SPS TECHNOLOGIES INC
SC 13D/A, 2000-01-31
BOLTS, NUTS, SCREWS, RIVETS & WASHERS
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               SECURITIES AND EXCHANGE COMMISSION
                     Washington, D.C.  20549


                          SCHEDULE 13D

  Under the Securities Exchange Act of 1934 (Amendment No. 32)

                        SPS TECHNOLOGIES, Inc.
                        (Name of Issuer)


             Common Stock Par Value $1.00 Per Share
                 (Title of Class of Securities)


                           784626103
                         (CUSIP Number)



         James E. McKee, Gabelli Asset Management Inc.,
     One Corporate Center, Rye, NY 10580-1434 (914) 921-5294
    (Name, Address and Telephone Number of Person Authorized
             to Receive Notices and Communications)


                          January 27, 2000

     (Date of Event Which Requires Filing of this Statement)


If the filing person has previously filed a statement on Schedule
13G to report the acquisition that is the subject of this Schedule
13D, and is filing this Schedule because of Sections 240.13d-1(e),
240.13d-1(f) or 240.13d-1(g), check the following box [  ].


<PAGE>
_________________________________________________________________

CUSIP No. 784626103                                        13D
_________________________________________________________________
(1)  NAMES OF REPORTING PERSONS
      I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
      Gabelli Funds, LLC            I.D. No. 13-4044523
_________________________________________________________________
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
                                                       ____
                                                  (a) /___/
                                                       ____
                                                  (b) /___/
_________________________________________________________________
(3)  SEC USE ONLY
_________________________________________________________________
(4)  SOURCE OF FUNDS*
      OO-Funds of investment company clients
_________________________________________________________________
(5)  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
     REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)          _____
                                                     /    /
_________________________________________________________________
(6)  CITIZENSHIP OR PLACE OF ORGANIZATION
      New York
_________________________________________________________________
                                        : (7) SOLE VOTING POWER
                                        :     497,000 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None    (Item 5)
 OWNED BY EACH REPORTING                :________________________
 PERSON WITH                            : (9) SOLE DISPOSITIVE
                                        :     POWER
                                        :     497,000 (Item 5)
                                        :________________________
                                        :(10) SHARED DISPOSITIVE
                                        :     POWER
                                        :     None  (Item 5)
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      497,000 (Item 5)
_________________________________________________________________
(12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11
     EXCLUDES CERTAIN SHARES*                         _____
                                                     /    /
_________________________________________________________________
(13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
      3.95%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      IA
_________________________________________________________________
              *SEE INSTRUCTIONS BEFORE FILLING OUT!
________________________________________________________________

CUSIP No. 784626103                                        13D
_________________________________________________________________
(1)  NAMES OF REPORTING PERSONS
      I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
      GAMCO Investors, Inc.              I.D. No. 13-4044521
_________________________________________________________________
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
                                                       ____
                                                  (a) /___/
                                                       ____
                                                  (b) /___/
_________________________________________________________________
(3)  SEC USE ONLY
_________________________________________________________________
(4)  SOURCE OF FUNDS*
      OO-Funds of investment advisory clients
_________________________________________________________________
(5)  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
     REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)          _____
                                                     /    /
_________________________________________________________________
(6)  CITIZENSHIP OR PLACE OF ORGANIZATION
      New York
_________________________________________________________________
                                        : (7) SOLE VOTING POWER
                                        :     2,489,350 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None
 OWNED BY EACH REPORTING                :________________________
 PERSON WITH                            : (9) SOLE DISPOSITIVE
                                        :     POWER
                                        :     2,529,350 (Item 5)
                                        :________________________
                                        :(10) SHARED DISPOSITIVE
                                        :     POWER
                                        :     None
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      2,529,350 (Item 5)
_________________________________________________________________

(12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11
     EXCLUDES CERTAIN SHARES*                         ____
                                                     /___/
_________________________________________________________________
(13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
      20.08%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      IA, CO
_________________________________________________________________
              *SEE INSTRUCTIONS BEFORE FILLING OUT!
_________________________________________________________________

CUSIP No. 784626103                                        13D
_________________________________________________________________
(1)  NAMES OF REPORTING PERSONS
      I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
      Gabelli Group Capital Partners, Inc.   I.D. No. 13-3056041
_________________________________________________________________
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
                                                       ____
                                                  (a) /___/
                                                       ____
                                                  (b) /___/
_________________________________________________________________
(3)  SEC USE ONLY
_________________________________________________________________
(4)  SOURCE OF FUNDS*
      WC
_________________________________________________________________
(5)  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
     REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)          _____
                                                     /    /
_________________________________________________________________
(6)  CITIZENSHIP OR PLACE OF ORGANIZATION
      New York
_________________________________________________________________
                                        : (7) SOLE VOTING POWER
                                        :     2,200 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None  (Item 5)
 OWNED BY EACH REPORTING                :________________________
 PERSON WITH                            : (9) SOLE DISPOSITIVE
                                        :     POWER
                                        :     2,200 (Item 5)
                                        :________________________
                                        :(10) SHARED DISPOSITIVE
                                        :     POWER
                                        :     None  (Item 5)
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      2,200 (Item 5)
_________________________________________________________________
(12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11
     EXCLUDES CERTAIN SHARES*                         _____
                                                     /  x /
_________________________________________________________________
(13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
      0.02%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
     HC, CO
_________________________________________________________________
              *SEE INSTRUCTIONS BEFORE FILLING OUT!
________________________________________________________________

CUSIP No. 784626103                                        13D
_________________________________________________________________
(1)  NAMES OF REPORTING PERSONS
      I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
      Gabelli Asset Management Inc.       I.D. No. 13-4007862
_________________________________________________________________
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
                                                       ____
                                                  (a) /___/
                                                       ____
                                                  (b) /___/
_________________________________________________________________
(3)  SEC USE ONLY
_________________________________________________________________
(4)  SOURCE OF FUNDS*
      None
_________________________________________________________________
(5)  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
     REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)          _____
                                                     /    /
_________________________________________________________________
(6)  CITIZENSHIP OR PLACE OF ORGANIZATION
      New York
_________________________________________________________________
                                        : (7) SOLE VOTING POWER
                                        :     None (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None
 OWNED BY EACH REPORTING                :________________________
 PERSON WITH                            : (9) SOLE DISPOSITIVE
                                        :     POWER
                                        :     None (Item 5)
                                        :________________________
                                        :(10) SHARED DISPOSITIVE
                                        :     POWER
                                        :     None
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      None (Item 5)
_________________________________________________________________

