TRIAD SYSTEMS CORP
SC 13D/A, 1997-01-22
COMPUTER INTEGRATED SYSTEMS DESIGN
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         THIS PAPER DOCUMENT IS BEING SUBMITTED PURSUANT
TO RULE 902(g) OF REGULATION S-T

               SECURITIES AND EXCHANGE COMMISSION
                     Washington, D.C.  20549
                            
                          SCHEDULE 13D
                       (Amendment No. 18)
                              
            Under the Securities Exchange Act of 1934


                  TRIAD SYSTEMS CORPORATION          
                        (Name of Issuer)

                                
            Common Stock Par Value $0.001 Per Share     
                (Title of Class and Securities) 

                                
                             895818201                
              (CUSIP Number of Class of Securities)
                                

                                                                
                      James E. McKee,  Gabelli Funds, Inc.,
           Corporate Center at Rye, Rye, NY 10580-1430 (914) 921-5294
            (Name, Address and Telephone Number of Person Authorized
                      to Receive Notices and Communications


                                  January 20, 1997            
                          (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 which is the subject of this State
- -ment because of Rule 13d-1(b)(3) or (4), check the following box:
                                                     _____                      
                                                    /____/

Check the following box if a fee is being paid with this Statement:
                                                    _____
                                                   /____/
_________________________________________________________________

CUSIP No. 895818201                                        13D
_________________________________________________________________
(1)  NAMES OF REPORTING PERSONS 
      S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
      Gabelli Funds, 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*
      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
                                        :     100,000 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None  (Item 5) 
 OWNED BY EACH REPORTING                :________________________
 PERSON WITH                            : (9) SOLE DISPOSITIVE 
                                        :     POWER
                                        :     100,000 (Item 5)
                                        :________________________
                                        :(10) SHARED DISPOSITIVE 
                                        :     POWER
                                        :     None  (Item 5)  
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      100,000 (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
      0.56%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      HC, IA, CO
_________________________________________________________________
              *SEE INSTRUCTIONS BEFORE FILLING OUT!  
________________________________________________________________

CUSIP No. 895818201                                        13D
_________________________________________________________________ 
(1) NAMES OF REPORTING PERSONS 
      S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
      GAMCO Investors, Inc.              I.D. No. 13-2951242
_________________________________________________________________ 
(2) 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)          _____
                                                     /  x /
_________________________________________________________________
(6)  CITIZENSHIP OR PLACE OF ORGANIZATION
      New York
_________________________________________________________________               
                                        : (7) SOLE VOTING POWER
                                        :     552,500 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None 
 OWNED BY EACH REPORTING                :________________________   
 PERSON WITH                            : (9) SOLE DISPOSITIVE 
                                        :     POWER
                                        :     612,500 (Item 5)
                                        :________________________               
                                        :(10) SHARED DISPOSITIVE 
                                        :     POWER
                                        :     None  
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      612,500 (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
      3.43%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      IA, CO
_________________________________________________________________
              *SEE INSTRUCTIONS BEFORE FILLING OUT!   
_________________________________________________________________

CUSIP No. 895818201                                        13D
_________________________________________________________________ 
(1)  NAMES OF REPORTING PERSONS 
      S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
      Gabelli International Limited  I.D. No. Foreign Corporation
_________________________________________________________________
(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
      British Virgin Islands
_________________________________________________________________               
                                        : (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*
      CO
_________________________________________________________________

              *SEE INSTRUCTIONS BEFORE FILLING OUT!
________________________________________________________________

CUSIP No. 895818201                                        13D
_________________________________________________________________
(1)  NAMES OF REPORTING PERSONS 
      S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
      Gabelli Performance Partnership L.P.   I.D. No. 13-3396569
_________________________________________________________________ 
(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
      Delaware 
_________________________________________________________________               
                                        : (7) SOLE VOTING POWER
                                        :     169,900 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None  
 OWNED BY EACH REPORTING                :________________________   
 PERSON WITH                            : (9) SOLE DISPOSITIVE 
                                        :     POWER
                                        :     169,900 (Item 5)
                                        :________________________               
                                        :(10) SHARED DISPOSITIVE 
                                        :     POWER
                                        :     None  
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      169,900 (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
      0.95%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      PN
_________________________________________________________________

