Agreement, the securities to be sold by the Prior Holders may not be
reduced to less than 33-1/3% of the total amount of securities being
registered.]

         6.6 Expenses of Registration. All Registration Expenses incurred in
connection with any registration, qualification or compliance pursuant to this
Section shall be borne by the Company; and all Selling Expenses shall be borne
by the Holders of the securities so registered for whose account such expenses
were incurred.

         6.7 Registration Procedures. In the case of each registration,
qualification or compliance effected by the Company pursuant to this Section,
the Company will advise each participating Holder 

                                       10
<PAGE>   11
as to the filing of the registration statement with the Commission and the
effective date thereof. The Company shall also advise each participating Holder,
concurrently with the notice of effectiveness, of the jurisdictions in which the
securities being registered have been qualified for sale to the public. At its
expense, the Company will:

                  (a) Keep such registration, qualification or compliance
effective for a period of 90 days after effectiveness with the Commission or
until the Holder or Holders have completed the distribution described in the
registration statement relating thereto, whichever first occurs; and

                  (b) Furnish such number of prospectuses and other documents
incident thereto as a Holder from time to time may reasonably request.

         6.8 Indemnification.

                  (a) The Company will indemnify each participating Holder, each
of its officers and directors and partners, and each person controlling such
Holder, with respect to which registration, qualification or compliance has been
effected pursuant to this Section 6, and each underwriter, if any, and each
person who controls any underwriter against all claims, losses, damages and
liabilities (or actions in respect thereof) arising out of or based on any
untrue statement (or alleged untrue statement) of a material fact contained in
any prospectus, offering circular or other document (including any related
registration statement, notification or the like) incident to any such
registration, qualification or compliance, or based on 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, or any violation by the
Company of any rule or regulation promulgated under the Act applicable to the
Company and relating to action or inaction required of the Company in connection
with any such registration, qualification or compliance, and will reimburse each
such Holder, each of its partners, officers and directors, 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 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 action arises
out of or is based on any untrue statement or omission based upon written
information furnished to the Company by an instrument duly executed by such
Holder or underwriter.

                  (b) 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 directors and officers, each legal counsel and independent accountant of the
Company, each underwriter, if any, of the Company's securities covered by such a
registration statement, each person who controls the Company or such underwriter
within the meaning of the Act, and each other such Holder, each of its partners,
officers and directors and each person controlling such Holder, against all
claims, losses, damages and liabilities (or actions in respect thereof) arising
out of or based on any untrue statement (or alleged untrue statement) of a
material fact contained in any such registration statement, prospectus, offering
circular or other document, 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 partners, 

                                       11
<PAGE>   12
directors, officers, persons, underwriters or control persons for
any legal or any other expenses reasonably incurred in connection with
investigating 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 alleged 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 an instrument duly executed by such Holder; provided, however, that
the obligations of such Holders hereunder shall be limited to an amount equal to
the proceeds to each such Holder from the sale of Registrable Securities as
contemplated herein.

                  (c) Each party entitled to indemnification under this Section
(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 such 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 Section. 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.

                  (d) Notwithstanding the foregoing, if the Registrable
Securities are to be distributed by means of an underwritten public offering, to
the extent that the provisions on indemnification and contribution contained in
the underwriting agreement entered into in connection with such underwriting are
in conflict with the foregoing provisions, the provisions in the underwriting
agreement shall be controlling.

         6.9 Information by Holder. The Holder or Holders of Registrable
Securities included in any registration shall furnish to the Company such
information regarding such Holder or Holders and the distribution proposed by
such Holder or Holders as the Company may request in writing and as shall be
required in connection with any registration, qualification or compliance
referred to in this Section 6.

         6.10 Transfer of Piggy-Back Registration Rights. The rights to cause
the Company to register a Purchaser's Registrable Securities, granted hereunder
by the Company, may be assigned to a transferee or assignee of 25,000 or more
shares of Warrant Common (as adjusted to reflect stock splits, stock dividends
and similar events) provided that the Company is given advance written notice by
such Purchaser of said transfer and of the intent to transfer such Purchaser's
registration rights together with such securities, stating the name and address
of said transferee or assignee and identifying the Registrable Securities with
respect to which such registration rights are being assigned, and provided,
further, that no transferee or assignee of any of such Restricted Securities
shall be entitled to the registration rights provided in this Section if such
transferee or assignee would be 

                                       12
<PAGE>   13
permitted to sell all of the Restricted Securities so transferred or assigned to
him within one three-month period pursuant to Rule 144 promulgated under the
Act.

         6.11 "Market Stand-off" Agreement. Any Holder of Registrable Securities
being registered under this Section 6 agrees, if requested by the Company or an
underwriter of such registered public offering, not to sell or otherwise
transfer or dispose of any Common Stock (or other securities) of the Company
held by such Holder during a period of up to 180 days following the effective
date of the registration statement of the Company filed under the Act, provided
that all officers and directors of the Company enter into similar agreements.
Such agreement shall be in writing in the form satisfactory to the Company and
such underwriter, and may be included in the underwriting agreement. The Company
may impose stop-transfer instructions with respect to the securities subject to
the foregoing restriction until the end of the required stand-off period.

         6.12 Termination of Registration Rights. The rights granted under this
Section shall terminate as to any Purchaser or permissible transferee or
assignee of such rights if such person would be permitted to sell all of the
Restricted Securities held by such person within one three-month period pursuant
to Rule 144 promulgated under the Act.


                                    SECTION 7

                                  MISCELLANEOUS

         7.1 Agreement Is Entire Contract. This Agreement, the Exhibits hereto
and the other documents delivered pursuant hereto constitute the entire contract
between the parties hereto and no party shall be liable or bound to the other in
any manner by any warranties, representations or covenants except as
specifically set forth herein. The terms and conditions of this Agreement shall
inure to the benefit of and be binding upon the respective successors and
assigns of the parties hereto. Nothing in this Agreement, express or implied, is
intended to confer upon any party, other than the parties hereto, and their
respective successors and assigns, any rights, remedies, obligations or
liabilities under or by reason of this Agreement, except as expressly provided
herein.

         7.2 Amendment by Agreement. Any provision of this Agreement may be
amended or waived by a written instrument signed by the Company and by a
majority in interest of the holders of the Warrants (on an as-if-exercised
basis) and the Warrant Common.

         7.3 Notices. Any notice, request or other communication required or
permitted hereunder shall be in writing and shall be deemed to have been duly
given if personally delivered, sent by facsimile or mailed by registered or
certified mail, postage prepaid, or by recognized overnight courier or personal
delivery at the respective addresses or facsimile phone number of the parties as
set forth below. Any party hereto may by notice so given change its address for
future notice hereunder. Notice shall conclusively be deemed to have been given
when received.

      If to a Purchaser:  At the address set forth in the Schedule of Purchasers

                                       13
<PAGE>   14
      If to Company:      FAFCO, Inc.
                          2690 Middlefield Road
                          Redwood City, CA 94063
                          Attention: Alex N. Watt, Chief Financial Officer

      With a copy to:     Ann Yvonne Walker, Esq.
                          Wilson, Sonsini, Goodrich & Rosati, P.C.
                          650 Page Mill Road
                          Palo Alto, CA 94304

Each of the above addressees may change its address for purposes of this
paragraph by giving to the other addressee notice of such new address in
conformance with this paragraph.

         7.4 Agent's Fees.

                  (a) The Company hereby agrees to indemnify and to hold each
Purchaser harmless of and from any liability for commission or compensation in
the nature of an agent's fee to any broker or other person or firm (and the
costs and expenses of defending against such liability or asserted liability)
for which the Company, or any of its employees or representatives, is
responsible.

                  (b) Each Purchaser (i) represents and warrants that no finders
or brokers have been retained in connection with the transactions contemplated
by this Agreement, and (ii) hereby agrees to indemnify and to hold the Company
and the Purchasers (other than himself) harmless of and from any liability for
any commission or compensation in the nature of an agent's fee to any broker or
other person or firm (and the costs and expenses of defending against such
liability or asserted liability) for which such Purchaser, or any of his
employees or representatives, are responsible.

         7.5 Severability. If one or more provisions of this Agreement are held
to be unenforceable under applicable law, such provision shall be severed from
this Agreement as if such provision were not included and the balance of this
Agreement shall be enforceable in accordance with its terms.

         7.6 Expenses. The Company and each Purchaser shall bear its own
expenses and legal fees incurred on its behalf with respect to this Agreement
and the transactions contemplated hereby.

         7.7 California Corporate Securities Law. THE SALE OF THE SECURITIES
WHICH ARE THE SUBJECT OF THIS AGREEMENT HAS NOT BEEN QUALIFIED WITH THE
COMMISSIONER OF CORPORATIONS OF THE STATE OF CALIFORNIA AND THE ISSUANCE OF SUCH
SECURITIES OR THE PAYMENT OR RECEIPT OF ANY PART OF THE CONSIDERATION THEREFOR
PRIOR TO SUCH QUALIFICATION, OR EXEMPTION THEREFROM, IS UNLAWFUL. THE RIGHTS OF
ALL PARTIES TO THIS AGREEMENT ARE EXPRESSLY CONDITIONED UPON SUCH QUALIFICATION,
OR EXEMPTION THEREFROM, BEING OBTAINED.

         7.8 Governing Law. This Agreement shall be governed by and construed
under the laws of the State of California.

                                       14
<PAGE>   15
         7.9 Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the date first above written.

FAFCO, INC.                            PURCHASERS:

By:_______________________________     ______________________________

Title:____________________________

                                       15


<PAGE>   16
                                   EXHIBIT "A"

                    SUBORDINATED NOTE AND PURCHASE AGREEMENT

<TABLE>
<CAPTION>
Name                     Amount Lent                  Number of Warrant Shares
- ----                     -----------                  ------------------------
<S>                      <C>                          <C>

</TABLE>

<PAGE>   17
                                   EXHIBIT "B"


                  THIS NOTE AND THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN
                  REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR
                  QUALIFIED UNDER APPLICABLE STATE SECURITIES LAWS. THEY MAY NOT
                  BE OFFERED FOR SALE, SOLD OR OTHERWISE TRANSFERRED IN THE
                  ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT AS TO THE
                  SECURITIES UNDER SAID ACT OR AN OPINION OF COUNSEL
                  SATISFACTORY TO THE CORPORATION THAT SUCH REGISTRATION AND
                  QUALIFICATION IS NOT REQUIRED.


                        11% SUBORDINATED PROMISSORY NOTE


$*                                                               March 27, 1996
- -                                                      Redwood City, California


         FOR VALUE RECEIVED, FAFCO, Inc., a California corporation (the
"Company") promises to pay to _______________, ("Lender"), or its registered
assigns, the principal sum of ____________ Dollars ($____), or such lesser
amount as shall equal the outstanding principal amount hereof, together with
interest from the date of this Note on the unpaid principal balance at a rate
equal to eleven percent (11.0%) per annum, computed on the basis of the actual
number of days elapsed and a year of 365 days. All unpaid principal, together
with any then unpaid and accrued interest and other amounts payable hereunder,
shall be due and payable on March 27, 2000 (the "Payment Date"). Accrued
interest shall be payable on January 1, April 1, July 1 and October 1 of each
year, commencing July 1, 1996, the last payment of any accrued and unpaid
interest to be made together with payment of the principal on the Payment Date.
This Note may be prepaid only in accordance with Section 4 below.

         This Note is issued pursuant to a Subordinated Note and Warrant
Purchase Agreement dated as of April 13, 1996 (the "Purchase Agreement") between
the Company and the purchasers listed on the Schedule of Purchasers to such
Purchase Agreement, and is subject to the terms and provisions of the Purchase
Agreement, a copy of which may be obtained from the Company at its principal
executive offices.

         The following is a statement of the rights of Lender and the conditions
to which this Note is subject, and to which Lender, by the acceptance of this
Note, agrees:

                  1. DEFINITIONS. As used in this Note, the following
capitalized terms have the following meanings:

                           (a) "Articles" shall mean the Articles of
Incorporation of Company, as amended and/or restated from time to time.

                           (b) "Company" includes the corporation initially
executing this Note and any Person that shall succeed to or assume the
obligations of Company under this Note.

                                        1

<PAGE>   18
                           (c) "Event of Default" has the meaning given in
Section 2 hereof.

                           (d) "Lender" shall mean the Person specified in the
introductory paragraph of this Note or any Person who shall at the time be the
registered holder of this Note.

                           (e) "Person" shall mean and include an individual, a
partnership, a corporation (including a business trust), a joint stock company,
a limited liability company, an unincorporated association, a joint venture or
other entity or a governmental authority.

                  2. EVENTS OF DEFAULT. The occurrence of any of the following
shall constitute an "Event of Default" under this Note.

                           (a) Failure to Pay. Company shall fail to pay any
principal, interest or other payment due hereunder within ten (10) days of
Company's receipt of Lender's written demand; or

                           (b) Voluntary Bankruptcy or Insolvency Proceedings.
Company shall (i)apply for or consent to the appointment of a receiver, trustee,
liquidator or custodian of itself or of all or a substantial part of its
property, (ii) be unable, or admit in writing its inability, to pay its debts
generally as they mature, (iii) make a general assignment for the benefit of its
or any of its creditors, (iv) be dissolved or liquidated in full or in part, (v)
become insolvent (as such term may be defined or interpreted under any
applicable statute), (vi) commence a voluntary case or other proceeding seeking
liquidation, reorganization or other relief with respect to itself or its debts
under any bankruptcy, insolvency or other similar law now or hereafter in effect
or consent to any such relief or to the appointment of or taking possession of
its property by any official in an involuntary case or other proceeding
commenced against it or (vii) take any action for the purpose of effecting any
of the foregoing; or

                           (c) Involuntary Bankruptcy or Insolvency Proceedings.
Proceedings for the appointment of a receiver, trustee, liquidator or custodian
of Company or of all or a substantial part of the property thereof, or an
involuntary case or other proceedings seeking liquidation, reorganization or
other relief with respect to Company or the debts thereof under any bankruptcy,
insolvency or other similar law now or hereafter in effect shall be commenced
and an order for relief entered or such proceeding shall not be dismissed or
discharged within ninety (90) days of commencement.

                  3. RIGHTS OF LENDER UPON DEFAULT. Upon the occurrence or
existence of an Event of Default described in Paragraph 2(a) and at any time
thereafter during the continuance of such Event of Default, Lender may, by
written notice to Company, declare all outstanding amounts payable by Company
hereunder to be immediately due and payable without presentment, demand, protest
or any other notice of any kind, all of which are hereby expressly waived,
anything contained herein to the contrary notwithstanding. Upon the occurrence
or existence of any Event of Default described in Paragraphs 2(b) and 2(c),
immediately and without notice, all outstanding amounts payable by Company
hereunder shall automatically become immediately due and payable, without
presentment, demand, protest or any other notice of any kind, all of which are
hereby expressly waived, anything contained herein to the contrary
notwithstanding. In addition to the foregoing remedies, upon the occurrence or
existence of any Event of Default, Lender may exercise any other right, power or
remedy permitted to it by law, either by suit in equity or by action at law, or
both.

                  4. REDEMPTION.

                           4.1 Right of Redemption. The Company or its
successor, as the case may be, may, at its own option, redeem and prepay in
whole the principal amount, plus accrued interest to the date of payment, of
this Note.

                                        2
<PAGE>   19
                           4.2 Redemption Premium. In the event that the Company
redeems this Note prior to the Payment Date, the Company shall issue to the
Lender a warrant (the "Premium Warrant") to purchase one share of the Company's
Common Stock for each $10.00 in principal amount of this Note that is so
redeemed. Such Premium Warrant shall be in the form of Exhibit A hereto and
shall have an exercise price equal to [$0.125] per share.

                           4.3 Notice of Redemption. Notice of redemption shall
be given by first class mail, postage prepaid, mailed not less than thirty (30)
calendar days prior to the date fixed for such redemption (the "Redemption
Date") to each Lender at the Lender's address last appearing on the register
kept at the Office of the Company for registration and transfers of the Notes.
Such notice shall specify the redemption price of the Note (the "Redemption
Price"), which shall be the principal amount of this Note plus the accrued
interest on such principal amount to the Redemption Date.