(12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11
     EXCLUDES CERTAIN SHARES*                         ____
                                                     /_X_/
_________________________________________________________________
(13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
      0.00%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      HC, CO
_________________________________________________________________
              *SEE INSTRUCTIONS BEFORE FILLING OUT!
_________________________________________________________________

CUSIP No. 784626103                                        13D
_________________________________________________________________
(1)  NAMES OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
     Marc J. Gabelli
________________________________________________________________
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
                                                       ____
                                                  (a) /___/
                                                       ____
                                                  (b) /___/
_________________________________________________________________
(3)  SEC USE ONLY
_________________________________________________________________
(4)  SOURCE OF FUNDS*
      None
_________________________________________________________________
(5)  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
     REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)          ____
                                                     /    /
_________________________________________________________________
(6)  CITIZENSHIP OR PLACE OF ORGANIZATION
      USA
_________________________________________________________________
                                        : (7) SOLE VOTING POWER
                                        :     None   (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None
 OWNED BY EACH REPORTING                :________________________
 PERSON WITH                            : (9) SOLE DISPOSITIVE
                                        :     POWER
                                        :     None   (Item 5)
                                        :________________________
                                        :(10) SHARED DISPOSITIVE
                                        :     POWER
                                        :     None
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     None   (Item 5)
_________________________________________________________________
(12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11
     EXCLUDES CERTAIN SHARES*                         _____
                                                     /    /
_________________________________________________________________
(13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
      0.00%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      IN
_________________________________________________________________

              *SEE INSTRUCTIONS BEFORE FILLING OUT!
_________________________________________________________________

CUSIP No. 784626103                                        13D
_________________________________________________________________
(1)  NAMES OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
     Mario J. Gabelli
_________________________________________________________________
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
                                                       ____
                                                  (a) /___/
                                                       ____
                                                  (b) /___/
_________________________________________________________________
(3)  SEC USE ONLY
_________________________________________________________________
(4)  SOURCE OF FUNDS*
      PF
_________________________________________________________________
(5)  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
     REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)          ____
                                                     /    /
_________________________________________________________________
(6)  CITIZENSHIP OR PLACE OF ORGANIZATION
      USA
_________________________________________________________________
                                        : (7) SOLE VOTING POWER
                                        :     13,000  (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None
 OWNED BY EACH REPORTING                :________________________
 PERSON WITH                            : (9) SOLE DISPOSITIVE
                                        :     POWER
                                        :     13,000  (Item 5)
                                        :________________________
                                        :(10) SHARED DISPOSITIVE
                                        :     POWER
                                        :     None
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     13,000  (Item 5)
_________________________________________________________________
(12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11
     EXCLUDES CERTAIN SHARES*                         _____
                                                     /  x /
_________________________________________________________________
(13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
      0.10%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      IN
_________________________________________________________________