              *SEE INSTRUCTIONS BEFORE FILLING OUT!
_________________________________________________________________

CUSIP No. 895818201                                        13D
_________________________________________________________________ 
 (1)  NAMES OF REPORTING PERSONS 
      S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
      Gabelli Associates Fund            I.D. No. 13-3246203
_________________________________________________________________  
(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
                                        :     656,300 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None  
 OWNED BY EACH REPORTING                :________________________
 PERSON WITH                            : (9) SOLE DISPOSITIVE 
                                        :     POWER
                                        :     656,300 (Item 5)
                                        :________________________               
                                        :(10) SHARED DISPOSITIVE 
                                        :     POWER
                                        :     None  
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      656,300 (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
      3.68%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      PN
_________________________________________________________________

              *SEE INSTRUCTIONS BEFORE FILLING OUT!  
________________________________________________________________

CUSIP No. 895818201                                        13D
_________________________________________________________________
(1)  NAMES OF REPORTING PERSONS 
      S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
      Gabelli Associates Limited     I.D. No. Foreign Corporation
_________________________________________________________________
(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
      British Virgin Islands
_________________________________________________________________               
                                        : (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*
      CO
_________________________________________________________________

              *SEE INSTRUCTIONS BEFORE FILLING OUT!  
_________________________________________________________________

CUSIP No. 895818201                                        13D
_________________________________________________________________ 
(1)  NAMES OF REPORTING PERSONS 
     S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
     Mario J. Gabelli                  I.D. No. ###-##-####
_________________________________________________________________  
(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*                         _____
                                                     /  x /
_________________________________________________________________
(13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
      0.00%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      IN
_________________________________________________________________