                           4.4 Note Payable on Redemption Date. Notice of
redemption having been given as aforesaid, the Note to be so redeemed shall, on
the Redemption Date, become due and payable in full, and on and after the
Redemption Date (unless the Company shall default in the payment of the
Redemption Price), such Note shall no longer be considered outstanding. Upon
surrender of any Note for redemption in accordance with said notice, such Note
shall be paid by the Company at the Redemption Price on the Redemption Date. If
any Note called for redemption shall not be so paid upon surrender thereof for
redemption, the Note shall remain outstanding and the outstanding principal
amount shall, until paid, continue to bear interest from the Redemption Date at
the rate borne by the Note. No interest shall accrue on any Note following the
Redemption Date.

                           4.5 Selection of Notes to be Redeemed. All of the
Notes issued pursuant to the Purchase Agreement shall rank equally without
preference or priority of any kind over one another, and all payments on account
of principal and interest shall be applied ratably and proportionately on all
outstanding Notes on the basis of the principal amount of outstanding
indebtedness represented thereby.

                           4.6 Prepayment. Except as set forth in this Section
4, this Note may not be prepaid in whole or in part at any time.

                  5. REPRESENTATIONS AND WARRANTIES OF LENDER. In addition to
the representations and warranties contained in Section 4 of the Purchase
Agreement, by its acceptance hereof, the Lender represents and warrants to
Company that:

                           (a) Securities Law Compliance. Lender has been
advised that this Note has not been registered under the Securities Act of 1933,
as amended (the Act) and, therefore, cannot be resold unless it is registered
under the Act and qualified under applicable state securities laws or unless an
exemption from such registration and qualification requirements is available.
Lender is aware that Company is under no obligation to effect any such
registration and qualification with respect to this Note or to file for or
comply with any exemption from registration and qualification. Lender has not
been formed solely for the purpose of making this investment and is acquiring
this Note for its own account for investment, not as a nominee or agent, and not
with a view to, or for resale in connection with, the distribution thereof.
Lender has such knowledge and experience in financial and business matters that
such Lender is capable of evaluating the merits and risks of such investment, is
able to incur a complete loss of such investment and is able to bear the
economic risk of such investment for an indefinite period of time. Lender is an
accredited investor as such term is defined in Rule 501 of Regulation D under
the Act.

                           (b) Access to Information. Lender acknowledges that
Company has given Lender access to all documents and other information required
for Lender to make an informed decision with respect to the purchase of this
Note. 

                                        3
<PAGE>   20
                  6. SUBORDINATION.

                           (a) "Senior Indebtedness" means the principal of and
premium, if any, and interest on indebtedness of the Company for money borrowed
from commercial banks, equipment lessors or other financial institutions under a
secured or unsecured line of credit, term loan or equipment lease.

                           (b) The Company agrees and the holder of this Note,
by acceptance hereof, agrees, expressly for the benefit of the present and
future holders of Senior Indebtedness, that, except as otherwise provided
herein, upon (i) an event of default under any Senior Indebtedness, or (ii) any
dissolution, winding up or liquidation of the Company, whether or not in
bankruptcy, insolvency or receivership proceedings, the Company shall not pay,
and the holder of such Note shall not be entitled to receive, any amount in
respect of the principal and interest of such Note unless and until the Senior
Indebtedness shall have been paid or otherwise discharged. Upon (1) an event of
default under any Senior Indebtedness, or (2) any dissolution, winding up or
liquidation of the Company, any payment or distribution of assets of the
Company, which the holder of this Note would be entitled to receive but for the
provisions hereof, shall be paid by the liquidating trustee or agent or other
person making such payment or distribution directly to the holders of Senior
Indebtedness ratably according to the aggregate amounts remaining unpaid on
Senior Indebtedness after giving effect to any concurrent payment or
distribution to the holders of Senior Indebtedness. Subject to the payment in
full of the Senior Indebtedness and until this Note is paid in full, the holder
of this Note shall be subrogated to the rights of the holders of the Senior
Indebtedness (to the extent of payments or distributions previously made to the
holders of Senior Indebtedness pursuant to this paragraph 6(b)) to receive
payments or distributions of assets of the Company applicable to the Senior
Indebtedness.

                           (c) This Section 6 is not intended to impair, as
between the Company, its creditors (other than the holders of Senior
Indebtedness) and the holder of this Note, the unconditional and absolute
obligation of the Company to pay the principal of and interest on the Note or
affect the relative rights of the holder of this Note and the other creditors of
the Company, other than the holders of Senior Indebtedness. Nothing in this Note
shall prevent the holder of this Note from exercising all remedies otherwise
permitted by applicable law upon default under the Note, subject to the rights,
if any, of the holders of Senior Indebtedness in respect to cash, property or
securities of the Company received upon the exercise of any such remedy.

                  7. SUCCESSORS AND ASSIGNS. Subject to the restrictions on
transfer described in Sections 9 and 10 below, the rights and obligations of
Company and Lender shall be binding upon and benefit the successors, assigns,
heirs, administrators and transferees of the parties.

                  8. AMENDMENTS WITH CONSENT OF HOLDERS. With the written
consent of the Holders of not less than a majority in principal amount of
outstanding Notes issued pursuant to the Purchase Agreement, the Company may
amend this or any other Note by executing and delivering to the Lenders an
amendment thereto for the purpose of adding any provisions to or changing in any
manner or eliminating any of the provisions of the Notes or of modifying in any
manner the rights of the Lenders; provided, however, that no such amendment
shall, without the consent of the Lender of this Note affected thereby, change
the maturity of the principal of, or any installment of interest on, the Note,
or reduce the principal amount thereof or the interest thereon or payable upon
the redemption thereof or impair the right to institute suit for the enforcement
of any such payment on or after the maturity thereof (or, in the case of
redemption, on or after the Redemption Date).

                  9. TRANSFER OF THIS NOTE. Transfers of this Note may only be
made in compliance with the provisions of the Purchase Agreement, which are
incorporated herein by reference. With respect to any offer, sale or other
disposition of this Note, Lender will give written notice to Company prior
thereto, describing briefly the manner thereof, together with a written opinion
of Lender's counsel, to the effect that such offer, sale or other distribution
may be effected without registration or qualification (under any federal or
state law then in effect). 

                                        4
<PAGE>   21
Promptly upon receiving such written notice and reasonably satisfactory opinion,
if so requested, Company, as promptly as practicable, shall notify Lender that
Lender may sell or otherwise dispose of this Note, all in accordance with the
terms of the notice delivered to Company. If a determination has been made
pursuant to this Section 9 that the opinion of counsel for Lender is not
reasonably satisfactory to Company, Company shall so notify Lender promptly
after such determination has been made. Each Note thus transferred and each
certificate representing the securities thus transferred shall bear a legend as
to the applicable restrictions on transferability in order to ensure compliance
with the Act, unless in the opinion of counsel for Company such legend is not
required in order to ensure compliance with the Act. Company may issue stop
transfer instructions to its transfer agent in connection with such
restrictions. Subject to the foregoing, transfers of this Note shall be
registered upon registration books maintained for such purpose by or on behalf
of the Company. Prior to presentation of this Note for registration of transfer,
Company shall treat the registered holder hereof as the owner and holder of this
Note for the purpose of receiving all payments of principal and interest hereon
and for all other purposes whatsoever, whether or not this Note shall be overdue
and Company shall not be affected by notice to the contrary.

                  10. ASSIGNMENT BY COMPANY. Neither this Note nor any of the
rights, interests or obligations hereunder may be assigned, other than by
operation of law (such as in a merger), in whole or in part, by Company without
the prior written consent of Lender.

                  11. NOTICES. Any notice, request or other communication
required or permitted hereunder shall be in writing and shall be deemed to have
been duly given if personally delivered, sent by facsimile or mailed by
registered or certified mail, postage prepaid, or by recognized overnight
courier or personal delivery at the respective addresses or facsimile phone
number of the parties as set forth below. Any party hereto may by notice so
given change its address for future notice hereunder. Notice shall conclusively
be deemed to have been given when received.

                  If to Lender:     At the address set forth in the Schedule of 
                                    Purchasers to the Purchase Agreement.

                  If to Company:    FAFCO, Inc.
                                    2690 Middlefield Road
                                    Redwood City, CA 94063
                                    Attention: Alex N. Watt, 
                                    Chief Financial Officer

                  With a copy to:   Ann Yvonne Walker, Esq.
                                    Wilson, Sonsini, Goodrich & Rosati, P.C.
                                    650 Page Mill Road
                                    Palo Alto, CA 94304

Each of the above addressees may change its address for purposes of this
paragraph by giving to the other addressee notice of such new address in
conformance with this paragraph.

                  12. PAYMENT. Payment shall be made in lawful tender of the
United States.

                  13. DEFAULT RATE; USURY. In the event that any payment of
principal or interest provided for herein is not paid by Company when due
(including the entire unpaid balance of this Note in the event such amount is
made immediately due and payable pursuant to the terms hereof), then Company
shall pay interest on the such amounts not paid when due at a rate per annum two
percent (2%) higher than the rate otherwise applicable hereunder. In the event
any interest is paid on this Note which is deemed to be in excess of the then
legal maximum rate, then that portion of the interest payment representing an
amount in excess of the then legal maximum rate shall be deemed a payment of
principal and applied against the principal of this Note.

                                       5
<PAGE>   22
                  14. EXPENSES; WAIVERS. If action is instituted to collect this
Note, Company promises to pay all costs and expenses, including, without
limitation, reasonable attorneys' fees and costs, incurred in connection with
such action. Company hereby waives notice of default, presentment or demand for
payment, protest or notice of nonpayment or dishonor and all other notices or
demands relative to this instrument. No delay on the part of Lender in
exercising any right hereunder shall operate as a waiver of such right or any
other right.

                  15. GOVERNING LAW. This Note and all actions arising out of or
in connection with this Note shall be governed by and construed in accordance
with the laws of the State of California, without regard to the conflicts of law
provisions of the State of California or of any other state.

                                        6
<PAGE>   23
IN WITNESS WHEREOF, Company has caused this Note to be issued as of the date
first written above.


                                       FAFCO, INC.
                                       a California corporation



                                       By:__________________________________

                                       Name:________________________________

                                       Title:_______________________________



ACKNOWLEDGED AND AGREED TO:

"LENDER"

_____________________________________


By:__________________________________

Title:_______________________________

                                        7


<PAGE>   24
                                   EXHIBIT "C"

         THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
         1933. THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED, OR HYPOTHECATED
         IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO
         OR AN OPINION OF COUNSEL, REASONABLY SATISFACTORY TO THE COMPANY THAT
         SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT OF 1933.


                                     WARRANT
                      TO PURCHASE SHARES OF COMMON STOCK OF
                                   FAFCO, INC.


         THIS CERTIFIES that, for value received Freeman A. Ford ("Ford"), is
entitled, upon the terms and subject to the conditions hereinafter set forth, to
purchase from FAFCO, Inc., a California corporation (the "Company"), that number
of fully paid and nonassessable shares of the Company's Common Stock at the
purchase price per share as set forth in Section 1 below ("Exercise Price"). The
number of shares and Exercise Price are subject to adjustment as provided in
Section 10 hereof.

         1. Number of Shares; Exercise Price; Term.

                  (a) Subject to adjustments as provided herein, this Warrant is
exercisable for __________ shares (the :"Shares") of the Company's Common Stock
at a purchase price of $0.125 per share, in accordance with the vesting schedule
set forth in Section 1(b) hereof.

                  (b) Subject to the terms and conditions set forth herein, this
Warrant shall be immediately exercisable as to twenty percent (20%) of the
Shares. This Warrant shall become exercisable as to an additional twenty percent
(20%) of the Shares on each of the first, second, third and fourth anniversaries
of the issuance hereof. This Warrant shall cease to be exercisable on March 27,
2000.

         2. Title to Warrant. This Warrant and all rights hereunder are
transferable, in whole or in part, but only with the prior written consent of
the Company. Transfers shall occur at the office or agency of the Company by the
holder hereof in person or by duly authorized attorney, upon surrender of this
Warrant together with the Assignment Form annexed hereto properly endorsed.

         3. Exercise of Warrant. The purchase rights represented by this Warrant
are exercisable by the registered holder hereof, in whole or in part, at any
time, or from time to time, during the term hereof as described in Section l
above, by the surrender of this Warrant and the Notice of Exercise and
Investment Representation Statement annexed hereto duly completed and executed
on behalf of the holder hereof, at the office of the Company in Redwood City,
California (or such other office or agency of the Company as it may designate by
notice in writing to the registered holder hereof at the address of such holder
appearing on the books of the Company), and subject to Section 4 hereof, 

                                        1
<PAGE>   25
upon payment of the purchase price, the holder of this Warrant shall be entitled
to receive a certificate for the number of shares so purchased and, if this
Warrant is exercised in part, an amended Warrant for the unexercised portion of
this Warrant. The Company agrees that, upon exercise of this Warrant in
accordance with the terms hereof, the shares so purchased shall be deemed to be
issued to such holder as the record owner of such shares as of the close of
business on the date on which this Warrant shall have been exercised.

         Payment of the aggregate Purchase Price may be by any of the following
methods, at the election of the holder of this Warrant:

         (a) Cash;

         (b) Check;

         (c) By surrender of a fraction of this Warrant ("Net Issuance") equal
to B/A, where A is the Fair Market Value (as hereinafter defined) of one (1)
share of Common Stock of the Company, and B is the Exercise Price; or

         (d) Any combination of the foregoing.

         For purposes of Section 3(c), Fair Market Value shall mean

         (i) if the Company's Common Stock is traded on a national exchange or
the Nasdaq Stock Market, the average of the closing prices of the Company's
Common Stock over the five business day period immediately preceding the date of
exercise; or

         (ii) if the Company's Common Stock is traded in the non-NASDAQ
over-the-counter market, the averages of the closing bid and asked prices for
the Company's Common Stock over the five business day period immediately
preceding the date of exercise.

         Certificates for shares purchased hereunder shall be issued by the
Company promptly and in no event later than twenty-one (21) days after the date
of exercise, and, on partial exercise of this Warrant, an amended Warrant for
the unexercised portion of this Warrant shall be delivered to the holder hereof
as promptly as practicable after the date on which this Warrant shall have been
exercised. All other terms and conditions of such amended Warrant shall be
identical to those contained herein.

         The Company covenants that all shares which may be issued upon the
exercise of rights represented by this Warrant will, upon exercise of the rights
represented by this Warrant and payment of the aggregate Exercise Price, be
fully paid and nonassessable and free from all taxes, liens and charges in
respect of the issue thereof (other than taxes in respect of any transfer
occurring contemporaneously or otherwise specified herein).

         4. No Fractional Shares or Scrip. No fractional shares or scrip
representing fractional shares shall be issued upon the exercise of this
Warrant. In lieu of any fractional share to which such holder would otherwise be
entitled, such holder shall be entitled, at its option, to receive either (i) a

                                        2
<PAGE>   26
cash payment equal to the excess of fair market value for such fractional share
above the Exercise Price for such fractional share (as mutually determined by
the Company and the holder) or (ii) a whole share if the holder tenders the
Exercise Price for one whole share.

         5. Charges, Taxes and Expenses. Issuance of certificates for shares
upon the exercise of this Warrant shall be made without charge to the holder
hereof for any issue or transfer tax or other incidental expense in respect of
the issuance of such certificates, all of which taxes and expenses shall be paid
by the Company, and such certificates shall be issued in the name of the holder
of this Warrant or in such name or names as may be directed by the holder of
this Warrant (with the prior written consent of the Company); provided, however,
that in the event certificates for shares are to be issued in a name other than
the name of the holder of this Warrant, this Warrant when surrendered for
exercise shall be accompanied by the Assignment Form attached hereto duly
executed by the holder hereof and the Notice of Exercise duly completed and
executed and stating in whose name and certificates are to be issued; and
provided further, that such assignment shall be subject to applicable laws and
regulations. Upon any transfer involved in the issuance or delivery of any
certificates for shares of the Company's securities, the Company may require, as
a condition thereto, the payment of a sum sufficient to reimburse it for any
transfer tax incidental thereto.

         6. No Rights as Shareholders. This Warrant does not entitle the holder
hereof to any voting rights, dividend rights or other rights as a shareholder of
the Company prior to the exercise hereof.

         7. Exchange and Registry of Warrant. The Company shall maintain a
registry showing the name and address of the registered holder of this Warrant.
This Warrant may be surrendered for exchange, transfer or exercise, in
accordance with its terms, at the office of the Company, and the Company shall
be entitled to rely in all respects, prior to written notice to the contrary,
upon such registry.