              *SEE INSTRUCTIONS BEFORE FILLING OUT!
Item 1.   Security and Issuer
          This Amendment No. 32 to Schedule 13D on the Common Stock
of SPS Technologies, Inc. (the "Issuer") is being filed on behalf
of the undersigned to amend the Schedule 13D, as amended (the
"Schedule 13D") which was originally filed on August 26, 1988.
Unless otherwise indicated, all capitalized terms used herein but
not defined herein shall have the same meaning as set forth in the
Schedule 13D.
Item 2.   Identity and Background
          This statement is being filed by Mario J. Gabelli ("Mario
Gabelli"), Marc J. Gabelli ("Marc Gabelli") and various entities
which either one directly or indirectly controls or for which
either one acts as chief investment officer.  These entities,
except for Lynch Corporation ("Lynch"), Spinnaker Industries,
Incorporated ("Spinnaker"), Western New Mexico Telephone Company
("Western New Mexico"), Entoleter, Inc. ("Entoleter"),  Lynch
Telecommunications Corporation ("Lynch Telecom"), Lynch Telephone
Corporation ("Lynch Telephone"), Lynch Interactive Corporation
("Interactive"), Brighton Communications Corporation ("Brighton")
and Inter-Community Telephone Company ("Inter-Community") (collec-
tively, "Lynch and its affiliates"), engage in various aspects of
the securities business, primarily as investment adviser to various
institutional and individual clients, including registered
investment companies and pension plans, as broker/dealer and as
general partner of various private investment partnerships.
Certain of these entities may also make investments for their own
accounts.
          The foregoing persons in the aggregate often own
beneficially more than 5% of a class of equity securities of a
particular issuer.  Although several of the foregoing persons are
treated as institutional investors for purposes of reporting their
beneficial ownership on the short-form Schedule 13G, the holdings
of those who do not qualify as institutional investors may exceed
the 1% threshold presented for filing on Schedule 13G or implemen-
tation of their investment philosophy may from time to time require
action which could be viewed as not completely passive.  In order
to avoid any question as to whether their beneficial ownership is
being reported on the proper form and in order to provide greater
investment flexibility and administrative uniformity, these persons
have decided to file their beneficial ownership reports on the more
detailed Schedule 13D form rather than on the short-form Schedule
13G and thereby to provide more expansive disclosure than may be
necessary.
          (a), (b) and (c) - This statement is being filed by one
or more of the following persons: Gabelli Group Capital Partners,
Inc. ("Gabelli Partners"), Gabelli Asset Management Inc.
("GAMI") , Gabelli Funds, LLC ("Gabelli Funds"),  GAMCO Investors,
Inc. ("GAMCO"), Gabelli Securities, Inc. ("GSI"), Gabelli &
Company, Inc. ("Gabelli & Company"), Gabelli Performance Partner-
ship L.P. ("GPP"), GLI, Inc. ("GLI"), Gabelli Associates Fund
("Gabelli Associates"), Gabelli Associates Limited ("GAL"), Gabelli
& Company, Inc. Profit Sharing Plan (the "Plan"), Gabelli Interna-
tional Limited ("GIL"), Gabelli International II Limited ("GIL
II"), Gabelli International Gold Fund Limited ("GIGFL"), ALCE
Partners, L.P. ("ALCE"), Gabelli Multimedia Partners, L.P.
("Multimedia Partners"), MJG Associates, Inc. ("MJG Associates"),
Gemini Capital Management Ltd. ("Gemini"), Gabelli Fund, LDC
("LDC"), Gabelli Foundation, Inc. ("Foundation"), Gabelli Global
Partners, Ltd. ("GGP Ltd."), Gabelli Global Partners, L.P. ("GGP
L.P."), Mario Gabelli, Marc Gabelli, Lynch, Spinnaker, Western New
Mexico, Entoleter, Lynch Telecom, Lynch Telephone and Inter-
Community. Those of the foregoing persons signing this Schedule 13D
are hereafter referred to as the "Reporting Persons".
          Gabelli Partners makes investments for its own account
and is the parent company of GAMI. GAMI, a public company listed on
the New York Stock Exchange, is the parent company for a variety of
companies engaged in the securities business, each of which is
named below.
          GAMCO, a wholly-owned subsidiary of GAMI, is an invest-
ment adviser registered under the Investment Advisers Act of 1940,
as amended ("Advisers Act").  GAMCO is an investment manager
providing discretionary managed account services for employee
benefit plans, private investors, endowments, foundations and
others.
          GSI, a majority-owned subsidiary of GAMI, acts as a
general partner or investment manager to limited partnerships and
offshore investment companies and as a part of its business
regularly purchases and sells securities for its own account.  It
is the immediate parent of Gabelli & Company.
          Gabelli & Company, a wholly-owned subsidiary of GSI, is
a broker-dealer registered under the Securities Exchange Act of
1934, as amended ("l934 Act"), which as a part of its business
regularly purchases and sells securities for its own account.
          GLI, wholly-owned subsidiary of GSI, is a corporation
which currently has no active operations.
          Gabelli Associates is a New York limited partnership
whose primary business purpose is risk arbitrage investments.  GSI
and Mario Gabelli are the general partners of Gabelli Associates.
          GAL is a corporation whose primary business purpose is
risk arbitrage investments.  Shares of GAL's common stock are
offered to persons who are neither citizens nor residents of the
United States and may be offered to a limited number of U.S.
investors.  GSI is the investment manager of GAL.
          Gabelli Funds, a wholly-owned subsidiary of GAMI, is a
limited liability company. Gabelli Funds is an investment adviser
registered under the Advisers Act which presently provides
discretionary advisory services to The Gabelli Equity Trust Inc.,
The Gabelli Asset Fund, The Gabelli Growth Fund, The Gabelli
Convertible Securities Fund, Inc., The Gabelli Value Fund Inc., The
Gabelli Small Cap Growth Fund, The Gabelli Equity Income Fund, The
Gabelli ABC Fund, The Gabelli Global Telecommunications Fund,
Gabelli Gold Fund, Inc., The Gabelli Global Multimedia Trust Inc.,
The Gabelli Global Convertible Securities Fund, Gabelli Capital
Asset Fund, Gabelli International Growth Fund, Inc., The Gabelli
Global Growth Fund, The Gabelli Utility Trust, The Gabelli Global
Opportunity Fund, The Gabelli Utilities Fund and The Gabelli Blue
Chip Value Fund (collectively, the "Funds"), which are registered
investment companies.
          Gabelli Advisers, Inc. ("Gabelli Advisers"), a subsidiary
of GAMI, is an investment adviser which provides discretionary
advisory services to The Gabelli Westwood Mighty Mitessm Fund.
          The Plan, a qualified employee profit sharing plan,
covers substantially all employees of GAMI and its affiliates.
          GPP is a limited partnership whose primary business
purpose is investing in securities.  MJG Associates is the general
partner of GPP, and Mario Gabelli is a portfolio manager for GPP.
          GIL is a corporation whose primary business purpose is
investing in a portfolio of equity securities and securities
convertible into, or exchangeable for, equity securities in order
to achieve its investment objective of significant long-term growth
of capital.  Shares of GIL's common stock are offered to persons
who are neither citizens nor residents of the United States and may
be offered to a limited number of U.S. investors.  MJG Associates
is the Investment Manager of GIL.  Mario Gabelli is a portfolio
manager for GIL and Chairman of the Board of Directors of GIL.
          GIL II is a corporation whose business purpose is
investing primarily in a portfolio of equity securities and
securities convertible into, or exchangeable for, equity securities
in order to achieve its investment objective of significant
long-term growth of capital.  Shares of GIL II's common stock are
offered to persons who are neither citizens nor residents of the
United States and may be offered to a limited number of U.S.
investors.   MJG Associates is the Investment Manager of GIL II.
Mario Gabelli is a portfolio manager and Chairman of the Board of
Directors of GIL II.
       ALCE is an investment limited partnership that seeks long-
term capital appreciation primarily through investments in public
and private equity securities.  GSI is a general partner of ALCE.
       Multimedia Partners is an investment limited partnership
whose objective is to provide long-term capital appreciation by
investing primarily in public and private multimedia communications
companies.  GSI is a general partner of Multimedia Partners.
       GGP L.P. is a partnership whose primary business purpose is
investing in Securities on a global basis.  Gabelli Securities,
Inc. and Gemini Capital Management, LLC are the general partners of
GGP L.P. and Marc Gabelli is a portfolio manager for GGP L.P.
       GGP Ltd. is a corporation whose primary business purpose is
investing in Securities on a global basis.  Gabelli Securities,
International Limited and Gemini Capital Management, LLC are the
investment advisors of GGP Ltd. and Marc Gabelli is the portfolio
manager for GGP Ltd.
       LDC is a corporation whose business purpose is investing
primarily in a portfolio of equity securities and securities
convertible into, or exchangeable for, equity securities in order
to achieve its investment objective of significant long-term growth
of capital.  Interests are offered to insurance companies which do
not conduct any business in the United States and which are
licensed where they do business.  MJG Associates is the Investment
Manager of LDC.  Mario Gabelli is a portfolio manager for LDC.
       MJG Associates provides advisory services to private
investment partnerships and offshore funds.  Mario  Gabelli is the
sole shareholder, director and employee of MJG Associates.
       Gemini is a corporation whose primary business purpose is to
provide advisory services to offshore funds.  Marc Gabelli is the
President and Chief Investment Officer of Gemini.
       The Foundation is a private foundation. Mario Gabelli is the
President, a Trustee and the Investment Manager of the Foundation.
       Lynch is a public company traded on the American Stock
Exchange engaged in manufacting. Spinnaker, a subsidiary of Lynch,
is also a public company and its stock is traded on the NASDAQ
National Market.  Spinnaker is a manufacturing firm with major
subsidiaries in specialty adhesive-backed
materials business.  Interactive is a public company listed on the
American Stock Exchange. It is a holding company whose principal
subsidiary is Brighton. Brighton is a 100% owned subsidiary of
Interactive. Brighton is a holding company with subsidiaries in
multimedia and services businesses. Western New Mexico, a subsid-
iary of Brighton, provides telephone services in a service area in
Southwestern New Mexico. Inter-Community, which is also a subsid-
iary of Brighton, provides local telephone services in an area 40
miles west of Fargo, North Dakota. Lynch and Interactive actively
pursue new business ventures and acquisitions.
          Mario J. Gabelli is a director, Chairman of the Board and
Chief Executive Officer and a substantial shareholder of Lynch and
Interactive.
          Mario Gabelli is the majority stockholder and Chairman of
the Board of Directors and Chief Executive Officer of Gabelli
Partners and GAMI, and the Chief Investment Officer for each of the
Reporting Persons which are entities other than Gemini.  Gabelli
Partners is the majority shareholder of GAMI. GAMI, in turn, is the
sole stockholder of GAMCO.  GAMI is also the majority stockholder
of GSI and the largest shareholder of Gabelli Advisers.  Gabelli &
Company is a wholly-owned subsidiary of GSI.  GLI is a wholly-owned
subsidiary of GSI.  Marc Gabelli is the majority stockholder of
Gemini.
          The Reporting Persons do not admit that they constitute
a group.
          Gabelli Partners, GAMI, GAMCO, Gabelli & Company and GLI
are New York corporations and GSI and Gabelli Advisers are Delaware
corporations, each having its principal business office at One
Corporate Center, Rye, New York 10580.  Gabelli Funds is a New York
limited liability company having its principal business office at
One Corporate Center, Rye, New York 10580. GPP is a New York
limited partnership having its principal business office at 401
Theodore Fremd Ave., Rye, New York 10580.  MJG Associates is a
Connecticut corporation having its principal business office at 401
Theodore Fremd Ave., Rye, New York 10580. Gabelli Associates is a
New York limited partnership having its principal business office
at One Corporate Center, Rye, New York 10580. Alce and Multimedia
Partners and GGP L.P. are Delaware limited partnerships each having
its principal business office at One Corporate Center, Rye, New
York 10580. GAL and GIL are corporations organized under the laws
of the British Virgin Islands, and GGP Ltd. is a corporation
organized under the laws of the Cayman Islands, each having its
principal business office at c/o MeesPierson (Cayman) Limited,
British American Centre, Dr. Roy's Drive-Phase 3, George Town,
Grand Cayman, British West Indies.  GIL II is a corporation
organized under the laws of the British Virgin Islands having its
principal business office at c/o Coutts & Company (Cayman) Limited,
West Bay Road, Grand Cayman, British West Indies.  Gemini is a
Bermuda corporation having its principal business office at c/o
Appleby, Spurling & Kempe, Cedar House, 41 Cedar Avenue, Hamilton
HM12, Bermuda.  LDC is a corporation organized under the laws of
the British Virgin Islands having its pricipal business office at
c/o Tremont (Bermuda) Limited, Tremont House, 4 Park Road, Hamilton
HM II, Bermuda. The Foundation is a private foundation having its
principal offices at 165 West Liberty Street, Reno, Nevada 89501.
Lynch is an Indiana corporation having its principal business
office at 401 Theodore Fremd Avenue, Rye, NY 10580.  Spinnaker is
a Delaware corporation having its principal business office at 251
Welton Street, Hamden, CT 06511.  Lynch and its affiliates make
investments in marketable securities to preserve capital and
maintain liquidity for financing their business activities and
acquisitions (not in the case of Western New Mexico) and are not
engaged in the business of investing, reinvesting, or trading in
securities.  Interactive and Brighton are Delaware corporations
each having its principal place of business at 401 Theodore Fremd
Avenue, Rye, NY 10580.
          For information required by instruction C to Schedule 13D
with respect to the executive officers and directors of the
foregoing entities and other related persons (collectively,
"Covered Persons"), reference is made to Schedule I annexed hereto
and incorporated herein by reference.
     (f) - Reference is made to Schedule I hereto.