              *SEE INSTRUCTIONS BEFORE FILLING OUT!
Item 1.   Security and Issuer
          This Amendment No. 18 to Schedule 13D on the Common Stock of Triad
Systems Corporation (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 2, 1989.  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 ("Mr. Gabelli") and
various entities which he directly or indirectly controls or for which he 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") and Inter-Community Telephone Company ("Inter-Community")
(collectively, "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 13D or implementation
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 Funds, Inc. ("GFI"), GAMCO Investors, Inc.
("GAMCO"), Gabelli Securities, Inc. ("GSI"), Gabelli & Company, Inc. ("Gabelli
& Company"), Gabelli Performance Partnership L.P. ("GPP"), GLI, Inc. ("GLI"),
Gabelli Associates Fund ("Gabelli Associates"), Gabelli Associates Limited
("GAL"), Gabelli & Company, Inc. Profit Sharing Plan (the "Plan"), Gabelli
International 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"), Gabelli
Asset Management Company International Advisory Services Ltd. ("GIASL"), Mr.
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".    
          GAMCO, a wholly-owned subsidiary of GFI, is an investment adviser
registered under the Investment Advisers Act of 1940, as amended ("Advisers
Act").  GAMCO is an investment manager providing discretionary managed account
services in the equity area for employee benefit plans, private investors,
endowments and foundations. 
          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, a wholly-owned subsidiary of GSI, is the trustee for the
Gabelli-Rosenthal & Partners, L.P. Liquidating Trust.
          Gabelli Associates is a New York limited partnership whose primary
business purpose is risk arbitrage investments.  GSI and Mr. 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 will be 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.
          GSI, a majority-owned subsidiary of GFI, is a Delaware corporation
which as a part of its business regularly purchases and sells securities for
its own account.  It is the immediate parent of Gabelli & Company.  
          GFI is the ultimate parent company for a variety of companies engaged
in the securities business, each of which is named above.  In addition, GFI is
an investment adviser registered under the Advisers Act.  GFI is an investment
adviser which presently provides discretionary managed account services for 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. and
The Gabelli Global Interactive Couch Potato Fund (collectively, the "Funds"),
which are registered investment companies.
          The Plan, a qualified employee profit sharing plan, covers
substantially all employees of GFI and its affiliates. 
          GPP, a Delaware limited partnership, is a limited partnership whose
primary business purpose is investing in securities.  Mr. Gabelli is the
general partner and chief investment officer of 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.  The investments of
GIL are managed by Mr. Gabelli who is also a director 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. 
The investments of GIL II are managed by Mr. Gabelli who is also a director and
Chairman of the Board of Directors of GIL II.
       ALCE is a Delaware 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 a Delaware 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.
       GIASL is a corporation whose primary business purpose is to provide
advisory services to offshore funds.
       Lynch, an Indiana corporation, is a diversified public company traded on
the American Stock Exchange.  Its subsidiaries are engaged in communications,
services, and manufactured products.  Spinnaker, a Delaware subsidiary of
Lynch, is also a public company and its stock is traded through the NASDAQ
System.  Spinnaker is a diversified manufacturing firm with major subsidiaries
in specialty adhesive-backed materials business.  Another of Lynch's subsidiar-
ies, Western New Mexico, provides telephone services in a service area in
Southwestern New Mexico.  Inter-Community, which is also a subsidiary of Lynch,
provides local telephone services in an area 40 miles west of Fargo, North
Dakota.   Lynch and Spinnaker actively pursue new business ventures and
acquisitions.  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.  Mr. Gabelli is Chairman of Lynch and owns beneficially 23.52% of
the shares of common stock of Lynch. 
          Mr. Gabelli is the majority stockholder and Chairman of the Board of
Directors and Chief Executive Officer of GFI and the Chief Investment Officer
for each of the Reporting Persons.  GFI, in turn, is the majority stockholder
of GAMCO.  GFI is also the majority stockholder of GSI.  Gabelli & Company is a
wholly-owned subsidiary of GSI.  GLI is a wholly-owned subsidiary of GSI.
          The Reporting Persons do not admit that they constitute a group. 
          GFI, GAMCO, Gabelli & Company and GLI are New York corporations and
GSI is a Delaware corporation, each having its principal business office at One
Corporate Center, Rye, New York 10580-1434. GPP is a Delaware limited
partnership having its principal business office at 8 Sound Shore Drive,
Greenwich, Connecticut 06830.  Gabelli Associates is a New York limited
partnership having its principal business office at One Corporate Center, Rye,
New York 10580-1434. GAL and GIL are corporations organized under the laws of
the British Virgin Islands having their 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 their principal
business office at c/o Coutts & Company (Cayman) Limited, West Bay Road, Grand
Cayman, British West Indies.  GIASL is a Bermuda corporation with its principal
business office at c/o Appleby, Spurling & Kempe, Cedar House, 41 Cedar Avenue,
Hamilton HM12, Bermuda.  Lynch is an Indiana corporation having its principal
business office at 8 Sound Shore Drive, Greenwich, CT 06830.  Spinnaker is a
Delaware corporation having its principal business office at 251 Welton Street,
Hamden, CT 06511. 
          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. 
          (d) and (e) -  On December 8, 1994, the SEC instituted and simulta-
neously accepted offers for the settlement of an administrative proceeding
against Gabelli & Company and GAMCO.  The order instituting the proceeding
included a finding, which Gabelli & Company and GAMCO neither admitted nor
denied, that they failed to implement and maintain policies and procedures
reasonably designed to prevent the misuse of material, nonpublic information by
not sepecifically addressing the special circumstances that arose from their
affiliation with Lynch Corporation, a public company.  To resolve this matter,
Gabelli & Company and GAMCO agreed to cease and desist from violating Section
15(f) of the 1934 Act and Section 204A of the Advisers Act, respectively.  They
further agreed to each pay a civil penalty in the amount of $50,000, and to
retain, and adopt the recommendations of, an independant consultant regarding
their Section 15(f) and Section 204A policies and procedures.  
     (f) - Reference is made to Schedule I hereto. 