         8. Loss, Theft, Destruction or Mutilation of Warrant. Upon receipt by
the Company of evidence reasonably satisfactory to it of the loss, theft,
destruction or mutilation of this Warrant, and in case of loss, theft or
destruction, of indemnity or security reasonably satisfactory to it, and upon
reimbursement to the Company of all reasonable expenses incidental thereto, and
upon surrender and cancellation of this Warrant, if mutilated, the Company will
make and deliver a new Warrant of like tenor and dated as of such cancellation,
in lieu of this Warrant.

         9. Saturdays, Sundays, Holidays, etc. If the last or appointed day for
the taking of any action or the expiration of any right required or granted
herein shall be a Saturday or a Sunday or shall be a legal holiday, then such
action may be taken or such right may be exercised on the next succeeding day
not a Saturday or a Sunday or a legal holiday.

         10. Adjustments and Termination of Rights. The purchase price per share
and the number of shares purchasable hereunder are subject to adjustment from
time to time as follows:

                  (a) Merger. If at any time there shall be a merger or
consolidation of the Company with or into another corporation when the Company
is not the surviving corporation, then, as a part of such merger or
consolidation, lawful provision shall be made so that the holder of this

                                        3
<PAGE>   27
Warrant shall thereafter be entitled to receive upon exercise of this Warrant,
during the period specified herein and upon payment of the aggregate Exercise
Price then in effect, the number of shares of stock or other securities or
property of the successor corporation resulting from such merger or
consolidation, to which a holder of the stock deliverable upon exercise of this
Warrant would have been entitled in such merger or consolidation if this Warrant
had been exercised immediately before such merger or consolidation. In any such
case, appropriate adjustment shall be made in the application of the provisions
of this Warrant with respect to the rights and interests of the holder after the
merger or consolidation.

                  (b) Reclassification, etc. If the Company at any time shall,
by subdivision, combination or reclassification of securities or otherwise,
change any of the securities as to which purchase rights under this Warrant
exist into the same or a different number of securities of any other class or
classes, this Warrant shall thereafter represent the right to acquire such
number and kind of securities as would have been issuable as the result of such
change with respect to the securities which were subject to the purchase rights
under this Warrant immediately prior to such subdivision, combination,
reclassification or other change.

                  (c) Split, Subdivision or Combination of Shares. If the
Company at any time while this Warrant remains outstanding and unexpired shall
split, subdivide or combine the securities as to which purchase rights under
this Warrant exist, the Exercise Price shall be proportionately decreased in the
case of a split or subdivision or proportionately increased in the case of a
combination.

                  (d) Adjustment of Number of Shares. Upon each adjustment in
the Exercise Price pursuant to 10(c) above, the number of shares purchasable
hereunder shall be adjusted, to the nearest whole share, to the product obtained
by multiplying the number of shares purchasable immediately prior to such
adjustment in the Exercise Price by a fraction (i) the numerator of which shall
be the Exercise Price immediately prior to such adjustment, and (ii) the
denominator of which shall be the Exercise Price immediately after such
adjustment.

         11. Notice of Adjustments; Notices. Whenever the Exercise Price or
number of shares purchasable hereunder shall be adjusted pursuant to Section 10
hereof, the Company shall issue a certificate signed by its Chief Executive
Officer setting forth, in reasonable detail, the event requiring the adjustment,
the amount of the adjustment, the method by which such adjustment was calculated
and the Exercise Price and number of shares purchasable here under after giving
effect to such adjustment, and shall cause a copy of such certificate to be
mailed (by first class mail, postage prepaid) to the holder of this Warrant.

                                        4
<PAGE>   28
         12. Miscellaneous.

                  (a) Governing Law. This Warrant shall be binding upon any
successors or assigns of the Company. This Warrant shall constitute a contract
under the laws of California and for all purposes shall be construed in
accordance with and governed by the laws of said state, without giving effect to
the conflict of laws principles.

                  (b) Restrictions. THESE SECURITIES HAVE NOT BEEN REGISTERED
UNDER THE SECURITIES ACT OF 1933. THEY MAY NOT BE SOLD, OFFERED FOR SALE,
PLEDGED, OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT
RELATED THERETO OR AN OPINION OF COUNSEL, REASONABLY SATISFACTORY TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT OF 1933.

                  (c) Attorney's Fees. In any litigation, arbitration or court
proceeding between the Company and the holder relating hereto, the prevailing
party shall be entitled to reasonable attorneys' fees and expenses incurred in
enforcing this Warrant.

                  (d) Amendments. This Warrant may be amended and the observance
of any term of this Warrant may be waived only with the written consent of the
Company and the then holders of Warrants exercisable for a majority of the
shares of the Company's Common Stock then issuable upon exercise of all
outstanding unexercised Warrants sold pursuant to the Purchase Agreement.

                  (e) Notice. Any notice required or permitted hereunder shall
be deemed effectively given upon personal delivery to the party to be notified
or upon deposit with the United States Post Office, by certified mail, postage
prepaid and addressed to the party to be notified at the address indicated below
for such party, or at such other address as such other party may designate by
ten-day advance written notice

                                       5
<PAGE>   29
                  IN WITNESS WHEREOF, FAFCO, Inc. has caused this Warrant to be
executed by its officer thereunto duly authorized.


Dated:_________________________, 1996.

                                       FAFCO, INC.



                                          By:__________________________________
                                          Alex N. Watt, Chief Financial Officer

WARRANT HOLDER:


___________________________________________
Print Name

___________________________________________
Street Address

___________________________________________
City            State              Zip Code

                               NOTICE OF EXERCISE


To: FAFCO, Inc.

         1. The undersigned hereby elects to purchase 50,000 shares of Common
Stock ("Stock") of FAFCO, Inc. (the "Company") pursuant to the terms of the
attached Warrant, and tenders herewith payment of the purchase price and any
transfer taxes payable pursuant to the terms of the Warrant, together with an
Investment Representation Statement in form and substance satisfactory to legal
counsel to the Company.

         2. The shares of Stock to be received by the undersigned upon exercise
of the Warrant are being acquired for its own account, not as a nominee or
agent, and not with a view to resale or distribution of any part thereof, and
the undersigned has no present intention of selling, granting any participation
in, or otherwise distributing the same. The undersigned further represents that
it does not have any contract, undertaking, agreement or arrangement with any
person to sell, transfer or grant participation to such person or to any third
person, with respect to the Stock. The undersigned believes it has received all
the information it considers necessary or appropriate for deciding whether to
purchase the Stock.

                                        6
<PAGE>   30
         3. The undersigned understands that the shares of Stock are
characterized as "restricted securities" under the federal securities laws
inasmuch as they are being acquired from the Company in transactions not
involving a public offering and that under such laws and applicable regulations
such securities may be resold without registration under the Securities Act of
1933, as amended (the "Act"), only in certain limited circumstances. In this
connection, the undersigned represents that it is familiar with SEC Rule 144, as
presently in effect, and understands the resale limitations imposed thereby and
by the Act.

         4. The undersigned understands the instruments evidencing the Stock may
bear one or all of the following legends:

                  (a) "THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE
                  SECURITIES ACT OF 1933. THEY MAY NOT BE SOLD, OFFERED FOR
                  SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF A REGISTRATION
                  STATEMENT IN EFFECT WITH RESPECT TO THE SECURITIES UNDER SUCH
                  ACT OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT
                  SUCH REGISTRATION IS NOT REQUIRED OR UNLESS SOLD PURSUANT TO
                  RULE 144 OF SUCH ACT."

                  (b) Any legend required by applicable state law.

                  5. Please issue a certificate or certificates representing
said shares of Stock in the name of the undersigned:



                                            _____________________________
                                                      [Name]

         6. Please issue a new Warrant for the unexercised portion of the
attached Warrant in the name of the undersigned:



                                            _____________________________
                                                      [Name]

_________________________________           _____________________________
           [Date]                                  [Signature]

                                        7
<PAGE>   31
                                 ASSIGNMENT FORM

         (To assign the foregoing Warrant, execute this form and supply
         required information. Do not use this form to purchase shares.)

         FOR VALUE RECEIVED, the foregoing Warrant and all rights evidenced
thereby are hereby assigned to


___________________________________________________________________
                                 (Please Print)

whose address is___________________________________________________
                                 (Please Print)

___________________________________________________________________


                                 Dated:___________________ , 19____


                    Holder's Signature:____________________________

                      Holder's Address:____________________________

                                       ____________________________



Signature Guaranteed____________________________



NOTE: The signature to this Assignment Form must correspond with the name as it
appears on the face of the Warrant, without alteration or enlargement or any
change whatever, and must be guaranteed by a bank or trust company. Officers of
corporations and those acting in a fiduciary or other representative capacity
should file proper evidence of authority to assign the foregoing Warrant.

                                        8
<PAGE>   32
                       INVESTMENT REPRESENTATION STATEMENT

PURCHASER        Freeman A. Ford

COMPANY       :  FAFCO, Inc.

SECURITIES    :  Common Stock

DATE          :  March 27, 1996


          In connection with the purchase of the above-listed Securities, the
undersigned, the Purchaser represents to the Company the following:

                 (a) The undersigned is sufficiently aware of the Company's
business affairs and financial condition to reach an informed and knowledgeable
decision to acquire the Securities. The undersigned is purchasing these
Securities for its own account for investment purposes only and not with a view
to, or for the resale in connection with, any "distribution" thereof for
purposes of the Securities Act of 1933, as amended (the "Securities Act").

                 (b) The undersigned understands that the Securities have not
been registered under the Securities Act in reliance upon a specific exemption
therefrom, which exemption depends upon, among other things, the bona fide
nature of its investment intent as expressed herein. In this connection, the
undersigned understands that, in the view of the Securities and Exchange
Commission (the "SEC"), the statutory basis for such exemption may be
unavailable if its representation was predicated solely upon a present intention
to hold these Securities for the minimum capital gains period specified under
tax statutes, for a deferred sale, for or until an increase or decrease in the
market price of the Securities, or for a period of one year or any other fixed
period in the future.

                 (c) The undersigned further understands that the Securities
must be held indefinitely unless subsequently registered under the Securities
Act or unless an exemption from registration is otherwise available (such as
Rule 144 under the Securities Act). Moreover, the undersigned understands that
the Company is under no obligation to register the Securities. In addition, the
undersigned understands that the certificate evidencing the Securities may be
imprinted with a legend which prohibits the transfer of the Securities unless
they are registered or such registration is not required in the opinion of
counsel for the Company.

                 (d) The undersigned is familiar with the provisions of Rule
144, promulgated under the Securities Act, which, in substance, permits limited
public resale of "restricted securities" acquired, directly or indirectly, from
the issuer thereof (or from an affiliate of such issuer), in a non-public
offering subject to the satisfaction of certain conditions, including, among
other things: (1) The availability of certain public information about the
Company; (2) the resale occurring not less than two years after the party has
purchased, and made full payment for, within the meaning of Rule 144, the
securities to be sold; and, in the case of an affiliate, or of a non-affiliate
who has held the securities less than three years, (3) the sale being made
through a broker in an unsolicited "broker's transaction" or in transactions
directly with a market maker, as said term is defined under 

                                        9
<PAGE>   33
the Securities Exchange Act of 1934 (the "Exchange Act") and the amount of
securities being sold during any three month period not exceeding the specified
limitations stated therein, if applicable. There can be no assurances that the
requirements of Rule 144 will be met, or that the Securities will ever be
saleable.

                 (e) The undersigned further understands that at the time the
undersigned wishes to sell the Securities there may be no public market upon
which to make such a sale, and that, even if such a public market then exists,
the Company may not be satisfying the current public information requirements of
Rule 144, and that, in such event, the undersigned would be precluded from
selling the Securities under Rule 144 even if the two-year minimum holding
period had been satisfied.

                 (f) The undersigned further understands that in the event all
of the applicable requirements of Rule 144 are not satisfied registration under
the Securities Act, compliance with Regulation A, compliance with some other
registration exemption or the notification to the Company of the proposed
disposition by it and the furnishing to the Company of (i) detailed information
regarding the disposition, and (ii) and opinion of its counsel to the effect
that such disposition will not require registration (the undersigned understands
such counsel's opinion shall concur with the opinion by counsel for the Company
and the undersigned shall have been informed of such compliance) will be
required and that, notwithstanding the fact that Rule 144 is not exclusive, the
Staff of the SEC has expressed its opinion that persons proposing to sell
private placement securities other than in a registered offering and otherwise
than pursuant to Rule 144 will have a substantial burden of proof in
establishing that an exemption from registration is available for such offers or
sales, and that such persons and their respective brokers who participate in
such transactions do so at their own risk.

                 (g) The undersigned understands that, in connection with any
public offering of the Company's equity securities, and upon request of the
Company or the underwriters managing such offering, not to sell, make any short
sale of, loan, grant any option for the purchase of or otherwise dispose of any
shares of the Company's capital stock without the prior written consent of the
Company or such underwriters, as the case may be, for such period of time (not
to exceed one hundred eighty (180) days) from the effective date of such
registration as may be requested by the Company or the underwriters; provided,
that the officers and directors of the Company who own, or hold options to
purchase, Common Stock of the Company also agree to such restrictions.

                             Signature of Purchaser:


                             By:_______________________________________

                             Title:____________________________________

                                       10



<PAGE>   1
===============================================================================

                                   FAFCO, INC.

                AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT

===============================================================================
<PAGE>   2
                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                       PAGE
                                                                                                                       ----
<S>                                                                                                                    <C>
1.    DEFINITIONS AND CONSTRUCTION...................................................................................     1
      1.1       Definitions..........................................................................................     1
      1.2       Accounting Terms.....................................................................................    10

2.    LOAN AND TERMS OF PAYMENT......................................................................................    10
      2.1       Advances.............................................................................................    10
      2.2       Overadvances.........................................................................................    10
      2.3       Interest Rates, Payments, and Calculations...........................................................    10
      2.4       Crediting Payments...................................................................................    11
      2.5       Fees.................................................................................................    11
      2.6       Additional Costs.....................................................................................    12
      2.7       Term.................................................................................................    12

3.    CONDITIONS OF ADVANCES.........................................................................................    12
      3.1       Conditions Precedent to Initial Advance..............................................................    12
      3.2       Conditions Precedent to all Advances.................................................................    13

4.    CREATION OF SECURITY INTERESTS.................................................................................    13
      4.1       Grant of Security Interest...........................................................................    13
      4.2       Delivery of Additional Documentation Required........................................................    13
      4.3       Right to Inspect.....................................................................................    14

5.    REPRESENTATIONS AND WARRANTIES.................................................................................    14
      5.1       Due Organization and Qualification...................................................................    14
      5.2       Due Authorization, No Conflict.......................................................................    14
      5.3       No Prior Encumbrances................................................................................    14
      5.4       Bona Fide Eligible Accounts..........................................................................    14
      5.5       Merchantable Inventory...............................................................................    14
      5.6       Name, Location of Chief Executive Office.............................................................    14
      5.7       Litigation...........................................................................................    15
      5.8       No Material Adverse Change in Financial Statements...................................................    15
      5.9       Solvency.............................................................................................    15
      5.10      Regulatory Compliance................................................................................    15
      5.11      Environmental Condition..............................................................................    15
      5.12      Taxes................................................................................................    16
      5.13      Subsidiaries.........................................................................................    16
      5.14      Government Consents..................................................................................    16
      5.15      Full Disclosure......................................................................................    16

6.    AFFIRMATIVE COVENANTS .........................................................................................    16
      6.1       Good Standing........................................................................................    16
      6.2       Government Compliance................................................................................    16
      6.3       Financial Statements, Reports, Certificates..........................................................    16
      6.4       Inventory, Returns...................................................................................    17
      6.5       Taxes................................................................................................    17
      6.6       Insurance............................................................................................    18
      6.7       Principal Depository.................................................................................    18
      6.8       Quick Ratio..........................................................................................    18
      6.9       Debt Net Worth Ratio.................................................................................    18
      6.10      Tangible Net Worth...................................................................................    18
      6.11      Profitability........................................................................................    18
      6.12      Registration of Intellectual Property Rights.........................................................    18
</TABLE>

                                        i
<PAGE>   3
<TABLE>
<S>                                                                                                                      <C>
      6.13      Further Assurances...................................................................................    19

7.    NEGATIVE COVENANTS.............................................................................................    19
      7.1       Dispositions.........................................................................................    19
      7.2       Change in Business...................................................................................    19
      7.3       Mergers or Acquisitions..............................................................................    19
      7.4       Indebtedness.........................................................................................    20
      7.5       Encumbrances.........................................................................................    20
      7.6       Distributions........................................................................................    20
      7.7       Investments..........................................................................................    20
      7.8       Transactions with Affiliates.........................................................................    20
      7.9       Subordinated Debt....................................................................................    20
      7.10      Inventory............................................................................................    20
      7.11      Compliance...........................................................................................    20

8.    EVENTS OF DEFAULT..............................................................................................    21
      8.1       Payment Default......................................................................................    21
      8.2       Covenant Default.....................................................................................    21
      8.3       Material Adverse Change..............................................................................    21
      8.4       Attachment...........................................................................................    21
      8.5       Insolvency...........................................................................................    22
      8.6       Other Agreements.....................................................................................    22
      8.7       Judgments............................................................................................    22
      8.8       Misrepresentations...................................................................................    22

9.    BANK'S RIGHTS AND REMEDIES.....................................................................................    22
      9.1       Rights and Remedies..................................................................................    22
      9.2       Power of Attorney....................................................................................    23
      9.3       Accounts Collection..................................................................................    24
      9.4       Bank Expenses........................................................................................    24
      9.5       Bank's Liability for Collateral......................................................................    24
      9.6       Remedies Cumulative..................................................................................    24
      9.7       Demand; Protest......................................................................................    24

10.   NOTICES .......................................................................................................    25

11.   CHOICE OF LAW AND VENUE; JURY TRIAL WAIVER.....................................................................    25

12.   GENERAL PROVISIONS.............................................................................................    26
      12.1      Successors and Assigns...............................................................................    26
      12.2      Indemnification......................................................................................    27
      12.3      Time of Essence......................................................................................    27
      12.4      Severability of Provisions...........................................................................    27
      12.5      Amendments in Writing, Integration...................................................................    27
      12.6      Counterparts.........................................................................................    27
      12.7      Survival.............................................................................................    27
      12.8      Confidentiality......................................................................................    28
</TABLE>

                                       ii
<PAGE>   4
         This AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT is entered into
as of June 5,1996, by and between SILICON VALLEY BANK ("Bank") and FAFCO, INC.
("Borrower").