Item 3.   Source and Amount of Funds or Other Consideration
          Item 3 to Schedule 13D is amended, in pertinent part, as
follows:
          All Reporting Persons used an aggregate of approximately
$5,267,376 to purchase the additional Securities reported as
beneficially owned in Item 5 below since the most recent filing on
Schedule 13D. GAMCO and Gabelli Funds used approximately $4,262,114
and $1,005,262, respectively, of funds that were provided through
the accounts of certain of their investment advisory clients (and,
in the case of some of such accounts at GAMCO, may be through
borrowings from client margin accounts) in order to purchase the
additional Securities for such clients.




Item 5.   Interest In Securities Of The Issuer
          Item 5 to Schedule 13D is amended, in pertinent part, as
follows:
          (a)  The aggregate number and percentage of Securities to
which this Schedule 13D relates is 3,041,550 shares, representing
24.15% of the 12,595,996 shares outstanding as reported in the
Issuer's most recently filed Form 10-Q for the quarter ended
September 30, 1999.  The Reporting Persons beneficially own those
Securities as follows:

                          Shares of                  %of
                          Common                     Class of
Name                      Stock                      Stock

Gabelli Funds:
  As Principal                    0                    0.00%
  As Agent                  497,000                    3.95%

GAMCO:
  As Principal                    0                    0.00%
  As Agent                2,529,350                   20.08%

Gabelli Partners              2,200                    0.02%

Marc Gabelli                      0                    0.00%

Mario J. Gabelli             13,000                    0.10%

          Mario Gabelli is deemed to have beneficial ownership of
the Securities beneficially owned by each of the foregoing persons
other than Marc Gabelli. Gabelli Partners and GAMI are deemed to
have beneficial ownership of the Securities beneficially owned by
each of the foregoing persons other than Mario Gabelli and Marc
Gabelli.
          (b) Each of the Reporting Persons and Covered Persons has
the sole power to vote or direct the vote and sole power to dispose
or to direct the disposition of the Securities reported for it,
either for its own benefit or for the benefit of its investment
clients or its partners, as the case may be, except that (i) GAMCO
does not have authority to vote 40,000 of the reported shares, (ii)
Gabelli Funds has sole dispositive and voting power with respect to
the shares of the Issuer held by the Funds, so long as the
aggregate voting interest of all joint filers does not exceed 25%
of their total voting interest in the Issuer and in that event, the
Proxy Voting Committee of each such Fund shall respectively vote
that Fund's shares, (iii) at any time, the Proxy Voting Committee
of each such Fund may take and exercise in its sole discretion the
entire voting power with respect to the shares held by such Fund
under special circumstances such as regulatory consideration, (iv)
the power of Mario Gabelli, Marc Gabelli, GAMI and Gabelli Partners
is indirect with respect to Securities beneficially owned directly
by other Reporting Persons.
          (c) Information with respect to all transactions in the
Securities which were effected during the past sixty days or since
the most recent filing on Schedule 13D, whichever is less, by each
of the Reporting Persons and Covered Persons is set forth on
Schedule II annexed hereto and incorporated herein by reference.