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 1,538,700 shares, representing 8.63% of the 17,835,409
shares outstanding as reported in the Issuer's most recently filed Form 10-K
for the fiscal year ended September 30, 1996.  The Reporting persons
beneficially own those Securities as follows: 










                              Shares of                % of
                              Common                   Class of
Name                          Stock                    Common  

GFI:
  As Principal                          0                0.00%
  As Agent                        100,000                0.56%

GAMCO:
  As Principal                          0                0.00%
  As Agent                        612,500                3.43%

GPP                               169,900                0.95%

GIL                                     0                0.00%

GAL                                     0                0.00%

Gabelli Associates Fund           656,300                3.68%

Mr. Gabelli                             0                0.00%


        Mr. Gabelli is deemed to have beneficial ownership of the Securities
beneficially owned by each of the foregoing persons and GFI is deemed to have
beneficial ownership of the Securities beneficially owned by each of the
foregoing persons other than Mr. 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 GAMCO Investors, Inc. does not have authority to vote 60,000 of the
reported shares, and except that GFI has sole dispositive and voting power with
respect to the 100,000 shares of the Issuer held by the 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 of the Funds shall respectively vote that Fund's shares, and
except that, 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
considerations, and except that the power of Mr. Gabelli and GFI 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 by each of the Reporting Persons
and Covered Persons is set forth on Schedule II annexed hereto and incorporated
herein by reference. 
        (e)  Not applicable. <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. 
January 21, 1997
                                   GAMCO INVESTORS, INC.  
                                 


                                   By:_________________________
                                      Douglas R. Jamieson
                                      Executive Vice President


                                   GABELLI PERFORMANCE PARTNERSHIP



                                   By:___________________________
                                      Mario J. Gabelli,
                                      General Partner
                                      by: James E. McKee            
                                          Attorney-in-Fact 


                                   MARIO J. GABELLI



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


                                   GABELLI FUNDS, INC.



                                   By:______________________________
                                      James E. McKee               
                                      General Counsel






                                   GABELLI INTERNATIONAL LIMITED 




                                   By:______________________________
                                      Mario J. Gabelli, Chairman
                                      and Investment Manager
                                      by: James E. McKee           
                                          Attorney-in-Fact



                                   GABELLI ASSOCIATES FUND 

                                
                                   By:_________________________
                                      Gabelli Securities, Inc.,
                                      General Partner
                                      by: James E. McKee
                                          Vice President, Secretary
                                          and General Counsel


                                   GABELLI ASSOCIATES LIMITED

                                 

                                   By:_________________________
                                      Gabelli Securities,Inc.,
                                      Investment Manager
                                      by: James E. McKee
                                          Secretary and General
                                          Counsel



















                                                       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 officers 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 organization in which such employment is conducted. 
Unless otherwise specified, the principal employer of each such individual is
Gabelli Funds, Inc., 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 administrative body of competent jurisdiction as a result of
which he was or is subject to a judgment, decree or final order enjoining
future violations 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 Funds, Inc. 

Directors: 

     Mario J. Gabelli*

     Richard B. Black              Chairman of Raster Image
                                   Processing Systems; Chairman
                                   ECRM; Director of Archetype
                                   and Oak Technology; 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
                                   Executive Officer of The
                                   Morgan Group, Inc.;
                                   Secretary & Treasurer
                                   United Holdings              
                                   2545 Wilkens Avenue
                                   Baltimore, MD  21223

     Dr. Eamon M. Kelly            President
                                   Tulane University
                                   218 Gibson Hall
                                   6823 St. Charles Avenue
                                   New Orleans, LA  70118

     Marc J. Gabelli               Vice President


Officers:

     Mario J. Gabelli              Chairman, Chief Executive
                                   Officer and Chief Investment
                                   Officer
     
     Stephen G. Bondi              Vice President - Finance

     James E. McKee                Vice President, General 
                                   Counsel and Secretary

_____________________

  
 *  Mr. Gabelli is the Chairman, Chief Executive Officer and Chief Investment
Officer of Gabelli Funds, Inc. and of GAMCO Investors, Inc.; Director/Trustee of
all registered investment companies advised by Gabelli Funds, Inc.; Chairman and
Chief Executive Officer of Lynch Corporation; Director of Spinnaker Industries,
Inc.; Director of the Morgan Group, Inc. 



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              Chairman, Chief                                
                                 Executive Officer and Chief                    
                                 Investment Officer  

   Joseph R. Rindler, Jr.        President and Chief Operating                  
                                 Officer   

   Douglas R. Jamieson           Executive Vice President 

   Stephen G. Bondi              Vice President

   James E. McKee                Vice President, General Counsel 
                                 and Secretary                                
                                                                              
Gabelli Securities, Inc.