                                    RECITALS

         A. Borrower and Bank are parties to that certain Business Loan
Agreement dated June 10, 1992 and that certain Commercial Security Agreement
dated June 3, 1994, each as may have been amended pursuant to Change in Terms
Agreements dated February 15, 1993 and April 29, 1993 (the "Change in Terms
Agreements") and Loan Modification Agreements dated December 9,1993, March 8,
1994, July 27, 1994, June 5, 1995, August 7, 1995 and February 8, 1996 (the
"Loan Modification Agreements") and as may have been further amended.

         B. Borrower has executed a Promissory Note dated June 10, 1992 in favor
of Bank, as may have been amended by the Change in Terms Agreements and the Loan
Modification Agreements and as may have been further amended.

         C. Borrower wishes to continue to borrow money from Bank, and Bank
desires to continue to extend credit to Borrower. This Agreement sets forth the
terms on which Bank will advance credit to Borrower, and Borrower will repay the
amounts owing to Bank.


                                    AGREEMENT

         The parties agree as follows:

         1.       DEFINITIONS AND CONSTRUCTION

                  1.1 Definitions. As used in this Agreement, the following
terms shall have the following definitions:

                           "Accounts" means all presently existing and hereafter
arising accounts, contract rights, and all other forms of obligations owing to
Borrower arising out of the sale or lease of goods (including, without
limitation, the licensing of software and other technology) or the rendering of
services by Borrower, whether or not earned by performance, and any and all
credit insurance, guaranties, and other security therefor, as well as all
merchandise returned to or reclaimed by Borrower and Borrower's Books relating
to any of the foregoing.

                           "Advance" or "Advances" means an advance under the
Revolving Facility.

                           "Affiliate" means, with respect to any Person, any
Person that owns or controls directly or indirectly such Person, any Person that
controls or is controlled by or is under common control with such Person, and
each of such Person's senior executive officers, directors, and partners.

                           "Bank Expenses" means all: reasonable costs or
expenses (including reasonable attorneys' fees and expenses) incurred in
connection with the preparation, negotiation, administration, and enforcement of
the Loan Documents; and Bank's reasonable attorneys' fees and expenses incurred
in amending, enforcing or defending the Loan Documents, whether or not suit is
brought.

                           "Borrower's Books" means all of Borrower's books and
records including: ledgers; records concerning Borrower's assets or liabilities,
the Collateral, business operations or financial condition; and all computer
programs, or tape files, and the equipment, containing such information.

                           "Borrowing Base" has the meaning set forth in Section
2.1 hereof.

                                        1
<PAGE>   5
                           "Business Day" means any day that is not a Saturday,
Sunday, or other day on which banks in the State of California are authorized or
required to close.

                           "Closing Date" means the date of this Agreement.

                           "Code" means the California Uniform Commercial Code.

                           "Collateral" means the property described on Exhibit
A attached hereto.

                           "Committed Line" means One Million Dollars
($1,000,000).

                           "Contingent Obligation" means, as applied to any
Person, any direct or indirect liability, contingent or otherwise, of that
Person with respect to (i) any indebtedness, lease, dividend, letter of credit
or other obligation of another, including, without limitation, any such
obligation directly or indirectly guaranteed, endorsed, co-made or discounted or
sold with recourse by that Person, or in respect of which that Person is
otherwise directly or indirectly liable; (ii) any obligations with respect to
undrawn letters of credit issued for the account of that Person; and (iii) all
obligations arising under any interest rate, currency or commodity swap
agreement, interest rate cap agreement, interest rate collar agreement, or other
agreement or arrangement designated to protect a Person against fluctuation in
interest rates, currency exchange rates or commodity prices; provided, however,
that the term "Contingent Obligation" shall not include endorsements for
collection or deposit in the ordinary course of business. The amount of any
Contingent Obligation shall be deemed to be an amount equal to the stated or
determined amount of the primary obligation in respect of which such Contingent
Obligation is made or, if not stated or determinable, the maximum reasonably
anticipated liability in respect thereof as determined by such Person in good
faith; provided, however, that such amount shall not in any event exceed the
maximum amount of the obligations under the guarantee or other support
arrangement.

                           "Current Liabilities" means, as of any applicable
date, all amounts that should, in accordance with GAAP, be included as current
liabilities on the consolidated balance sheet of Borrower and its Subsidiaries,
as at such date, plus, to the extent not already included therein, all
outstanding Advances made under this Agreement, including all Indebtedness that
is payable upon demand or within one year from the date of determination thereof
unless such Indebtedness is renewable or extendable at the option of Borrower or
any Subsidiary to a date more than one year from the date of determination, but
excluding Subordinated Debt.

                           "Daily Balance" means the amount of the Obligations
owed at the end of a given day.

                           "Eligible Accounts" means those Accounts that arise
in the ordinary course of Borrower's business that comply with all of Borrower's
representations and warranties to Bank set forth in Section 5.4; provided, that
standards of eligibility may be fixed and revised from time to time by Bank in
Bank's reasonable judgment and upon thirty (30) days prior written notification
thereof to Borrower in accordance with the provisions hereof. Unless otherwise
agreed to by Bank, Eligible -Accounts shall not include the following:

                           (a) Accounts that the account debtor has failed to
pay within ninety (90) days of invoice date;

                           (b) Accounts with respect to an account debtor, fifty
percent (50%) of whose Accounts the account debtor has failed to pay within
ninety (90) days of invoice date;

                           (c) Accounts with respect to which the account debtor
is an officer, employee, or agent of Borrower;

                                        2
<PAGE>   6
                           (d) Accounts with respect to which goods are placed
on consignment, guaranteed sale, sale or return, sale on approval, bill and
hold, or other terms by reason of which the payment by the account debtor may be
conditional;

                           (e) Accounts with respect to which the account debtor
is an Affiliate of Borrower;

                           (f) Accounts with respect to which the account debtor
does not have its principal place of business in the United States, except for
Eligible Foreign Accounts;

                           (g) Accounts with respect to which the account debtor
is the United States or any department, agency, or instrumentality of the United
States, except to the extent Borrower has filed notices under the Assignment of
Claims Act in a form acceptable to Bank;

                           (h) Accounts with respect to which Borrower is liable
to the account debtor for goods sold or services rendered by the account debtor
to Borrower, but only to the extent of any amounts owing to the account debtor
against amounts owed to Borrower;

                           (i) Accounts with respect to an account debtor,
including Subsidiaries and Affiliates, whose total obligations to Borrower
exceed twenty-five percent (25%) of all Accounts, to the extent such obligations
exceed the aforementioned percentage;

                           (j) Accounts with respect to which the account debtor
disputes liability or makes any claim with respect thereto as to which Bank
believes, in its sole discretion, that there may be a basis for dispute (but
only to the extent of the amount subject to such dispute or claim), or is
subject to any Insolvency Proceeding, or becomes insolvent, or goes out of
business; and

                           (k) Accounts the collection of which Bank reasonably
determines to be doubtful.

                           "Eligible Foreign Accounts" means Accounts with
respect to which the account debtor does not have its principal place of
business in the United States and that are: (1) covered by credit insurance in
form and amount, and by an insurer satisfactory to Bank less the amount of any
deductible(s) which may be or become owing thereon; or (2) supported by one or
more letters of credit in favor of Bank as beneficiary, in an amount and of a
tenor, and issued by a financial institution, acceptable to Bank; or (3) that
Bank approves on a case-by-case basis.

                           "Equipment" means all present and future machinery,
equipment, tenant improvements, furniture, fixtures, vehicles, tools, parts and
attachments in which Borrower has any interest.

                           "ERISA" means the Employment Retirement Income
Security Act of 1974, as amended, and the regulations thereunder.

                           "GAAP" means generally accepted accounting principles
as in effect from time to time.

                           "Indebtedness" means (a) all indebtedness for
borrowed money or the deferred purchase price of property or services, including
without limitation reimbursement and other obligations with respect to surety
bonds and letters of credit, (b) all obligations evidenced by notes, bonds,
debentures or similar instruments, (c) all capital lease obligations and (d) all
Contingent Obligations.

                           "Insolvency Proceeding" means any proceeding
commenced by or against any person or entity under any provision of the United
States Bankruptcy Code, as amended, or under any

                                        3
<PAGE>   7
other bankruptcy or insolvency law, including assignments for the benefit of
creditors, formal or informal moratoria, compositions, extension generally with
its creditors, or proceedings seeking reorganization, arrangement, or other
relief.

                           "Inventory" means all present and future inventory in
which Borrower has any interest, including merchandise, raw materials, parts,
supplies, packing and shipping materials, work in process and finished products
intended for sale or lease or to be furnished under a contract of service, of
every kind and description now or at any time hereafter owned by or in the
custody or possession, actual or constructive, of Borrower, including such
inventory as is temporarily out of its custody or possession or in transit and
including any returns upon any accounts or other proceeds, including insurance
proceeds, resulting from the sale or disposition of any of the foregoing and any
documents of title representing any of the above, and Borrower's Books relating
to any of the foregoing.

                           "Investment" means any beneficial ownership of
(including stock, partnership interest or other securities) any Person, or any
loan, advance or capital contribution to any Person.

                           "IRC" means the Internal Revenue Code of 1986, as
amended, and the regulations thereunder.

                           "Lien" means any mortgage, lien, deed of trust,
charge, pledge, security interest or other encumbrance.

                           "Loan Documents" means, collectively, this Agreement,
any note or notes executed by Borrower, and any other agreement entered into
between Borrower and Bank in connection with this Agreement, all as amended or
extended from time to time.

                           "Material Adverse Effect" means a material adverse
effect on (i) the business operations or condition (financial or otherwise) of
Borrower and its Subsidiaries taken as a whole or (ii) the ability of Borrower
to repay the Obligations.

                           "Maturity Date" means the day immediately before the
first anniversary of the Closing Date.

                           "Negotiable Collateral" means all of Borrower's
present and future letters of credit of which it is a beneficiary, notes,
drafts, instruments, securities, documents of title, and chattel paper, and
Borrower's Books relating to any of the foregoing.

                           "Obligations" means all debt, principal, interest,
Bank Expenses and other amounts owed to Bank by Borrower pursuant to this
Agreement or any other agreement, whether absolute or contingent, due or to
become due, now existing or hereafter arising, including any interest that
accrues after the commencement of an Insolvency Proceeding and including any
debt, liability, or obligation owing from Borrower to others that Bank may have
obtained by assignment or otherwise.

                           "Periodic Payments" means all installments or similar
recurring payments that Borrower may now or hereafter become obligated to pay to
Bank pursuant to the terms and provisions of any instrument, or agreement now or
hereafter in existence between Borrower and Bank.

                           "Permitted Indebtedness" means:

                           (a) Indebtedness of Borrower in favor of Bank arising
under this Agreement or any other Loan Document;

                           (b) Indebtedness existing on the Closing Date and
disclosed in the Schedule;

                                        4
<PAGE>   8
                           (c) Indebtedness to trade creditors and with respect
to surety bonds and similar obligations incurred in the Ordinary cause of
business.

                           (d) Subordinated Debt;

                           (e) Indebtedness of Borrower to any Subsidiary and
Contingent Obligations of any Subsidiary with respect to obligations of Borrower
(provided that the primary obligations are not prohibited hereby), and
Indebtedness of any Subsidiary to any other Subsidiary and Contingent
Obligations of any Subsidiary with respect to obligations of any other
Subsidiary (provided that the primary obligations are not prohibited hereby);

                           (f) Indebtedness secured by Permitted Liens;

                           (g) Capital leases or indebtedness incurred solely to
purchase equipment which is secured in accordance with clause (c) of "Permitted
Liens" below and is not in excess of the lesser of the purchase price of such
equipment or the fair market value of such equipment on the date of acquisition;
and

                           (h) Extensions, refinancings, modifications,
amendments and restatements of any of items of Permitted Indebtedness (a)
through (g) above, provided that the principal amount thereof is not increased
or the terms thereof are not modified to impose more burdensome terms upon
Borrower or its Subsidiary, as the case may be.

                           "Permitted Investment" means:

                           (a) Investments existing on the Closing Date
disclosed in the Schedule;

                           (b) (i) marketable direct obligations issued or
unconditionally guaranteed by the United States of America or any agency or any
State thereof maturing within one (1) year from the date of acquisition thereof,
(ii) commercial paper maturing no more than one (1) year from the date of
creation thereof and currently having the highest rating obtainable from either
Standard & Poor's Corporation or Moody's Investors Service, Inc., and (iii)
certificates of deposit maturing no more than one (1) year from the date of
investment therein issued by Bank, and (iv) any Investments permitted by
Borrower's investment policy, as amended from time to time, provided that such
investment policy (any such amendment thereto) has been approved by Bank;

                           (c) Investments consisting of the endorsement of
negotiable instrument for deposit or collection or similar transaction in the
ordinary course of business;

                           (d) Investments accepted in connection with Transfers
permitted by Section 7.1;

                           (e) Investments (whether consisting of the purchase
or securities, loans, capital contribution, or otherwise) of Subsidiaries in or
to other Subsidiaries or in Borrower;

                           (f) Investments consisting of (i) compensation of
employees, officers and directors of Borrower or its Subsidiaries so long as the
Board of Directors of Borrower determines that such compensation is in the best
interests of Borrower, (ii) travel advances, employee relocation loans and other
employee loans and advances in the ordinary course of business, and (iii) loans
to employees, officers or directors relating to the purchase of equity
securities of Borrower or its Subsidiaries pursuant to employee stock purchase
plans or agreements approved by Borrower's Board of Directors;

                                       5
<PAGE>   9
                           (g) Investments (including debt obligations) received
in connection with the bankruptcy or reorganization of customers or suppliers
and in settlement of delinquent obligations of, and other disputes with,
customers or suppliers arising in the ordinary course of business;

                           (h) Investments pursuant to or arising under currency
agreements or interest rate agreements entered into in the ordinary course of
business;

                           (i) Investments consisting of notes receivable of, or
prepaid royalties and other credit extensions, to customers and suppliers who
are not Affiliates, in the ordinary course of business; provided that this
paragraph (i) shall not apply to Investments by Borrower in any Subsidiary;

                           (j) Investments constituting acquisitions permitted
under Section 7.3; and

                           (k) Deposit accounts of Borrower in which Bank has a
Lien prior to any other lien.