<PAGE>
Signature
After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this statement
is true, complete and correct.
Dated:    January 31, 2000
                                   GABELLI GROUP CAPITAL PARTNERS,
                                   INC.


                                   By:________________________
                                      James E. McKee
                                      General Counsel


                                   GAMCO INVESTORS, INC.


                                   By:_________________________
                                      James E. McKee
                                      General Counsel

                                   GABELLI FUNDS, LLC.


                                   By:_________________________
                                      James E. McKee
                                      Secretary

                                  GABELLI ASSET MANAGEMENT INC.



                                   By:__________________________
                                      James E. McKee
                                      General Counsel


                                   MARIO J. GABELLI


                                   By:________________________
                                      James E. McKee
                                      Attorney-in-Fact





                                   MARC J. GABELLI


                                   By:__________________________
                                      James E. McKee
                                      Attorney-in-Fact















































Schedule I


              Information with Respect to Executive
            Officers and Directors of the Undersigned

          Schedule I to Schedule 13D is amended, in pertinent part, as
follows:
          The following sets forth as to each of the executive offi-
cers and directors of the undersigned: his name; his business address;
and his present principal occupation or employment and the name,
principal business and address of any corporation or other organiza-
tion in which such employment is conducted.  Unless otherwise speci-
fied, the principal employer of each such individual is Gabelli Group
Capital Partners, Inc., Gabelli Asset Management Inc., Gabelli Funds,
LLC, Gabelli & Company, Inc., or GAMCO Investors, Inc., the business
address of each of which is One Corporate Center, Rye, New York 10580,
and each such individual identified below is a citizen of the United
States.  To the knowledge of the undersigned, during the last five
years, no such person has been convicted in a criminal proceeding
(excluding traffic violations or similar misdemeanors), and no such
person was a party to a civil proceeding of a judicial or administra-
tive body of competent jurisdiction as a result of which he was or is
subject to a judgment, decree or final order enjoining future viola-
tions of, or prohibiting or mandating activities subject to, federal
or state securities law or finding any violation with respect to such
laws except as reported in Item 2(d) of this Schedule 13D.


<PAGE>
Gabelli Group Capital Partners, Inc.

Directors:

     Mario J. Gabelli*

     Richard B. Black              President and Director of
                                   Oak Technology, Inc.;
                                   Chairman ECRM; Director
                                   of The Morgan Group, Inc.;
                                   General Partner of KBA Part-
                                   ners, Parker Plaza
                                   400 Kelby Street,
                                   Fort Lee, NJ 07029

     Charles C. Baum               Chairman, Director and Chief Execu-
                                   tive Officer of The Morgan Group,
                                   Inc.; Secretary & Treasurer
                                   United Holdings
                                   2545 Wilkens Avenue
                                   Baltimore, MD  21223


     Dr. Eamon M. Kelly            Professor
                                   Payson Center for International
                                   Development Technology Transfer
                                   Tulane University
                                   300 Hebert Hall
                                   6823 St. Charles Avenue
                                   New Orleans, LA  70118

     Marc J. Gabelli               Managing Director

     Matthew R. Gabelli            Vice President-Trading
                                   Gabelli & Company
                                   One Corporate Center
                                   Rye, New York 10580
Officers:

     Mario J. Gabelli              Chairman, Chief Executive
                                   Officer and Chief Investment
                                   Officer

     Stephen G. Bondi              Executive Vice President-Finance
                                   and Administration
_____________________

     *    Mr. Gabelli is the Chief Executive Officer and Chief Invest-
ment Officer of Gabelli Group Capital Partners, Inc., Gabelli Asset
Management Inc. and GAMCO Investors, Inc.; Director/Trustee of all
registered investment companies advised by Gabelli Funds, LLC; Chairman
and Chief Executive Officer of Lynch Corporation; Director of East/West
Communications, Inc. 
<PAGE>
Robert S. ZuccaroVice President and Chief Financial
                                   Officer

     James E. McKee                Vice President, General
                                   Counsel and Secretary

Gabelli Asset Management Inc.

Directors:

     Mario J. Gabelli              See above


     John C. Ferrara               Chief Financial Officer
                                   Space.Com
                                   120 West 45th Street
                                   New York, New York 10036
     Dr. Eamon M. Kelly            See above

     Karl Otto Pohl (1)            Sal Oppenheim Jr. & Cie
                                   Bockenheimer Landstrasse 20
                                   D-6000 FRANKFURT AM MAIN
                                   Germany

Officers:

     Mario J. Gabelli              Chairman, Chief Executive
                                   Officer and Chief Investment
                                   Officer

     Stephen G. Bondi              Executive Vice President-Finance
                                   and Adminstration

     Robert S. Zuccaro             Vice President and Chief Financial
                                   Officer

     James E. McKee                Vice President, General
                                   Counsel and Secretary

GAMCO Investors, Inc.

Directors:

     Mario J. Gabelli
     Douglas R. Jamieson
     Joseph R. Rindler, Jr.
     Regina M. Pitaro
     F. William Scholz, II

Officers:

     Mario J. Gabelli              Chief Executive Officer
                                   and Chief Investment Officer

     Joseph R. Rindler, Jr.        Chairman

     Douglas R. Jamieson           Executive Vice President and
                                   Chief Operating Officer

     Robert S. Zuccaro             Vice President and Chief
                                   Financial Officer

     Stephen G. Bondi              Vice President

     James E. McKee                Vice President, General Counsel
                                   and Secretary

     Peter D. Goldstein            Deputy General Counsel and
                                   Assistant Secretary

Gabelli Funds, LLC

Officers:

     Mario J. Gabelli              Chief Investment Officer

     Bruce N. Alpert               Executive Vice President and
                                   Chief Operating Officer

     Gus Coutsouros                Vice President and Chief Financial
                                   Officer

     Stephen G. Bondi              Vice President

     James E. McKee                Secretary


Gabelli Advisers, Inc.