Directors:

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

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

   Ronald L. Gallatin            Consultant
                                 Gabelli Securities, Inc.
                                 One Corporate Center
                                 Rye, NY  10580

   Francine Sommer               Chief Executive Officer of
                                 General Partner of Gabelli                     
                                 Multimedia Partners, L.P.
                                 One Corporate Center
                                 Rye, NY  10580




Officers:
   
    Stephen G. Bondi                  Vice President

    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 

     Walter K. Walsh               Compliance Officer

     James E. McKee                Secretary



GLI, Inc.
Directors:

     Mario J. Gabelli              See above-Gabelli Funds, Inc.


Officers:

     Mario J. Gabelli              Chairman and Chief Investment
                                   Officer

     Stephen G. Bondi              Vice President
<PAGE>
Gabelli Associates Limited

Directors:

     Mario J. Gabelli              See above-Gabelli Funds, Inc.

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

     Mario J. Gabelli              Chief Investment Officer

     Kevin Bromley                 Vice President, Treasurer and
                                   Assistant Secretary

     Sandra Wight                  Secretary and Assistant Treasurer


Gabelli International Limited

Directors:

     Mario J. Gabelli              See above-Gabelli Funds, Inc.
   
     MeesPierson  (Cayman)         British American Centre   
     Limited                       Dr. Roy's Drive- Phase 3
                                   Georgetown, Grand Cayman   
                                   Cayman Islands, British West Indies

Officers:

     Kevin Bromley                 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 Wight                  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


Gabelli Asset Management Company 
International Advisory Services Ltd.

Directors:

     Marc J. Gabelli               See above-Gabelli Funds, Inc.

     Stephen G. Bondi              See Above-Gabelli Funds, Inc.

     Joseph R. Rindler, Jr.        See above-GAMCO Investors, Inc.

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

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


Lynch Corporation
8 Sound Shore Drive
Greenwich, CT  06830

Directors:

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

     Morris Berkowitz              Business Consultant
                                   163-43 Willets Point Blvd.
                                   Whitestone, NY 11357

     Mario J. Gabelli              See above-Gabelli Funds, Inc.

     Paul Woolard                  Business Consultant
                                   116 East 68th Street
                                   New York, NY 10021

     E. Val Cerutti                Business Consultant          
                                   Cerutti Consultants 
                                   227 McLain Street
                                   Mount Kisco, NY   10549




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

     Salvatore Muoio               


Officers:

     Mario J. Gabelli              Chairman and Chief Executive   
                                   Officer

     Joseph H. Epel                Treasurer

     Robert E. Dolan               Chief Financial Officer 

     Carmine Ceraolo               Assistant Controller

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

Spinnaker Industries, Inc.
600 N. Pearl Street 
Suite 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, 
                                   George & Co., Inc.            
                                   600 N. Pearl Street
                                   Suite 2160
                                   Dallas, TX  75201

     Mario J. Gabelli              See above-Gabelli Funds, Inc.

     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

Officers:

     James W. Toman                Controller          

     Ned N. Fleming, III           President

     Richard J. Boyle              Chairman and
                                   Chief Executive Officer

     Robert A. Hurwich             Secretary

     Mark A. Matteson              Vice President, Corporate
                                   Development


Entoleter, Inc.
251 Welton Street
Hamden, CT  06517

Directors:

     Ned N. Fleming, III           See above-Spinnaker

     Mark A. Matteson              See above-Spinnaker

     James W. Toman                See above-Spinnaker

     Robert P. Wentzel             See above Entoleter

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

Officers:

     James W. Toman                Chief Financial Officer
                                   and Secretary

     Robert P. Wentzel             President

     Anthony R. Massaro            Vice President-Manufacturing


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

Directors:

     Jack C. Keen                  Chairman

     Jack W. Keen                  President

     Dr. Brian E. Gordon           Vice President

     Mary Beth Baxter              Secretary & Treasurer

     Robert E. Dolan               See above-Lynch Corporation

     Robert A. Hurwich             See above-Lynch Corporation

     Carmine Ceraolo               See above-Lynch Corporation

Officers:

     Jack C. Keen                  Chairman of the Board

     Jack W. Keen                  President

     Jack L. Bentley               Executive Vice President

     Dr. Brian E. Gordon           Vice President

     Charles M. Baxter             Sr. Vice President-Operations
     
     Mary Beth Baxter              Secretary & Treasurer

     Robert A. Hurwich             Assistant Treasurer



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

Directors:

     Mary J. Carroll               See above-Lynch Corporation

     Carmine P. Ceraolo            See above-Lynch Corporation
                                   
     Robert E. Dolan               See above-Lynch Corporation

     Joseph H. Epel                See above-Lynch Corporation

     Robert A. Hurwich             See above-Lynch Corporation

     Leone A. Nilsen               President

     Roger J. Nilsen               P.O. Box 146
                                   Hannaford, ND 58448

     Duane A. Plecity              Secretary

     Harry B. Snyder               P.O. Box 131
                                   Buffalo, ND  58011
                                   
     Robert Snyder                 200 Broadway South
                                   Buffalo, ND  58011

Officers:

     Leone A. Nilsen               President
     
     Robert Snyder                 Vice President 
     
     Duane A. Plecity              Secretary
     
     Harry B. Snyder               Treasurer

     Joseph H. Epel                Assistant Treasurer

     Robert A. Hurwich             Assistant Secretary



Lynch Telecommunications Corporation
8 Sound Shore Drive
Greenwich, CT  06830

Directors:

     Richard A. Kiesling           2801 International Lane
                                   Suite 207
                                   Madison, WI  53740           

     Jack C. Keen                  See above-Western New Mexico
                                   Telephone Company

     Robert A. Snyder              See above-Inter-Community
                                   Telephone Company
Officers:

     Robert A. Hurwich             Secretary

     Mary Beth Baxter              Treasurer and 
                                   Assistant Secretary

     Robert E. Dolan               Controller



Lynch Telephone Corporation
8 Sound Shore Drive
Greenwich, CT  06830

Directors:

     Robert E. Dolan               Controller

     Jack C. Keen                  Chairman

Officers:

     Jack C. Keen                  Chairman

     Jack W. Keen                  President

     Robert A. Hurwich             Secretary

     Mary Beth Baxter              Treasurer and 
                                   Assistant Secretary

     Robert E. Dolan               Controller





                                             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-TRIAD SYSTEMS CORP                                      
                                                                                
          THE GABELLI PERFORMANCE PARTNERSHIP                                   
                                 1/02/97           35,000-             *DO      
          GABELLI INTERNATIONAL LTD                                             
                                 1/14/97            7,000             9.5000    
                                 1/14/97           14,000-            9.5000    
                                12/04/96            1,000             6.2500    
          GABELLI FUNDS, INC.                                                   
               THE GABELLI SMALL CAP GROWTH FUND                                
                                 1/20/97           17,000-            9.6247    
          GAMCO INVESTORS, INC.                                                 
                                 1/20/97           91,600-            9.5744    
                                 1/20/97            6,000-            9.6250    
                                 1/17/97           40,000-            9.4375    
                                 1/14/97           20,000-            9.5000    
                                 1/13/97           40,000-            9.5000    
                                 1/13/97            2,000-            9.3750    
                                 1/10/97           15,000              *DI      
                                12/26/96           20,000-             *DO      
          GABELLI ASSOCIATES LTD                                                
                                 1/20/97           51,000-            9.5549    
          GABELLI & COMPANY MARKET MAKING ACCOUNT                               
                                 1/03/97            1,000-            9.5000    
                                                                                
 










                                                                               
          (1) UNLESS OTHERWISE INDICATED, ALL TRANSACTIONS WERE EFFECTED        
              ON THE NY STOCK EXCHANGE.                                         
                                                                                
          (2) PRICE EXCLUDES COMMISSION.                                        
                                                                                
          (*) RESULTS IN CHANGE OF DISPOSITIVE POWER AND BENEFICIAL OWNERSHIP.  
                                                                                
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