                           "Permitted Liens" means the following:

                           (a) Any Liens existing on the Closing Date and
disclosed in the Schedule or arising under this Agreement or the other Loan
Documents;

                           (b) Liens for taxes, fees, assessments or other
governmental charges or levies, either not delinquent or being contested in good
faith by appropriate proceedings, provided the same have no priority over any of
Bank's security interests;

                           (c) Liens (i) upon or in any equipment acquired or
held by Borrower or any of its Subsidiaries to secure the purchase price of such
equipment or indebtedness incurred solely for the purpose of financing the
acquisition of such equipment, or (ii) existing on such equipment at the time of
its acquisition, provided that the Lien is confined solely to the property so
acquired and improvements thereon, and the proceeds of such equipment;

                           (d) Liens on Equipment leased by Borrower or any
Subsidiary pursuant to an operating or capital lease in the ordinary course of
business (including proceeds thereof and accessions thereto) incurred solely for
the purpose of financing the lease of such Equipment (including Liens pursuant
to leases permitted pursuant to Section 7.1 and Liens arising from UCC financing
statements regarding leases permitted by this Agreement);

                           (e) Leases or subleases and license and sublicenses
granted to others in the ordinary course of Borrower's business not interfering
in any material respect with the business of Borrower and its Subsidiaries taken
as a whole, and any interest or title of a lessor, licensor or under any lease
or license;

                           (f) Liens on assets (including the proceeds thereof
and accessions thereto) that existed at the time such assets were acquired by
Borrower or any Subsidiary (including Liens on assets of any corporation that
existed at the time it became or becomes a Subsidiary); provided such Liens are
not granted in contemplation of or in connection with the acquisition of such
asset by Borrower or a Subsidiary;

                           (g) Liens arising from judgments, decrees or
attachments in circumstances not constituting an Event of Default under Section
8.8;

                           (h) Easements, reservations, rights-of-way,
restrictions, minor defects or irregularities in title and other similar charges
or encumbrances affecting real property not constituting a Material Adverse
Effect;

                                        6
<PAGE>   10
                           (i) Liens in favor of customs and revenue authorities
arising as a matter of law to secure payments of customs duties in connection
with the importation of goods;

                           (j) Liens that are not prior to the Lien of Bank
which constitute rights of set-off of a customary nature or banker's Liens with
respect to amounts on deposit, whether arising by operation of law or by
contract, in connection with arrangement entered in to with banks in the
ordinary course of business;

                           (k) Earn-out and royalty obligations existing on the
date hereof or entered into in connection with an acquisition permitted by
Section 7.3;

                           (l) Liens incurred in connection with the extension,
renewal or refinancing of the indebtedness secured by liens of the type
described in clauses (a), (c), (d), (e), (f) and (k) above, provided that any
extension, renewal or replacement Lien shall be limited to the property
encumbered by the existing Lien and the principal amount of the indebtedness
being extended, renewed or refinanced does not increase; and

                           (m) Liens on insurance proceeds in favor of insurance
companies granted solely as security for financed premiums.

                           "Person" means any individual, sole proprietorship,
partnership, limited liability company, joint venture, trust, unincorporated
organization, association, corporation, institution, public benefit corporation,
firm, joint stock company, estate, entity or governmental agency.

                           "Prime Rate" means the variable rate of interest, per
annum, most recently announced by Bank, as its "prime rate," whether or not such
announced rate is the lowest rate available from Bank.

                           "Quick Assets" means, at any date as of which the
amount thereof shall be determined, the consolidated cash, cash-equivalents,
accounts receivable and investments, with maturities not to exceed 90 days, of
Borrower determined in accordance with GAAP.

                           "Responsible Officer" means each of the Chief
Executive Officer, the Chief Financial Officer and the Controller of Borrower.

                           "Revolving Facility" means the facility under which
Borrower may request Bank to issue cash advances, as specified in Section 2.1
hereof.

                           "Schedule" means the schedule of exceptions, if any,
attached hereto.

                           "Subordinated Debt" means any debt incurred by
Borrower that is subordinated to the debt owing by Borrower to Bank on terms
reasonably acceptable to Bank (and identified as being such by Borrower and
Bank).

                           "Subsidiary" means any corporation or partnership in
which (i) any general partnership interest or (ii) more than 50% of the stock of
which by the terms thereof ordinary voting power to elect the Board of
Directors, managers or trustees of the entity shall, at the time as of which any
determination is being made, be owned by Borrower, either directly or through an
Affiliate.

                           "Tangible Net Worth" means at any date as of which
the amount thereof shall be determined, the consolidated total assets of
Borrower and its Subsidiaries minus, without duplication, (i) the sum of any
amounts attributable to (a) goodwill, (b) intangible items such as unamortized
debt discount and expense, patents, trade and service marks and names,
copyrights and

                                        7
<PAGE>   11
research and development expenses except prepaid expenses, and
(c) all reserves not already deducted from assets, and (ii) Total Liabilities.

                           "Total Liabilities" means at any date as of which the
amount thereof shall be determined, all obligations that should, in accordance
with GAAP be classified as liabilities on the consolidated balance sheet of
Borrower, including in any event all Indebtedness (other than Contingent
Obligations) but specifically excluding Subordinated Debt.

                  1.2 Accounting Terms. All accounting terms not specifically
defined herein shall be construed in accordance with GAAP and all calculations
made hereunder shall be made in accordance with GAAP. When used herein, the
terms "financial statements" shall include the notes and schedules thereto.

         2. LOAN AND TERMS OF PAYMENT

                  2.1 Advances. Subject to and upon the terms and conditions of
this Agreement, Bank agrees to make Advances to Borrower in an aggregate amount
not to exceed the lesser of (i) the Committed Line or (ii) the Borrowing Base.
For purposes of this Agreement, "Borrowing Base" shall mean an amount equal to
seventy-five percent (75%) of Eligible Accounts. Subject to the terms and
conditions of this Agreement, amounts borrowed pursuant to this Section 2.1 may
be repaid and reborrowed at any time during the term of this Agreement.

         Whenever Borrower desires an Advance, Borrower will notify Bank by
facsimile transmission or telephone no later than 3:00 p.m. California time, on
the Business Day that the Advance is to be made. Each such notification shall be
promptly confirmed by a Payment/Advance Form in substantially the form of
Exhibit B hereto. Bank is authorized to make Advances under this Agreement,
based upon instructions received from a Responsible Officer, or without
instructions if in Bank's discretion such Advances are necessary to meet
Obligations which have become due and remain unpaid. Bank shall be entitled to
rely on any telephonic notice given by a person who Bank reasonably believes to
be a Responsible Officer, and Borrower shall indemnify and hold Bank harmless
for any damages or loss suffered by Bank as a result of such reliance. Bank will
credit the amount of Advances made under this Section 2.1 to Borrower's deposit
account.

         The Revolving Facility shall terminate on the Maturity Date, at which
time all Advances under this Section 2.1 and all other amounts outstanding under
this Agreement shall be immediately due and payable.

                  2.2 Overadvances. If, at any time or for any reason, the
amount of Obligations owed by Borrower to Bank is greater than the lesser of the
Committed Line or the Borrowing Base, Borrower shall immediately pay to Bank, in
cash, the amount of such excess.

                  2.3 Interest Rates, Payments, and Calculations.

                           (a) Interest Rate. Except as set forth in Section
2.3(b), any Advances shall bear interest, on the average Daily Balance, at a
rate equal to two and one-half (2.5) percentage points above the Prime Rate.

                           (b) Default Rate. All Obligations shall bear
interest, from and after the occurrence of an Event of Default, at a rate equal
to five (5) percentage points above the interest rate applicable immediately
prior to the occurrence of the Event of Default.

                           (c) Payments. Interest hereunder shall be due and
payable on the fourth calendar day of each month during the term hereof. Bank
shall, at its option, charge such interest, all Bank Expenses, and all Periodic
Payments against any of Borrower's deposit accounts or against the Committed
Line, in which case those amounts shall thereafter accrue interest at the rate
then

                                        8
<PAGE>   12
applicable hereunder. Any interest not paid when due shall be compounded by
becoming a part of the Obligations, and such interest shall thereafter accrue
interest at the rate then applicable hereunder.

                           (d) Computation. In the event the Prime Rate is
changed from time to time hereafter, the applicable rate of interest hereunder
shall be increased or decreased effective as of 12:01 a.m. on the day the Prime
Rate is changed, by an amount equal to such change in the Prime Rate. All
interest chargeable under the Loan Documents shall be computed on the basis of a
three hundred sixty (360) day year for the actual number of days elapsed.

                  2.4 Crediting Payments. Prior to the occurrence of an Event of
Default, Bank shall credit a wire transfer of funds, check or other item of
payment to such deposit account or Obligation as Borrower specifies. After the
occurrence of an Event of Default, the receipt by Bank of any wire transfer of
funds, check, or other item of payment shall be immediately applied to
conditionally reduce Obligations, but shall not be considered a payment on
account unless such payment is of immediately available federal funds or unless
and until such check or other item of payment is honored when presented for
payment. Notwithstanding anything to the contrary contained herein, any payment
(other than a wire transfer of immediately available funds) received by Bank
after 3:00 p.m. California time shall be deemed to have been received by Bank as
of the opening of business on the immediately following Business Day. Whenever
any payment to Bank under the Loan Documents would otherwise be due (except by
reason of acceleration) on a date that is not a Business Day, such payment shall
instead be due on the next Business Day, and additional fees or interest, as the
case may be, shall accrue and be payable for the period of such extension.

                  2.5 Fees. Borrower shall pay to Bank the following:

                           (a) Facility Fee. A Facility Fee equal to Seven
Thousand Five Hundred Dollars ($7,500), which fee shall be due on the Closing
Date and shall be fully earned and nonrefundable;

                           (b) Financial Examination and Appraisal Fees. Bank's
customary fees and out-of-pocket expenses for Bank's audits of Borrower's
Accounts, and for each appraisal of Collateral and financial analysis and
explanation of Borrower performed from time to time by Bank or its agents;

                           (c) Bank Expenses. Upon the date hereof, all Bank
Expenses incurred through the Closing Date, including reasonable attorneys' fees
and expenses and, after the date hereof, all Bank Expenses upon delivery of an
invoice therefor.

                  2.6 Additional Costs. In case any law, regulation, treaty or
official directive or the interpretation or application thereof by any court or
any governmental authority charged with the administration thereof or the
compliance with any guideline or request of any central bank or other
governmental authority (whether or not having the force of law):

                           (a) subjects Bank to any tax with respect to payments
of principal or interest or any other amounts payable hereunder by Borrower or
otherwise with respect to the transactions contemplated hereby (except for taxes
on the overall net income of Bank imposed by the United States of America or any
political subdivision thereof);

                           (b) imposes, modifies or deems applicable any deposit
insurance, reserve, special deposit or similar requirement against assets held
by, or deposits in or for the account of, or loans by, Bank; or

                           (c) imposes upon Bank any other condition with
respect to its performance under this Agreement,

                                        9
<PAGE>   13
and the result of any of the foregoing is to increase the cost to Bank, reduce
the income receivable by Bank or impose any expense upon Bank with respect to
any loans, Bank shall notify Borrower thereof. Borrower agrees to pay to Bank
the amount of such increase in cost, reduction in income or additional expense
as and when such Cost, reduction or expense is incurred or determined, upon
presentation by Bank of a statement of the amount and setting forth Bank's
calculation thereof, all in reasonable detail, which statement shall be deemed
true and correct absent manifest error; provided, however, that Borrower shall
not be liable for any such amount attributable to any period prior to the date
one hundred eighty (180) days prior to the date of such certificate.

                  2.7 Term. This Agreement shall become effective on the Closing
Date and, subject to Section 12.7, shall continue in full force and effect for a
term ending on the Maturity Date. Notwithstanding the foregoing, Bank shall have
the right to terminate its obligation to make Advances under this Agreement
immediately and without notice upon the occurrence and during the continuance of
an Event of Default. Notwithstanding termination, Bank's Lien on the Collateral
shall remain in effect for so long as any Obligations (excluding Obligations
under Section 2.6 and 12.2 to the extent they remain inchoate at the time
outstanding payment obligations are paid in full) are outstanding.

         3. CONDITIONS OF ADVANCES

                  3.1 Conditions Precedent to Initial Advance. The obligation of
Bank to make the initial Advance is subject to the condition precedent that Bank
shall have received, in form and substance satisfactory to Bank, the following:

                           (a) this Agreement;

                           (b) a certificate of the Secretary of Borrower with
respect to bylaws, incumbency and resolutions authorizing the execution and
delivery of this Agreement;

                           (c) a good standing certificate for Borrower from the
Secretary of State of California, dated as of a recent date;

                           (d) collateral assignment and patent mortgage;

                           (e) payment of the fees and Bank Expenses then due
specified in Section 2.5 hereof; and

                           (f) such other documents, and completion of such
other matters, as Bank may reasonably deem necessary or appropriate.

                  3.2 Conditions Precedent to all Advances. The obligation of
Bank to make each Advance, including the initial Advance, is further subject to
the following conditions:

                           (a) timely receipt by Bank of the Payment/Advance
Form as provided in Section 2.1; and

                           (b) the representations and warranties contained in
Section 5 shall be true and correct in all material respects on and as of the
date of such Payment/Advance Form and on the effective date of each Advance as
though made at and as of each such date, and no Event of Default shall have
occurred and be continuing, or would result from such Advance (except to the
extent they relate specifically to any earlier date, in which case such
representations and warranties shall continue to have been true and accurate as
of such date). The making of each Advance shall be deemed to be a

                                       10
<PAGE>   14
representation and warranty by Borrower on the date of such Advance as to the
accuracy of the facts referred to in this Section 3.2(b).

         4. CREATION OF SECURITY INTEREST

                  4.1 Grant of Security Interest. Borrower grants and pledges to
Bank a continuing security interest in all presently existing and hereafter
acquired or arising Collateral in order to secure prompt repayment of any and
all Obligations and in order to secure prompt performance by Borrower of each of
its covenants and duties under the Loan Documents. Except as set forth in the
Schedule, such security interest constitutes a valid, first priority security
interest in the presently existing Collateral, and will constitute a valid,
first priority security interest in Collateral acquired after the date hereof,
in each case, to the extent that a security interest in such Collateral can be
perfected by the filing of a financing statement or, in the case of Collateral
consisting of instruments, documents, chattel paper or certificated securities,
to the extent that Bank takes possession of such Collateral. Bank agrees to
execute and deliver to Borrower from time to time such Lien releases as Borrower
may request and as are necessary to give to other lenders which finance
equipment for Borrower a first priority security interest in the equipment
financed so long as the Liens and the Indebtedness incurred with respect to such
equipment financing are permitted under this Agreement.

                  4.2 Delivery of Additional Documentation Required. Borrower
shall from time to time execute and deliver to Bank, at the request of Bank, all
Negotiable Collateral, all financing statements and other documents that Bank
may reasonably request, in form satisfactory to Bank, to perfect and continue
perfected Bank's security interests in the Collateral and in order to fully
consummate all of the transactions contemplated under the Loan Documents.

                  4.3 Right to Inspect. Subject to Section 12.8, Bank (through
any of its officers, employees, or agents) shall have the right, upon reasonable
prior notice, from time to time during Borrower's usual business hours, to
inspect Borrower's Books and to make copies thereof and to check, test, and
appraise the Collateral in order to verify Borrower's financial condition or the
amount, condition of, or any other matter relating to, the Collateral.

         5. REPRESENTATIONS AND WARRANTIES.

                  Borrower represents and warrants as follows:

                  5.1 Due Organization and Qualification. Borrower and each
Subsidiary is a corporation duly existing and in good standing under the laws of
its state of incorporation and qualified and licensed to do business in, and is
in good standing in, any state in which the conduct of its business or its
ownership of property requires that it be so qualified, except for states as to
which any failure to so qualify would not have a Material Adverse Effect.