Directors:

     Bruce N. Alpert
     John D. Gabelli
     Joseph R. Rindler, Jr.

Officers:

     Bruce N. Alpert               Chief Operating Officer

     Stephen G. Bondi              Vice President

     James E. McKee                Secretary

Gabelli Securities, Inc.

Directors:

     Robert W. Blake               President of W.R. Blake
                                   & Sons, Inc.
                                   196-20 Northern Boulevard
                                   Flushing, NY  11358



     Douglas G. DeVivo             General Partner of ALCE
                                   Partners, L.P.
                                   One First Street, Suite 16
                                   Los Altos, CA  94022

     Joseph R. Rindler, Jr.        See above

Officers:

     Stephen G. Bondi              Vice President

     Robert S. Zuccaro             Vice President-Finance

     James E. McKee                Secretary

Gabelli & Company, Inc.

Directors:

     James G. Webster, III         Chairman

     Stephen G. Bondi              See above

     Donald C. Jenkins             Director of Research

Officers:

     James G. Webster, III         Chairman

     Stephen G. Bondi              Vice President

     Bruce N. Alpert               Vice President-Mutual Funds

     Walter K. Walsh               Compliance Officer

     James E. McKee                Secretary


GLI, Inc.
Directors:

     Mario J. Gabelli              See above-Gabelli Group Capital
                                   Partners, Inc.
Officers:

     Mario J. Gabelli              Chairman and Chief Investment
                                   Officer

     Stephen G. Bondi              Vice President

Gabelli Associates Limited

Directors:

     Mario J. Gabelli              See above-Gabelli Group Capital
                                   Partners, Inc.


     Roger Hanson (2)              MeesPierson  (Cayman)
                                   Limited
                                   British American Centre
                                   Dr. Roy's Drive- Phase 3
                                   Georgetown, Grand Cayman
                                   Cayman Islands, British
                                   WestIndies

Officers:

     Mario J. Gabelli              Chief Investment Officer

     Kevin Bromley (2)             Vice President, Treasurer and
                                   Assistant Secretary

     Sandra Wright (2)             Secretary and Assistant Treasurer


Gabelli International Limited

Directors:

     Mario J. Gabelli              See above-Gabelli Group Capital
                                   Partners, Inc.

     Roger Hanson (2)              MeesPierson  (Cayman)
                                   Limited
                                   British American Centre
                                   Dr. Roy's Drive- Phase 3
                                   Georgetown, Grand Cayman
                                   Cayman Islands, British West Indies
Officers:

     Kevin Bromley (2)             Vice President, Treasurer, and
                                   Assistant Secretary
                                   MeesPierson (Cayman) Limited
                                   British American Centre
                                   Dr. Roy's Drive- Phase 3
                                   Georgetown, Grand Cayman
                                   Cayman Islands, British West Indies

     Sandra Wright (2)             Secretary and Assistant Treasurer
                                   Assistant Secretary
                                   MeesPierson (Cayman) Limited
                                   British American Centre
                                   Dr. Roy's Drive- Phase 3
                                   Georgetown, Grand Cayman
                                   Cayman Islands, British West Indies

Gemini Capitial Management Ltd.

Directors:

     Marc J. Gabelli               See above-Gabelli Group Capital
                                   Partners, Inc.


     Stephen G. Bondi              See Above-Gabelli Group Capital
                                   Partners, Inc.


     Michael A. Salatto            Controller, Gabelli Securities,
                                   Inc.

     Michael J. Burns (3)          Appleby, Spurling & Kempe
                                   Cedar House
                                   41 Cedar Avenue
                                   Hamilton, HM12
                                   Bermuda

     Douglas Molyneux (3)          Appleby, Spurling & Kempe
                                   Cedar House
                                   41 Cedar Avenue
                                   Hamilton, HM12
                                   Bermuda

Gabelli Fund, LDC

Directors:

     Johann S. Wong (4)            c/o Tremont (Bermuda)
                                   Limited
                                   Tremont House
                                   4 Park Road
                                   Hamilton HM 11, Bermuda

     Peter D. Anderson (5)         Givens Hall Bank & Trust
                                   Genesis Building
                                   P.O. Box 2097
                                   Grand Cayman, Cayman Islands
                                   BWI3459498141

     Karl Otto Pohl                See above

     Anthonie C. van Ekris         See below


Gabelli Global Partners, Ltd.

Directors:

     Stephen G. Bondi              See above

     Marc J. Gabelli               See above

     Patrick Salvisberg (6)        Vice President
                                   Institutional Capital Markets
                                   Bear Stearns International Ltd.

     Marco Sampelligrini (7)       Banco Intesa
                                   Milan, Italy

     Antonie Van Ekris             See below


Lynch Corporation
401 Theodore Fremd Avenue
Rye, NY  10580

Directors:


     Mario J. Gabelli              See above-Gabelli Group Capital
                                   Partners, Inc.

     E. Val Cerutti                Business Consultant
                                   Cerutti Consultants
                                   227 McLain Street
                                   Mount Kisco, NY   10540

     Ralph R. Papitto              Chairman of the Board
                                   AFC Cable Systems, Inc.
                                   50 Kennedy Plaza
                                   Suite 1250
                                   Providence, RI  02903

     Avrum Gray                    GBar Limited Partnership
                                   440 South LaSalle, Suite 2900
                                   Chicago, IL 60605

     Louis A. Guzzetti             President and Chief Executive
                                   Officer

Officers:

     Mario J. Gabelli              Chairman


     Louis A. Guzzetti             President and Chief Executive
                                   Officer

     George E. Fuehrer             Vice President-Business Development

     Roger T. Dexter               Controller

     Robert A. Hurwich             Vice President-Administration,
                                   Secretary and General Counsel


Lynch Interactive Corporation
401 Theodore Fremd Avenue
Rye, NY  10580

Directors:

     Paul J. Evanson               President
                                   Florida Light & Power Co.
                                   P.O. Box 14000
                                   700 Universe Blvd.
                                   Juno Beach, FL 33408

     Mario J. Gabelli              See above-Gabelli Group Capital
                                   Partners, Inc.