                  5.2 Due Authorization; No Conflict. The execution, delivery,
and performance of the Loan Documents are within Borrower's powers, have been
duly authorized, and are not in conflict with nor constitute a breach of any
provision contained in Borrower's Articles of Incorporation or Bylaws, nor will
they constitute an event of default under any material agreement to which
Borrower is a party or by which Borrower is bound. Borrower is not in default
under any agreement to which it is a party or by which it is bound, which
default would reasonably be expected to have a Material Adverse Effect.

                  5.3 No Prior Encumbrances. Borrower has good and indefeasible
title to the Collateral, free and clear of Liens, except for Permitted Liens.

                  5.4 Bona Fide Eligible Accounts. The Accounts are bona fide
existing obligations. The property giving rise to such Accounts has been
delivered to the account debtor or to the account debtor's agent for immediate
shipment to and unconditional acceptance by the account debtor.

                                       11
<PAGE>   15
Borrower has not received notice of an actual or imminent insolvency Proceeding
of any account debtor, the Accounts of which are included in any Borrowing Base
Certificate as an Eligible Account.

                  5.5 Merchantable Inventory. All Inventory is in all material
respects of good and marketable quality, free from all material defects.

                  5.6 Name; Location of Chief Executive Office. Except as
disclosed in the Schedule, Borrower has not done business under any name other
than that specified on the signature page hereof. The chief executive office of
Borrower is located at the address indicated in Section 10 hereof.

                  5.7 Litigation. Except as set forth in the Schedule, there are
no actions or proceedings pending (or, to Borrower's knowledge, threatened) by
or against Borrower or any Subsidiary before any court or administrative agency
in which a likely decision would reasonably be expected to have a Material
Adverse Effect or a material adverse effect on Borrower's interest or Bank's
security interest in the Collateral.

                  5.8 No Material Adverse Change in Financial Statements. All
consolidated financial statements related to Borrower and any Subsidiary that
have been delivered by Borrower to Bank fairly present in all material respects
Borrower's consolidated financial condition as of the date thereof and
Borrower's consolidated results of operations for the period then ended. There
has not been a material adverse change in the consolidated financial condition
of Borrower since the date of the most recent of such financial statements
submitted to Bank.

                  5.9 Solvency. Borrower is solvent and able to pay its debts
(including trade debts) as they mature.

                  5.10 Regulatory Compliance. Borrower and each Subsidiary has
met the minimum funding requirements of ERISA with respect to any employee
benefit plans subject to ERISA. No event has occurred resulting from Borrower's
failure to comply with ERISA that is reasonably likely to result in Borrower's
incurring any liability that would reasonably be expected to have a Material
Adverse Effect. Borrower is not an "investment company" or a company
"controlled" by an "investment company" within the meaning of the Investment
Company Act of 1940. Borrower is not engaged principally, or as one of the
important activities, in the business of extending credit for the purpose of
purchasing or carrying margin stock (within the meaning of Regulations G, T and
U of the Board of Governors of the Federal Reserve System). Borrower has
complied with all the provisions of the Federal Fair Labor Standards Act.
Borrower has not violated any statutes, laws, ordinances or rules applicable to
it, violation of which could have a Material Adverse Effect.

                  5.11 Environmental Condition. None of Borrower's or any
Subsidiary's properties or assets has ever been used by Borrower or any
Subsidiary or, to the best of Borrower's knowledge, by previous owners or
operators, in the disposal of, or to produce, store, handle, treat, release, or
transport, any hazardous waste or hazardous substance other than in accordance
with applicable law; to the best of Borrower's knowledge, none of Borrower's
properties or assets has ever been designated or identified in any manner
pursuant to any environmental protection statute as a hazardous waste or
hazardous substance disposal site, or a candidate for closure pursuant to any
environmental protection statute; no lien arising under any environmental
protection statute has attached to any revenues or to any real or personal
property owned by Borrower or any Subsidiary; and neither Borrower nor any
Subsidiary has received a summons, citation, notice, or directive from the
Environmental Protection Agency or any other federal, state or other
governmental agency concerning any action or omission by Borrower or any
Subsidiary resulting in the releasing, or otherwise disposing of hazardous waste
or hazardous substances into the environment.

                  5.12 Taxes. Borrower and each Subsidiary has filed or caused
to be filed all tax returns required to be filed, and has paid, or has made
adequate provision for the payment of, all taxes reflected therein.

                                       12
<PAGE>   16
                  5.13 Subsidiaries. Borrower does not own any stock,
partnership interest or other equity securities of any Person, except for
Permitted Investments.

                  5.14 Government Consents. Borrower and each Subsidiary has
obtained all consents, approvals and authorizations of, made all declarations or
filings with, and given all notices to, all governmental authorities that are
necessary for the continued operation of Borrower's business as currently
conducted except where the failure to obtain any such consent, approval or
authorization, to make any such declaration or filing, or to be given any such
notice would not reasonably be expected to have a Material Adverse Effect.

                  5.15 Full Disclosure. No representation, warranty or other
statement made by Borrower in any certificate or written statement furnished to
Bank contains any untrue statement of a material fact or omits to state a
material fact necessary in order to make the statements contained in such
certificates or statements not misleading (it being recognized by Bank that the
projections and forecasts provided by Borrower are not to be viewed as facts and
that actual results during the period or periods covered by any such projections
and forecasts may differ from the projected or forecasted results).

         6. AFFIRMATIVE COVENANTS

                  Borrower covenants and agrees that, without the written
consent of the Bank, until payment in full of all outstanding Obligations, and
for so long as Bank may have any commitment to make an Advance hereunder,
Borrower shall do all of the following:

                  6.1 Good Standing. Borrower shall maintain or cause to be
maintained its and each of its Subsidiaries' corporate existence and good
standing in its jurisdiction of incorporation and maintain qualification in each
jurisdiction in which the failure to so qualify would reasonably be expected to
have a Material Adverse Effect. Borrower shall maintain, and shall cause each of
its Subsidiaries to maintain, in force all licenses, approvals and agreements,
the loss of which would reasonably be expected to have a Material Adverse
Effect.

                  6.2 Government Compliance. Borrower shall meet, and shall
cause each Subsidiary to meet, the minimum funding requirements of ERISA with
respect to any employee benefit plans subject to ERISA. Borrower shall comply,
and shall cause each Subsidiary to comply, with all statutes, laws, ordinances
and government rules and regulations to which it is subject, noncompliance with
which would reasonably be expected to have a Material Adverse Effect or a
material adverse effect on the Collateral or the priority of Bank's Lien on the
Collateral.

                  6.3 Financial Statements, Reports, Certificates. Borrower
shall deliver to Bank: (a) as soon as available, but in any event within thirty
(30) days after the end of each month, a company prepared balance sheet and
income statement covering Borrower's operations during such period, certified by
an officer of Borrower reasonably acceptable to Bank; (b) as soon as available,
but in any event within ninety (90) days after the end of Borrower's fiscal
year, audited financial statements of Borrower prepared in accordance with GAAP,
consistently applied, together with an unqualified opinion on such financial
statements of an independent certified public accounting firm reasonably
acceptable to Bank; (c) within five (5) days upon becoming available, copies of
all statements, reports and notices sent or made available generally by Borrower
to its security holders or to any holders of Subordinated Debt and all reports
on Form 10-K and 10-Q filed with the Securities and Exchange Commission; (d)
promptly upon receipt of notice thereof, a report of any legal actions pending
or threatened against Borrower or any Subsidiary that would reasonably be
expected to result in damages or costs to Borrower or any Subsidiary of One
Hundred Thousand Dollars ($100,000) or more; and (e) such budgets, sales
projections, operating plans or other financial information as Bank may
reasonably request from time to time.

                                       13
<PAGE>   17
         Within twenty (20) days after the last day of each month, Borrower
shall deliver to Bank a Borrowing Base Certificate signed by a Responsible
Officer in substantially the form of Exhibit C hereto, together with aged
listings of accounts receivable and accounts payable.

         Borrower shall deliver to Bank with the monthly financial statements a
Compliance Certificate signed by a Responsible Officer in substantially the form
of Exhibit D hereto.

         Bank shall have a right from time to time hereafter to audit Borrower's
Accounts at Borrower's expense, provided that such audits will be conducted no
more often than every six (6) months unless an Event of Default has occurred and
is continuing.

                  6.4 Inventory; Returns. Borrower shall keep all Inventory in
good and marketable condition, free from all material defects. Returns and
allowances, if any, as between Borrower and its account debtors shall be on the
same basis and in accordance with the usual customary practices of Borrower, as
they exist at the time of the execution and delivery of this Agreement. Borrower
shall promptly notify Bank of all returns and recoveries and of all disputes and
claims, where the return, recovery, dispute or claim involves more than Fifty
Thousand Dollars ($50,000).

                  6.5 Taxes. Borrower shall make, and shall cause each
Subsidiary to make, due and timely payment or deposit of all material federal,
state, and local taxes, assessments, or contributions required of it by law, and
will execute and deliver to Bank, on demand, appropriate certificates attesting
to the payment or deposit thereof; and Borrower will make, and will cause each
Subsidiary to make, timely payment or deposit of all material tax payments and
withholding taxes required of it by applicable laws, including, but not limited
to, those laws concerning F.I.C.A., F.U.T.A., state disability, and local,
state, and federal income taxes, and will, upon request, furnish Bank with proof
satisfactory to Bank indicating that Borrower or a Subsidiary has made such
payments or deposits; provided that Borrower or a Subsidiary need not make any
payment if the amount or validity of such payment is contested in good faith by
appropriate proceedings and is reserved against (to the extent required by GAAP)
by Borrower.

                  6.6 Insurance.

                           (a) Borrower, at its expense, shall keep the
Collateral insured against loss or damage by fire, theft, explosion, sprinklers,
and all other hazards and risks, and in such amounts, as ordinarily insured
against by other owners in similar businesses conducted in the locations where
Borrower's business is conducted on the date hereof. Borrower shall also
maintain insurance relating to Borrower's ownership and use of the Collateral in
amounts and of a type that are customary to businesses similar to Borrower's.

                           (b) All such policies of insurance shall be in such
form, with such companies, and in such amounts as reasonably satisfactory to
Bank. All such policies of property insurance shall contain a lender's loss
payable endorsement, in a form satisfactory to Bank, showing Bank as an
additional loss payee thereof and all liability insurance policies shall show
the Bank as an additional insured, and shall specify that the insurer must give
at least twenty (20) days notice to Bank before canceling its policy for any
reason. Upon Bank's request, Borrower shall deliver to Bank certified copies of
such policies of insurance and evidence of the payments of all premiums
therefor. So long as no Event of Default has occurred and is continuing,
Borrower shall have the option of applying the proceeds of any casualty policy
to the replacement or repair of destroyed or damaged property; provided, that
after the occurrence and during the continuance of an Event of Default, all
proceeds payable under any such policy shall, at the option of Bank, be payable
to Bank for application to the Obligations.

                  6.7 Principal Depository. Borrower shall maintain its
principal depository and operating accounts with Bank for so long as Bank offers
terms that are competitive with other commercial banks.

                                       14
<PAGE>   18
                  6.8 Quick Ratio. Borrower shall maintain, as of the last day
of each calendar month, a ratio Quick Assets to Current Liabilities of at least
0.50 to 1.00.

                  6.9 Debt-Net Worth Ratio. Borrower shall maintain, as of the
last day of each calendar month, a ratio of Total Liabilities less Subordinated
Debt to Tangible Net Worth plus subordinated Debt of not more than 2.75 to 1.00.

                  6.10 Tangible Net Worth. Borrower shall maintain, as of the
last day of each calendar month, a Tangible Net Worth plus Subordinated Debt of
not less than One Million Three Hundred Seventy Five Thousand Dollars
($1,375,000.00).

                  6.11 Profitability. As of the last day of each of Borrower's
second, third and fourth fiscal quarters, Borrower shall have a minimum net
profit, measured on a fiscal year to date basis, of not less than One Dollar
($1.00).

                  6.12 Registration of Intellectual Property Rights. Borrower
shall register or cause to be registered (to the extent not already registered)
with the United States Patent and Trademark Office or the United States
Copyright Office, as applicable, those intellectual property rights listed on
Exhibits A, B and C to the Collateral Assignment, Patent Mortgage and Security
Agreement delivered to Bank by Borrower in connection with this Agreement within
thirty (30) days of the date of this Agreement. Borrower shall register or cause
to be registered with the United States Patent and Trademark Office or the
United States Copyright Office, as applicable, those additional intellectual
property rights developed or acquired by Borrower from time to time in
connection with any product prior to the sale or licensing of such product to
any third party, including without limitation revisions or additions to the
intellectual property rights listed on such Exhibits A, B and C. Borrower shall
execute and deliver such additional instruments and documents from time to time
as Bank shall reasonable request to perfect Bank's security interest in such
additional intellectual property rights.

                  6.13 Further Assurances. At any time and from time to time
Borrower shall execute ;and deliver such further instruments and take such
further action as may reasonably be requested by Bank to effect the purposes of
this Agreement.

         7. NEGATIVE COVENANTS

                  Borrower covenants and agrees that, without the prior written
consent of Bank, which shall not be unreasonably withheld so long as any credit
hereunder shall be available and until payment in full of the outstanding
Obligations or for so long as Bank may have any commitment to make any Advances,
Borrower will not do any of the following:

                  7.1 Dispositions. Convey, sell, lease, transfer or otherwise
dispose of (collectively, a "Transfer"), or permit any of its Subsidiaries to
Transfer, all or any part of its business or property, other than: (i) Transfers
of Inventory in the ordinary course of business; (ii) Transfers of non-exclusive
licenses and similar arrangements for the use of the property of Borrower or its
Subsidiaries; or (iii) Transfers of worn-out or obsolete Equipment or Equipment
financed by other vendors; (iv) Transfers which constitute liquidation of
Investments permitted under Section 7.7; and (v) other Transfers not otherwise
permitted by this Section 7.1 not exceeding One Hundred Thousand Dollars
($100,00) in the aggregate in any fiscal year.

                  7.2 Change in Business. Engage in any business, or permit any
of its Subsidiaries to engage in any business, other than the businesses
currently engaged in by Borrower and its Subsidiaries and any business
substantially similar or related thereto (or incidental thereto), or, prior to
the existence of a public market for Borrower's securities, suffer a material
change in Borrower's ownership, other than the sale by Borrower of equity
securities of Borrower. Borrower will not, without thirty (30) days prior
written notification to Bank, relocate its chief executive office.

                                       15
<PAGE>   19
                  7.3 Mergers or Acquisitions. Merge or consolidate, or permit
any of its Subsidiaries to merge or consolidate, with or into any other business
organization, or acquire, or permit any of its Subsidiaries to acquire, all or
substantially all of the capital stock or property of another Person; provided
that this Section 7.3 shall not apply to (i) the purchase of inventory,
equipment or intellectual property rights in any transaction valued at less than
One Hundred Thousand Dollars ($100,000) in the ordinary course of business or
(ii) transactions among Subsidiaries or among Borrower and its Subsidiaries in
which Borrower is the surviving entity.

                  7.4 Indebtedness. Create, incur, assume or be or remain liable
with respect to any Indebtedness, or permit any Subsidiary so to do, other than
Permitted Indebtedness.

                  7.5 Encumbrances. Create, incur, assume or suffer to exist any
Lien with respect to any of its property, or assign or otherwise convey any
right to receive income, including the sale of any Accounts, or permit any of
its Subsidiaries so to do, except for Permitted Liens.

                  7.6 Distributions. Pay any dividends or make any other
distribution or payment on account of or in redemption, retirement or purchase
of any capital stock; provided, that (i) Borrower may declare and make any
dividend payment or other distribution payable in its equity securities, (ii)
Borrower may convert any of its convertible securities into other securities
pursuant to the terms of such convertible securities or otherwise in exchange
therefor and (iii) for so long as an Event of Default has not occurred, Borrower
may repurchase stock from former employees of Borrower in accordance with the
terms of repurchase or similar agreements between Borrower and such employees.

                  7.7 Investments. Directly or indirectly acquire or own, or
make any Investment in or to any Person, or permit any of its Subsidiaries so to
do, other than Permitted Investments.

                  7.8 Transactions with Affiliates. Directly or indirectly enter
into or permit to exist any material transaction with any Affiliate of Borrower
except for transactions that are in the ordinary course of Borrower's business,
upon fair and reasonable terms that are no less favorable to Borrower than would
be obtained in an arm's length transaction with a nonaffiliated Person and
except for transactions with a Subsidiary that are upon fair and reasonable
terms and transactions constituting Permitted Investments.

                  7.9 Subordinated Debt. Make any payment in respect of any
Subordinated Debt, or permit any of its Subsidiaries to make any such payment,
except in compliance with the terms of such Subordinated Debt, or amend any
provision contained in any documentation relating to the Subordinated Debt.

                  7.10 Inventory. Store the Inventory with a bailee,
warehouseman, or similar party unless Bank has received a pledge of the
warehouse receipt covering such Inventory. Except for Inventory sold in the
ordinary course of business and except for such other locations as Bank may
approve in writing, Borrower shall keep the Inventory only at the location set
forth in Section 10 hereof and such other locations of which Borrower gives Bank
prior written notice and as to which Borrower signs and files a financing
statement where needed to perfect Bank's security interest.

                  7.11 Compliance. Become an "investment company" controlled by
an "investment company," within the meaning of the Investment Company Act of
1940, or become principally engaged in, or undertake as one of its important
activities, the business of extending credit for the purpose of purchasing or
carrying margin stock, or use the proceeds of any Advance for such purpose. Fail
to meet the minimum funding requirements of ERISA, permit a Reportable Event or
Prohibited Transaction, as defined in ERISA, to occur, fail to comply with the
Federal Fair Labor Standards Act or violate any law or regulation, which
violation could have a Material Adverse Effect or a material adverse effect on
the Collateral or the priority of Bank's Lien on the Collateral, or permit any
of its Subsidiaries to do any of the foregoing.

                                       16
<PAGE>   20
         8. EVENTS OF DEFAULT

                  Subject to Section 12.9, any one or more of the following
events shall constitute an Event of Default by Borrower under this Agreement:

                  8.1 Payment Default. If Borrower fails to pay the principal
of, or any interest on, any Advances when due and payable; or fails to pay any
portion of any other Obligations not constituting such principal or interest,
including without limitation Bank Expenses, within thirty (30) days of receipt
by Borrower of an invoice for such other Obligations;

                  8.2 Covenant Default. If Borrower fails to perform any
obligation under Sections 6.7, 6.8, 6.9, 6.10 or 6.11 or violates any of the
covenants contained in Article 7 of this Agreement, or fails or neglects to
perform, keep, or observe any other material term, provision, condition,
covenant, or agreement contained in this Agreement, in any of the Loan
Documents, or in any other present or future agreement between Borrower and Bank
and as to any default under such other term, provision, condition, covenant or
agreement that can be cured, has failed to cure such default within ten (10)
days after Borrower receives notice thereof or any Responsible Officer of
Borrower becomes aware thereof; provided, however, that if the default cannot by
its nature be cured within the ten (10) day period or cannot after diligent
attempts by Borrower be cured within such ten (10) day period, and such default
is likely to be cured within a reasonable time, then Borrower shall have an
additional reasonable period (which shall not in any case exceed thirty (30)
days) to attempt to cure such default, and within such reasonable time period
the failure to have cured such default shall not be deemed an Event of Default
(provided that no Advances will be required to be made during such cure period);

                  8.3 Material Adverse Change. If there occurs a material
adverse change in Borrower's business or financial condition, or if there is a
material impairment of the prospect of repayment of any portion of the
Obligations or a material impairment of the value or priority of Bank's security
interests in the Collateral;

                  8.4 Attachment. If any material portion of Borrower's assets
is attached, seized, subjected to a writ or distress warrant, or is levied upon,
or comes into the possession of any trustee, receiver or person acting in a
similar capacity and such attachment, seizure, writ or distress warrant or levy
has not been removed, discharged or rescinded within thirty (30) days, or if
Borrower is enjoined, restrained, or in any way prevented by court order from
continuing to conduct all or any material part of its business affairs, or if a
judgment or other claim becomes a lien or encumbrance upon any material portion
of Borrower's assets, or if a notice of lien, levy, or assessment is filed of
record with respect to any of Borrower's assets by the United States Government,
or any department, agency, or instrumentality thereof, or by any state, county,
municipal, or governmental agency, and the same is not paid within twenty (20)
days after Borrower receives notice thereof, provided that none of the foregoing
shall constitute an Event of Default where such action or event is stayed or an
adequate bond has been posted pending a good faith contest by Borrower (provided
that no Advances will be required to be made during such cure period);

                  8.5 Insolvency. If Borrower becomes insolvent, or if an
Insolvency Proceeding is commenced by Borrower, or if an Insolvency Proceeding
is commenced against Borrower and is not dismissed or stayed within thirty (30)
days (provided that no Advances will be made prior to the dismissal of such
Insolvency Proceeding);

                  8.6 Other Agreements. If there is a default in any agreement
to which Borrower is a party with a third party or parties resulting in a right
by such third party or parties, whether or not exercised, to accelerate the
maturity of any Indebtedness in an amount in excess of Five Hundred Thousand
Dollars ($500,000) or that would reasonably be expected to have a Material
Adverse Effect;

                                       17
<PAGE>   21
                  8.7 Judgments. If a judgment or judgments for the payment of
money in an amount, individually or in the aggregate, of at least Five Hundred
Thousand Dollars ($500,000) shall be rendered against Borrower and shall remain
unsatisfied and unstayed for a period of thirty (30) days (provided that no
Advances will be made prior to the satisfaction or stay of such judgment); or

                  8.8 Misrepresentations. If any material misrepresentation or
material misstatement exists now or hereafter in any warranty or representation
set forth herein or in any certificate delivered to Bank by any Responsible
Officer pursuant to this Agreement or to induce Bank to enter into this
Agreement or any other Loan Document.

         9. BANK'S RIGHTS AND REMEDIES

                  9.1 Rights and Remedies. Upon the occurrence and during the
continuance of an Event of Default, Bank may, at its election, without notice of
its election and without demand, do any one or more of the following, all of
which are authorized by Borrower:

                           (a) Declare all Obligations, whether evidenced by
this Agreement, by any of the other Loan Documents, or otherwise, immediately
due and payable (provided that upon the occurrence of an Event of Default
described in Section 8.5 all Obligations shall become immediately due and
payable without any action by Bank);

                           (b) Cease advancing money or extending credit to or
for the benefit of Borrower under this Agreement or under any other agreement
between Borrower and Bank;

                           (c) Settle or adjust disputes and claims directly
with account debtors for amounts, upon terms and in whatever order that Bank
reasonably considers advisable;

                           (d) Without notice to or demand upon Borrower, make
such payments and do such acts as Bank considers necessary or reasonable to
protect its security interest in the Collateral. Borrower agrees to assemble the
Collateral if Bank so requires, and to make the Collateral available to Bank as
Bank may designate. Borrower authorizes Bank to enter the premises where the
Collateral is located, to take and maintain possession of the Collateral, or any
part of it, and to pay, purchase, contest, or compromise any encumbrance,
charge, or lien which in Bank's determination appears to be prior or superior to
its security interest and to pay all expenses incurred in connection therewith.
With respect to any of Borrower's owned premises, Borrower hereby grants Bank a
license to enter into possession of such premises and to occupy the same,
without charge, for up to one hundred twenty (120) days in order to exercise any
of Bank's rights or remedies provided herein, at law, in equity, or otherwise;

                           (e) Without notice to Borrower set off and apply to
the Obligations any and all (i) balances and deposits of Borrower held by Bank,
or (ii) indebtedness at any time owing to or for the credit or the account of
Borrower held by Bank;

                           (f) Ship, reclaim, recover, store, finish, maintain,
repair, prepare for sale, advertise for sale, and sell (in the manner provided
for herein) the Collateral. Bank is hereby granted a license or other right,
solely pursuant to the provisions of this Section 9.1, to use, without charge,
Borrower's labels, patents, copyrights, rights of use of any name, trade
secrets, trade names, trademarks, service marks, and advertising matter, or any
property of a similar nature, as it pertains to the Collateral, in completing
production of, advertising for sale, and selling any Collateral and, in
connection with Bank's exercise of its rights under this Section 9.1, Borrower's
rights under all licenses and all franchise agreements shall inure to Bank's
benefit;

                           (g) Sell the Collateral at either a public or private
sale, or both, by way of one or more contracts or transactions, for cash or on
terms, in such manner and at such places (including Borrower's premises) as Bank
determines is commercially reasonable;

                                       18
<PAGE>   22
                           (h) Bank may credit bid and purchase at any public
sale; and

                           (i) Any deficiency that exists after disposition of
the Collateral as provided above will be paid immediately by Borrower.

                  9.2 Power of Attorney. Effective only upon the occurrence and
during the continuance of an Event of Default, Borrower hereby irrevocably
appoints Bank (and any of Bank's designated officers, or employees) as
Borrower's true and lawful attorney to: (a) send requests for verification of
Accounts or notify account debtors of Bank's security interest in the Accounts;
(b) endorse Borrower's name on any checks or other forms of payment or security
that may come into Bank's possession; (c) sign Borrower's name on any invoice or
bill of lading relating to any Account, drafts against account debtors,
schedules and assignments of Accounts, verifications of Accounts, and notices to
account debtors; (d) make, settle, and adjust all claims under and decisions
with respect to Borrower's policies of insurance; and (e) settle and adjust
disputes and claims respecting the accounts directly with account debtors, for
amounts and upon terms which Bank determines to be reasonable; provided Bank may
exercise such power of attorney to sign the name of Borrower on any of the
documents described in Section 4.2 regardless of whether an Event of Default has
occurred. The appointment of Bank as Borrower's attorney in fact, and each and
every one of Bank's rights and powers, being coupled with an interest, is
irrevocable until all of the Obligations have been fully repaid and Bank's
obligation to provide Advances hereunder is terminated.

                  9.3 Accounts Collection. Upon the occurrence and during the
continuation of an Event of Default, Bank may notify any Person owing funds to
Borrower of Bank's security interest in such funds and verify the amount of such
Account. Borrower shall collect all amounts owing to Borrower for Bank, receive
in trust all payments as Bank's trustee, and immediately deliver such payments
to Bank in their original form as received from the account debtor, with proper
endorsements for deposit.

                  9.4 Bank Expenses. If Borrower fails to pay any amounts or
furnish any required proof of payment due to third persons or entities, as
required under the terms of this Agreement, then Bank may do any or all of the
following: (a) make payment of the same or any part thereof; (b) set up such
reserves under the Revolving Facility as Bank deems necessary to protect Bank
from the exposure created by such failure; or (c) obtain and maintain insurance
policies of the type discussed in Section 6.6 of this Agreement, and take any
action with respect to such policies as Bank deems prudent. Any amounts so paid
or deposited by Bank shall constitute Bank Expenses, shall be immediately due
and payable, and shall bear interest at the then applicable rate hereinabove
provided, and shall be secured by the Collateral. Any payments made by Bank
shall not constitute an agreement by Bank to make similar payments in the future
or a waiver by Bank of any Event of Default under this Agreement.

                  9.5 Bank's Liability for Collateral. So long as Bank complies
with its obligations under Section 9207 of the Code, Bank shall not in any way
or manner be liable or responsible for: (a) the safekeeping of the Collateral;
(b) any loss or damage thereto occurring or arising in any manner or fashion
from any cause; (c) any diminution in the value thereof; or (d) any act or
default of any carrier, warehouseman, bailee, forwarding agency, or other person
whomsoever. Subject to the foregoing, all risk of loss, damage or destruction of
the Collateral shall be borne by Borrower.

                  9.6 Remedies Cumulative. Bank's rights and remedies under this
Agreement, the Loan Documents, and all other agreements shall be cumulative.
Bank shall have all other rights and remedies not inconsistent herewith as
provided under the Code, by law, or in equity. No exercise by Bank of one right
or remedy shall be deemed an election, and no waiver by Bank of any Event of
Default on Borrower's part shall be deemed a continuing waiver. No delay by Bank
shall constitute a waiver, election, or acquiescence by it. No waiver by Bank
shall be effective unless made in a written document signed on behalf of Bank
and then shall be effective only in the specific instance and for the specific
purpose for which it was given.

                                       19
<PAGE>   23
                  9.7 Demand; Protest. Borrower waives demand, protest, notice
of protest, notice of dishonor, notice of payment and nonpayment, nonpayment at
maturity, release, compromise, settlement, extension, or renewal of accounts,
documents, instruments, chattel paper, and guarantees at any time held by Bank
on which Borrower may in any way be liable.

         10. NOTICES

                  Unless otherwise provided in this Agreement, all notices or
demands by any party relating to this Agreement or any other agreement entered
into in connection herewith shall be in writing and (except for financial
statements and other informational documents which may be sent by first-class
mail, postage prepaid) shall be personally delivered or sent by a recognized
overnight delivery service, certified mail, postage prepaid, return receipt
requested, or by telefacsimile to Borrower or to Bank, as the case may be, at
its addresses set forth below:

         If to Borrower:            FAFCO, Inc.
                                    2690 Middlefield Road
                                    Redwood City, CA 94063
                                    Attn:  Mr. Alex Watt
                                    FAX:  (415) 363-2890

         If to Bank:                Silicon Valley Bank
                                    3003 Tasman Drive
                                    Santa Clara, California 95054
                                    Attn:  Mr. James Marshall
                                    FAX:  (408) 727-8728

         The parties hereto may change the address at which they are to receive
notices hereunder, by notice in writing in the foregoing manner given to the
other.

         11. CHOICE OF LAW AND VENUE; JURY TRIAL WAIVER

                  This Agreement shall be governed by, and construed in
accordance with, the internal laws of the State of California, without regard to
principles of conflicts of law. Each of Borrower and Bank hereby submits to the
exclusive jurisdiction of the state and Federal courts located in the County of
Santa Clara, State of California. BORROWER AND BANK EACH HEREBY WAIVE THEIR
RESPECTIVE RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR
ARISING OUT OF ANY OF THE LOAN DOCUMENTS OR ANY OF THE TRANSACTIONS CONTEMPLATED
THEREIN, INCLUDING CONTRACT CLAIMS, TORT CLAIMS, BREACH OF DUTY CLAIMS, AND ALL
OTHER COMMON LAW OR STATUTORY CLAIMS. EACH PARTY RECOGNIZES AND AGREES THAT THE
FOREGOING WAIVER CONSTITUTES A MATERIAL INDUCEMENT FOR IT TO ENTER INTO THIS
AGREEMENT. EACH PARTY REPRESENTS AND WARRANTS THAT IT HAS REVIEWED THIS WAIVER
WITH ITS LEGAL COUNSEL AND THAT IT KNOWINGLY AND VOLUNTARILY WAIVES ITS JURY
TRIAL RIGHTS FOLLOWING CONSULTATION WITH LEGAL COUNSEL.

         12. GENERAL PROVISIONS

                  12.1 Successors and Assigns.

                           (a) This Agreement shall bind and inure to the
benefit of the respective successors and permitted assigns of each of the
parties; provided, however, that neither this Agreement nor any rights hereunder
may be assigned by Borrower without Bank's prior written consent, which consent
may be granted or withheld in Bank's sole discretion. Bank shall have the right
without the consent of or notice to Borrower to sell, transfer, negotiate, or
grant participations in

                                       20
<PAGE>   24
all or any part of, or any interest in Bank's obligations, rights and benefits
hereunder, subject to the provisions of this Section 12.1.

                           (b) Bank may sell, negotiate or grant participations
to other financial institutions in all or part of the obligations of the
Borrower outstanding under the Loan Documents, without notice to or the approval
of Borrower; provided that any such sale, negotiation or participation shall be
in compliance with the applicable federal and state securities laws and the
other requirements of this Section 12.1. Notwithstanding the sale, negotiation
or grant of participations, Bank shall remain solely responsible for the
performance of its obligations under this Agreement, and Borrower shall continue
to deal solely and directly with Bank in connection with this Agreement and the
other Loan Documents.

                           (c) The grant of a participation interest shall be on
such terms as Bank determines are appropriate, provided only that (1) the holder
of such a participation interest shall not have any of the rights of Bank under
this Agreement except, if the participation agreement so provides, rights to
demand the payment of costs of the type described in Section 2.6. provided that
the aggregate amount that the Borrower shall be required to pay under Section
2.6 with respect to any ratable share of the Committed Line or any Advance
(including amounts paid to participants) shall not exceed the amount that
Borrower would have had to pay if no participation agreements had been entered
into, and (2) the consent of the holder of such a participation interest shall
not be required for amendments or waivers of provisions of the Loan Agreement
other than those which (i) increase the amount of the Committed Line, (ii)
extend the term of this Agreement, (iii) decrease the rate of interest or the
amount of any fee or any other amount payable to Bank under this Agreement, (iv)
reduce the principal amount payable under this Agreement, or (v) extend the date
fixed for the payment of principal or interest or any other amount payable under
this Agreement.