     Ralph R. Papitto              Chairman of the Board
                                   AFC Cable Systems, Inc.
                                   50 Kennedy Plaza
                                   Suite 1250
                                   Providence, RI  02903

     Salvatore Muoio               Principal
                                   S. Muoio & Co., LLC
                                   Suite 406
                                   509 Madison Ave.
                                   New York, NY 10022

     John C. Ferrara               See above

     David C. Mitchell             Business Consultant
                                   c/o Lynch Corporation
                                   401 Theodore Fremd Ave.
                                   Rye, NY 10580

Officers:

     Mario J. Gabelli              Chairman and Chief Executive
                                   Officer

     Robert E. Dolan               Chief Financial Officer

     Robert A. Hurwich             Vice President-Administration,
                                   Secretary and General Counsel


Brighton Communications Corporation
401 Theodore Fremd Ave
Rye, NY 105820

Directors:

     Robert E. Dolan               See above-Lynch Interactive
                                   Corporation

     Robert A. Hurwich             See above-Lynch Interactive
                                   Corporation
Officers:

     Robert E. Dolan               President, Controller, Tresurer
                                   and Assistant Secretary

     Robert A. Hurwich             Secreatry and Assistant Tresurer


Spinnaker Industries, Inc.
600 N. Pearl Street
uite 2160
Dallas, TX  75201

Directors:

     Joseph P. Rhein               5003 Central Avenue
                                   Ocean City, NJ  08226

     Richard J. Boyle              The Boyle Group, Inc.
                                   6110 Blue Circle Drive
                                   Suite 250
                                   Minnetonka, MN  55343


     Ned N. Fleming, III           Boyle, Fleming,
                                   & Co., Inc.
                                   600 N. Pearl Street
                                   Suite 2160
                                   Dallas, TX  75201

     Robert E. Dolan               See above Lynch Corporation

     Anthonie C. van Ekris         Chairman and Chief
                                   Executive Officer
                                   Balmac International, Inc.
                                   61 Broadway
                                   Suite 1900
                                   New York, NY  10006

     Mario J. Gabelli              See above-Gabelli Group Capital
                                   Partners, Inc.

     E. Val Cerutti                See above-Lynch Corporation

     Ralph R. Papitto              See above-Lynch Corporation

Officers:

     Ned N. Fleming, III           President and Chief Operating
                                   Officer

     Richard J. Boyle              Chairman and Chief Executive
                                   Officer

     Robert A. Hurwich             Secretary

     Mark A. Matteson              Vice President, Corporate
                                   Development

     Craig Jennings                Vice President, Finance and
                                   Treasurer

Entoleter, Inc.
251 Welton Street
Hamden, CT  06517

Directors:

     Ned N. Fleming, III           See above-Spinnaker

     Mark A. Matteson              See above-Spinnaker

     Robert P. Wentzel             See above Entoleter


     James Fleming                 230 Saugatuck Avenue, Unit 8
                                   Westport, CT  06880
Officers:

     Robert P. Wentzel             President

     Mark R. Matteson              Vice President

     Charles DeMarino              Controller & Secretary


Western New Mexico Telephone Company
314 Yankee Street
Silver City, NM  88062

Directors:

     Jack W. Keen                  Chairman and President

     Dr. Brian E. Gordon           Vice President

     Mary Beth Baxter              Secretary & Treasurer

     John Clay Keen                Route 6
                                   Box 270
                                   Greenville, TX 75401

     Robert E. Dolan               See above-Lynch Corporation

     Robert A. Hurwich             See above-Lynch Corporation

     Carmine Ceraolo               See above-Lynch Corporation

     Mary J. Carroll               See above-Lynch Corporation

     Eugene P. Connell             See above-Lynch Corporation

Officers:

     Jack W. Keen                  Chairman and President

     Dr. Brian E. Gordon           Vice President

     Charles M. Baxter             Sr. Vice President-Operations

     Mary Beth Baxter              Secretary & Treasurer

     Robert A. Hurwich             Assistant Treasurer and Assistant
                                   Secretary

Inter-Community Telephone Company, L.L.C.
P.O. Box A
Nome, ND  58062

Managers:



     Carole Rau                    Executive Assistant
                                   Lynch Corporation
                                   401 Theodore Fremd Ave.
                                   Rye, NY 10580

     Mary J. Carroll               See above-Lynch Corporation

     Robert E. Dolan               See above-Lynch Corporation

     Robert A. Hurwich             See above-Lynch Corporation

     Carmine Ceraolo               Assistant Controller
                                   Lynch Corporation
                                   401 Theodore Fremd Ave
                                   Rye, NY 10580

     Robert Snyder                 200 Broadway South
                                   Buffalo, ND  58011

     Keith S. Andersen             See above-Inter-Community Telephone
                                   Company

     Robert Reff                   See above-Inter-Community Telephone
                                   Company

     Jack Bently                   1210 E. Washington Ave
                                   Gilbert, AZ 85234

Officers:

     Robert Snyder                 President

     Keith S. Andersen             Secretary and Treasurer

     Robert A. Hurwich             Assistant Secretary


Lynch Telephone Corporation
401 Theodore Fremd Avenue
Rye, NY 10580

Directors:

     Robert E. Dolan               Controller

     Jack W. Keen                  President

     Robert A. Hurwich             See above-Lynch Corporation

Officers:

     Jack W. Keen                  President

     Robert A. Hurwich             Secretary

     Mary Beth Baxter              Treasurer and
                                   Assistant Secretary

     Robert E. Dolan               Vice President and Controller


     (1) Citizen of Germany
     (2) Citizen of the Cayman Islands
     (3) Citizen of Bermuda
     (4) Citizen of Bermuda and Canada
     (5) Citizen of the UK
     (6) Citizen of Switzerland
     (7) Citizen of Italy








                                              SCHEDULE II

                                      INFORMATION WITH RESPECT TO
                           TRANSACTIONS EFFECTED DURING THE PAST SIXTY DAYS OR
                           SINCE THE MOST RECENT FILING ON SCHEDULE 13D (1)

                                             SHARES PURCHASED        AVERAGE
                                  DATE            SOLD(-)             PRICE(2)