                           (d) Bank may assign, from time to time, all or any
portion of the Committed Line to an Affiliate of Bank or to The Federal Reserve
Bank or, subject to the prior written approval of Borrower (which approval will
not be unreasonably withheld), to any other financial institution; provided,
that (i) the amount of the Committed Line being assigned pursuant to each such
assignment shall in no event be less than $400,000 and shall be an integral
multiple of $200,000 and (ii) the parties to each such assignment shall execute
and deliver to Borrower an assignment agreement in a form reasonably acceptable
to each. Upon such execution and delivery, from and after the effective date
specified in such assignment agreement (x) the assignee thereunder shall be a
party hereto and, to the extent that rights and obligations hereunder have been
assigned to it pursuant to such assignment agreement, have the rights and
obligations of a Bank hereunder and (y) Bank shall, to the extent that rights
and obligations hereunder have been assigned by it pursuant to such assignment
agreement, relinquish its rights and be released from its obligations under this
Agreement (other than pursuant to this Section 12.1(d)), and, in the case of an
assignment agreement covering all or the remaining portion of Bank's rights and
obligations under this Agreement, Bank shall cease to be a party hereto. In the
event of an assignment hereunder, the parties agree to amend this Agreement to
the extent necessary to reflect the mechanical changes which are necessary to
document such assignment. Each party shall bear its own expenses (including
without limitation attorneys' fees and costs) with respect to such an amendment.

                  12.2 Indemnification. Borrower shall defend, indemnify and
hold harmless Bank and its officers, employees, and agents against: (a) all
obligations, demands, claims, and liabilities claimed or asserted by any other
party in connection with the transactions contemplated by this Agreement; and
(b) all losses or Bank Expenses in any way suffered, incurred, or paid by Bank
as a result of or in any way arising out of, following, or consequential from or
to transactions between Bank and Borrower whether under this Agreement, or
otherwise (including without limitation reasonable attorneys fees and expenses),
except for losses caused by Bank's gross negligence or willful misconduct.

                                       21
<PAGE>   25
                  12.3 Time of Essence. Time is of the essence for the
performance of all obligations set forth in this Agreement.

                  12.4 Severability of Provisions. Each provision of this
Agreement shall be severable from every other provision of this Agreement for
the purpose of determining the legal enforceability of any specific provision.

                  12.5 Amendments in Writing, Integration. This Agreement cannot
be amended or terminated orally. All prior agreements, understandings,
representations, warranties, and negotiations between the parties hereto with
respect to the subject matter of this Agreement, if any, are merged into this
Agreement and the Loan Documents. Notwithstanding the foregoing, all Financing
Statements executed by the Borrower for the benefit of Bank and filed with the
California Secretary of State shall remain in full force and effect.

                  12.6 Counterparts. This Agreement may be executed in any
number of counterparts and by different parties on separate counterparts, each
of which, when executed and delivered, shall be deemed to be an original, and
all of which, when taken together, shall constitute but one and the same
Agreement.

                  12.7 Survival. All covenants, representations and warranties
made in this Agreement shall continue in full force and effect so long as any
Obligations (excluding Obligations under Section 2.6 and 12.2 to the extent they
remain inchoate at the time the outstanding payment Obligations are paid in
full) remain outstanding. The obligations of Borrower to indemnify Bank with
respect to the expenses, damages, losses, costs and liabilities described in
Section 12.2 shall survive until all applicable statute of limitations periods
with respect to actions that may be brought against Bank have run, provided that
so long as the obligations set forth in the first sentence of this Section 12.7
have been satisfied, and Bank has no commitment to make any Advances or to make
any other loans to Borrower, Bank shall release all security interests granted
hereunder and redeliver all Collateral held by it in accordance with applicable
law.

                  12.8 Confidentiality. In handling any confidential information
Bank shall exercise the same degree of care that it exercises with respect to
its own proprietary information of the same types to maintain the
confidentiality of any non-public information thereby received or received
pursuant to this Agreement except that disclosure of such information may be
made (i) to the subsidiaries or affiliates of Bank in connection with their
present or prospective business relations with Borrower, (ii) to prospective
transferees or purchasers of any interest in the Loans, provided that they have
entered into a comparable confidentiality agreement in favor of Borrower and
have delivered a copy to Borrower, (iii) as required by law, regulations, rule
or order, subpoena, judicial order or similar order (iv) as may be required in
connection with the examination, audit or similar investigation of Bank and (v)
as Bank may deem appropriate in the exercise of its remedies under this
Agreement. Confidential information hereunder shall not include information that
either: (a) is in the public domain or in the knowledge or possession of Bank
when disclosed to Bank, or becomes part of the public domain after disclosure to
Bank through no fault of Bank; or (b) is disclosed to Bank by a third party,
provided Bank does not have actual knowledge that such third party is prohibited
from disclosing such information. Notwithstanding any provision of this
Agreement to the contrary, neither Borrower nor any of its Subsidiaries will be
required to disclose, permit the inspection, examination, copying or making
extracts of, or discussions of: any document, information or other matter (i)
prior to the occurrence of an Event of Default that constitutes non-financial
trade secrets or non-financial proprietary information (provided that the terms
of agreements that generate Accounts shall not be deemed to be "non-financial
trade secrets or non-financial proprietary information"), or (ii) in respect to
which disclosure to Bank (or designated representative) is then prohibited by
(a) law, or (b) an agreement binding upon Borrower or any Subsidiary that was
not entered into by Borrower or such Subsidiary for the primary purpose of
concealing information from Bank.

                                       22
<PAGE>   26
         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of the date first above written.

                                            FAFCO, INC.



                                            By: /s/ Alex N. Watt
                                               --------------------------------
                                            Title: Vice President- Finance
                                                  -----------------------------

                                            SILICON VALLEY BANK



                                            By: /s/Julie Schneider
                                               --------------------------------
                                            Title: AVB
                                                  -----------------------------


TO BE ATTACHED TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT DATED JUNE 5,
1996 BETWEEN FAFCO, INC. AND SILICON VALLEY BANK.

                                       23
<PAGE>   27
                                    EXHIBIT A

         The Collateral shall consist of all right, title and interest of
Borrower in and to the following:

         (a) All goods and equipment now owned or hereafter acquired, including,
without limitation, all machinery, fixtures, vehicles (including motor vehicles
and trailers), and any interest in any of the foregoing, and all attachments,
accessories, accessions, replacements, substitutions, additions, and
improvements to any of the foregoing, wherever located;

         (b) All inventory, now owned or hereafter acquired, including, without
limitation, all merchandise, raw materials, parts, supplies, packing and
shipping materials, work in process and finished products including such
inventory as is temporarily out of Borrower's custody or possession or in
transit and including any returns upon any accounts or other proceeds, including
insurance proceeds, resulting from the sale or disposition of any of the
foregoing and any documents of title representing any of the above, and
Borrower's Books relating to any of the foregoing;

         (c) All contract rights and general intangibles now owned or hereafter
acquired, including, without limitation, goodwill, trademarks, servicemarks,
trade styles, trade names, patents, patent applications, leases, license
agreements, franchise agreements, blueprints, drawings, purchase orders,
customer lists, route lists, infringements, claims, computer programs, computer
discs, computer tapes, literature, reports, catalogs, design rights, income tax
refunds, payments of insurance and rights to payment of any kind;

         (d) All now existing and hereafter arising accounts, contract rights,
royalties, license rights and all other forms of obligations owing to Borrower
arising out of the sale or lease of goods, the licensing of technology or the
rendering of services by Borrower, whether or not earned by performance, and any
and all credit insurance, guaranties, and other security therefor, as well as
all merchandise returned to or reclaimed by Borrower and Borrower's Books
relating to any of the foregoing;

         (e) All documents, cash, deposit accounts, securities, letters of
credit, certificates of deposit, instruments and chattel paper now owned or
hereafter acquired and Borrower's Books relating to the foregoing;

         (f) All copyright rights, copyright applications, copyright
registrations and like protections in each work of authorship and derivative
work thereof, whether published or unpublished, now owned or hereafter acquired;
all trade secret rights, including all rights to unpatented inventions,
know-how, operating manuals, license rights and agreements and confidential
information, now owned or hereafter acquired; all mask work or similar rights
available for the protection of semiconductor chips, now owned or hereafter
acquired; all claims for damages by way of any past, present and future
infringement of any of the foregoing; and

         (g) Any and all claims, rights and interests in any of the above and
all substitutions for, -additions and accessions to and proceeds thereof.

                                       24
<PAGE>   28
                                    EXHIBIT B

                   LOAN PAYMENT/ADVANCE TELEPHONE REQUEST FORM

              DEADLINE FOR SAME DAY PROCESSING IS 3:00 P.M., P.S.T.

TO: CENTRAL CLIENT SERVICE DIVISION               DATE:  ----------------------

FAX#: (408) 496-2426                              TIME:  ----------------------

FROM:                               FAFCO, Inc.
     --------------------------------------------------------------------------
                             CLIENT NAME (BORROWER)
REQUESTED BY:
             ------------------------------------------------------------------
                            AUTHORIZED SIGNER'S NAME

AUTHORIZED SIGNATURE:
                     ----------------------------------------------------------
PHONE NUMBER:
             ------------------------------------------------------------------
FROM ACCOUNT #                            TO ACCOUNT #
              --------------------------               ------------------------
REQUESTED TRANSACTION TYPE                      REQUEST DOLLAR AMOUNT
- --------------------------                      ---------------------
PRINCIPAL INCREASE (ADVANCE)              $
                                           ------------------------------------
PRINCIPAL PAYMENT (ONLY)                  $
                                           ------------------------------------
INTEREST PAYMENT (ONLY)                   $
                                           ------------------------------------
PRINCIPAL AND INTEREST (PAYMENT)          $
                                           ------------------------------------
OTHER INSTRUCTIONS:
                   ------------------------------------------------------------

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

         All representations and warranties of Borrower stated in the Loan
Agreement are true, correct and complete in all material respects as of the date
of the telephone request for and Advance confirmed by this Borrowing
Certificate; provided, however, that those representations and warranties
expressly referring to another date shall be true, correct and complete in all
material respects as of such date.

                                  BANK USE ONLY

TELEPHONE REQUEST:
- ------------------

The following person is authorized to request the loan payment transfer/loan on
the advance designated account and is known to me.

- --------------------------------------          -------------------------------
         Authorized Requester                              Phone #

- --------------------------------------          -------------------------------
         Received by (Bank)                                Phone #

          ---------------------------------------------------------
                           Authorized Signature (Bank)

                                       25
<PAGE>   29
[CAPTION]
                                    EXHIBIT C
                           BORROWING BASE CERTIFICATE
- -------------------------------------------------------------------------------
Borrower: FAFCO, INC.                               Lender: Silicon Valley Bank

Commitment Amount: $1,000,000
- -------------------------------------------------------------------------------
<TABLE>
<S>                                                         <C>          <C>   
ACCOUNTS RECEIVABLE
      1.   Accounts Receivable Book Value as of                          $____________
      2.   Additions (please explain on reverse)                         $____________
      3.   TOTAL ACCOUNTS RECEIVABLE                                     $____________

ACCOUNTS RECEIVABLE DEDUCTIONS (without duplication)
      4.   Amounts over 90 days due (Distributors over 60)   $_________
      5.   Balance of 50% over 90 day accounts               $_________
      6.   Concentration Limits                              $_________
      7.   Foreign Accounts                                  $_________
      8.   Governmental Accounts                             $_________
      9.   Contra Accounts                                   $_________
      10.  Promotion or Demo Accounts                        $_________
      11.  Intercompany/Employee Accounts                    $_________
      12.  Other (please explain on reverse)                 $_________
      13.  TOTAL ACCOUNTS RECEIVABLE DEDUCTIONS              $_________
      14.  Eligible Accounts (#3 minus #13)                              $____________
      15.  LOAN VALUE OF ACCOUNT'S (75% of #14)                          $____________

BALANCES
      16.  Maximum Loan Amount                                           $1,000,000
      17.  Total Funds Available (Lesser of #16 or #15)      $_________
      18.  Present balance owing on Line of Credit                       $____________
      19.  RESERVE POSITION (#17 minus #18)                              $____________
</TABLE>

The undersigned represents and warrants that the foregoing is true, complete and
correct, and that the information reflected in this Borrowing Base Certificate
complies with the representations and warranties set forth in the Loan and
Security Agreement between the undersigned and Silicon Valley Bank.

COMMENTS:


FAFCO, INC.


By:______________________________________
       Authorized Signer

                                       26
<PAGE>   30
                                    EXHIBIT D
                             COMPLIANCE CERTIFICATE

TO:      SILICON VALLEY BANK

FROM:    FAFCO, INC.

         The undersigned authorized officer of FAFCO, Inc., a California
corporation, hereby certifies that in accordance with the terms and conditions
of the Loan and Security Agreement between Borrower and Bank (the "Agreement"),
(i) Borrower is in complete compliance for the period ending ___________with all
required covenants except as noted below and (ii) all representations and
warranties of Borrower stated in the Agreement are true and correct in all
material respects as of the date hereof. Attached herewith are the required
documents supporting the above certification. The Officer further certifies that
these are prepared in accordance with Generally Accepted Accounting Principles
(GAAP) and are consistently applied from one period to the next except as
explained in an accompanying letter or footnotes.

 PLEASE INDICATE COMPLIANCE STATUS BY CIRCLING YES/NO UNDER "COMPLIES" COLUMN.

<TABLE>
<CAPTION>
REPORTING COVENANT                               REQUIRED                                                   COMPLIES
- ------------------                               --------                                                   --------
<S>                                              <C>                           <C>                      <C>        <C>
Monthly financial statements                     Monthly within 30 days                                 Yes         No
Annual (CPA Audited)                             FYE within 90 days                                     Yes         No
A/R & A/P Agings                                 Monthly within 20 days                                 Yes         No
A/R Audit                                        Initial and Semi-Annual                                Yes         No

FINANCIAL COVENANT                               REQUIRED                         ACTUAL                    COMPLIES
- ------------------                               --------                         ------                    --------
Maintain on a Monthly Basis:
   Minimum Quick Ratio                           0.50:1.00                        _____:1:00            Yes         No
   Minimum Tangible Net Worth                    $1,050,000                       $____                 Yes         No
                                                 plus 100% net equity
                                                 from subordinated debt
   Maximum Debt/Tangible Net Worth               2.75:1.00                        _____:1:00            Yes         No
Maintain on a Quarterly Basis:
   Profitability*                                $1.00                            $____                 Yes         No
</TABLE>

*    Measured on a year to date basis. Tested for second, third and fourth
     quarters only.

COMMENTS REGARDING EXCEPTIONS:  See Attached.

Sincerely.

_____________________________________________
SIGNATURE

_____________________________________________
TITLE

_____________________________________________
DATE

                                       27




<TABLE> <S> <C>

<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                          69,500
<SECURITIES>                                         0
<RECEIVABLES>                                2,795,600
<ALLOWANCES>                                   528,900
<INVENTORY>                                  1,031,600
<CURRENT-ASSETS>                             3,568,300
<PP&E>                                       2,450,000
<DEPRECIATION>                             (2,093,800)
<TOTAL-ASSETS>                               4,515,200
<CURRENT-LIABILITIES>                        2,458,000
<BONDS>                                        943,600
                                0
                                          0
<COMMON>                                       412,200
<OTHER-SE>                                     701,400
<TOTAL-LIABILITY-AND-EQUITY>                 4,515,200
<SALES>                                      5,059,900
<TOTAL-REVENUES>                             5,096,300
<CGS>                                        2,907,400
<TOTAL-COSTS>                                2,907,400
<OTHER-EXPENSES>                                58,000
<LOSS-PROVISION>                                25,900
<INTEREST-EXPENSE>                              81,100
<INCOME-PRETAX>                                439,000
<INCOME-TAX>                                    32,800
<INCOME-CONTINUING>                            406,200
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   406,200
<EPS-PRIMARY>                                      .13
<EPS-DILUTED>                                      .13
        

</TABLE>


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