           COMMON STOCK-SPS TECHNOLOGIES

          GABELLI INTERNATIONAL LTD
                                 1/11/00              400-           32.7500
                                 1/10/00              100-           33.6250
                                 1/05/00              500            32.3125
          GAMCO INVESTORS, INC.
                                 1/27/00            2,300            34.1793
                                 1/27/00            2,200            34.0000
                                 1/26/00            1,000            34.0000
                                 1/26/00            1,000            33.7125
                                 1/26/00            2,000            33.4688
                                 1/26/00            2,000            34.0000
                                 1/25/00            3,000            33.2271
                                 1/24/00            3,500            33.9375
                                 1/21/00            1,500            34.5625
                                 1/21/00              200            34.6250
                                 1/21/00              500            34.5586
                                 1/21/00           19,100            34.5586
                                 1/21/00              500-           34.5586
                                 1/20/00              500-           34.0000
                                 1/20/00            1,000-           34.5000
                                 1/20/00            2,000            34.0000
                                 1/19/00            1,500            34.2083
                                 1/18/00            2,000-           34.0530
                                 1/18/00            1,400            33.9375
                                 1/18/00              400            34.1250
                                 1/18/00            4,075            33.9835
                                 1/14/00            1,000            33.5000
                                 1/14/00            1,200            33.5781
                                 1/13/00              600            33.0000
                                 1/12/00              800            33.1875
                                 1/12/00              500            32.8750
                                 1/12/00            2,500            32.9050
                                 1/12/00            1,000            33.0000
                                 1/12/00            6,000            32.8856
                                 1/11/00            5,500            33.0938
                                 1/11/00            2,500            33.2425
                                 1/07/00            1,000            33.3563
                                 1/07/00            2,000            33.2063










                                               SCHEDULE II

                                      INFORMATION WITH RESPECT TO
                           TRANSACTIONS EFFECTED DURING THE PAST SIXTY DAYS OR
                           SINCE THE MOST RECENT FILING ON SCHEDULE 13D (1)

                                             SHARES PURCHASED        AVERAGE
                                  DATE            SOLD(-)             PRICE(2)

           COMMON STOCK-SPS TECHNOLOGIES

          GAMCO INVESTORS, INC.
                                 1/06/00            2,300            31.8668
                                 1/06/00              300            32.1250
                                 1/05/00            2,425            32.2332
                                 1/04/00              500-           32.5000
                                 1/04/00            3,000            32.5000
                                 1/04/00            1,200            31.6250
                                 1/03/00              400            32.5625
                                 1/03/00              300            32.5833
                                 1/03/00            6,500            32.9942
                                 1/03/00            3,000            32.9708
                                 1/03/00            1,700            32.6250
                                12/31/99            2,700            31.8789
                                12/31/99            7,000            31.6652
                                12/31/99            1,000            32.0375
                                12/31/99           12,100-           31.6694
                                12/30/99           11,825-           32.1510
                                12/30/99              500            32.1250
                                12/29/99            3,700-           31.9476
                                12/29/99            1,000            32.2500
                                12/28/99            2,100-           30.2946
                                12/27/99            1,600            30.5625
                                12/27/99           12,000-           30.4135
                                12/27/99            1,300-           30.3750
                                12/23/99              700-           30.0000
                                12/23/99            8,040-           30.2836
                                12/23/99              300            30.6250
                                12/23/99              500            30.5000
                                12/22/99            2,000            30.4726























                                                SCHEDULE II

                                      INFORMATION WITH RESPECT TO
                           TRANSACTIONS EFFECTED DURING THE PAST SIXTY DAYS OR
                           SINCE THE MOST RECENT FILING ON SCHEDULE 13D (1)

                                             SHARES PURCHASED        AVERAGE
                                  DATE            SOLD(-)             PRICE(2)

           COMMON STOCK-SPS TECHNOLOGIES

           GAMCO INVESTORS, INC.

                                12/22/99              500            30.2500
                                12/22/99            2,100-           30.2976
                                12/22/99            1,400            30.1875
                                12/22/99            1,000            30.5750
                                12/22/99           11,700            30.4726
                                12/21/99              600            30.1250
                                12/21/99            8,100-           30.2847
                                12/21/99            2,400-           30.4375
                                12/21/99            1,421-           30.5000
                                12/20/99              200            29.8750
                                12/20/99            1,600-           30.0625
                                12/17/99            2,000-           30.0000
                                12/17/99            1,200-           29.9896
                                12/17/99            1,000-           29.9375
                                12/16/99            1,400-           30.1250
                                12/16/99              850            30.0699
                                12/15/99            4,000            30.7958
                                12/15/99            2,000            30.7958
                                12/15/99           14,200-           30.0709
                                12/14/99            4,749-           30.0625
                                12/14/99            1,700-           30.1139
                                12/14/99            2,400-           30.0885
                                12/14/99              500            30.1250
                                12/13/99            1,100            30.7500
                                12/13/99            1,000            30.5000
                                12/10/99            1,700-           30.5772
                                12/10/99            1,000-           30.7500
                                12/09/99            1,500            30.9750
                                12/08/99              500-           30.2500
                                12/07/99              200-           30.3750
                                12/07/99              300-           30.1250
                                12/07/99            8,500-           30.2544
                                12/07/99            4,500            30.3472
                                12/06/99            2,200            31.5170
                                12/06/99            1,000-           31.3250















                                            SCHEDULE II

                                      INFORMATION WITH RESPECT TO
                           TRANSACTIONS EFFECTED DURING THE PAST SIXTY DAYS OR
                           SINCE THE MOST RECENT FILING ON SCHEDULE 13D (1)

                                             SHARES PURCHASED        AVERAGE
                                  DATE            SOLD(-)             PRICE(2)

           COMMON STOCK-SPS TECHNOLOGIES

         GAMCO INVESTORS, INC.
                                12/06/99              500            30.9375
                                12/06/99              800-           31.2500
                                12/03/99            1,200-           30.7188
                                12/02/99            1,500-           30.5250
                                11/30/99            2,000            32.7020
                                11/30/99           11,800            32.7020
                                11/30/99              300-           32.1250
                                11/29/99              500            32.0000
                                11/29/99            4,000-           32.0000
                                11/29/99              500            31.8750
                                11/29/99              600-           31.7500
                                11/29/99           17,200            31.8420
                                11/24/99            5,700            30.9145
                                11/24/99            1,000            30.5000
                                11/23/99            4,200            30.7768
                                11/23/99              300            30.6875
                                11/22/99            4,000-           31.0531
          GABELLI FUNDS, LLC.
               THE GABELLI EQUITY TRUST,INC.
                                11/24/99            2,000            31.4000
               THE GABELLI ASSET FUND
                                 1/11/00            1,300            33.0500
                                 1/07/00              300            33.0083
                                 1/06/00            1,400            32.1482
                                12/30/99            4,100            32.3152
                                12/29/99            5,900            31.9600
                                12/28/99           10,000            30.8119
               THE GABELLI CAPITAL ASSET FUND
                                12/06/99            5,000            31.2625
















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