SECURITIES AND EXCHANGE COMMISSION
                     Washington, D.C.  20549
                                
                                                
                          SCHEDULE 13D
                       (Amendment No. 27)
                                
                                                
            Under the Securities Exchange Act of 1934
                                 
                       IDEX CORPORATION                
                        (Name of Issuer)
                                
                        
             Common Stock Par Value $0.01 Per Share     
                (Title of Class and Securities) 
                                
                                                
                           45167R104                  
              (CUSIP Number of Class of Securities)
                                                
                                                
                                                
         J. Hamilton Crawford, Jr., Gabelli Funds, Inc.,
 One Corporate Center, Rye, New York 10580-1434, (914) 921-5067
    (Name, Address and Telephone Number of Person Authorized
             to Receive Notices and Communications)
                                
                                                
                       June 5, 1995                       
     (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. 45167R104                                        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*
      WC 
_________________________________________________________________
(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
                                        :     866,000 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None    (Item 5) 
 OWNED BY EACH REPORTING                :________________________
 PERSON WITH                            : (9) SOLE DISPOSITIVE 
                                        :     POWER
                                        :     866,000 (Item 5)
                                        :________________________
                                        :(10) SHARED DISPOSITIVE 
                                        :     POWER
                                        :     None    (Item 5)  
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      866,000   (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
      4.53%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      HC
_________________________________________________________________
              *SEE INSTRUCTIONS BEFORE FILLING OUT!
_____________________________________

CUSIP No. 45167R104                                        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)  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)         ____
                                                     /x___/
_________________________________________________________________
(6)  CITIZENSHIP OR PLACE OF ORGANIZATION
      New York
_________________________________________________________________ 
                                        : (7) SOLE VOTING POWER
                                        :     1,492,472 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None 
 OWNED BY EACH REPORTING                :________________________ 
 PERSON WITH                            : (9) SOLE DISPOSITIVE 
                                        :     POWER
                                        :     1,690,422 (Item 5)
                                        :________________________ 
                                        :(10) SHARED DISPOSITIVE 
                                        :     POWER
                                        :     None  
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      1,690,422 (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
      8.84%      
________________________________________________________
(14) TYPE OF REPORTING PERSON*
      IA
_________________________________________________________________
              *SEE INSTRUCTIONS BEFORE FILLING OUT!   
_______________________________________

CUSIP No. 45167R104                                        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*
      WC 
_________________________________________________________________
(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
      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!
          This Amendment No. 27 to Schedule 13D on Idex 
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 June 16, 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 and for which he acts as chief investment officer. 
These entities, except for Lynch Corporation ("Lynch"), Spinnaker
Industries, Incorporated ("Spinnaker", formerly known as Safety
Railway Services Corporation), Western New Mexico Telephone
Company ("Western New Mexico") and Inter-Community Telephone
Company ("Inter-Community") engage in various aspects of the
securities business, primarily as investment advisor to various
institutional and individual clients, including registered
investment companies and pension plans, as broker/dealer and as
managing general partner of various private investment partner-
ships.  Certain of these entities may also make investments for
their own account. 
          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 administra-
tive uniformity, these persons have decided to file their benefi-
cial 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 ("GPP"), GLI, Inc. ("GLI"), The Gabelli
Associates Fund ("Gabelli Associates"), Gabelli Associates
Limited ("GAL"), The Gabelli & Company, Inc. Profit Sharing Plan
(the "Plan"); Gabelli International Limited ("GIL"), Gabelli
International II Limited ("GIL II"), ALCE Partners, L.P.
("ALCE"), Gabelli Multimedia Partners, L.P. ("Multimedia
Partners"), Mario J. Gabelli ("Mr. Gabelli"), Lynch, Spinnaker,
Western New Mexico and Inter-Community. Those of the foregoing
persons signing this Schedule 13D are hereafter referred to as
the "Reporting Persons". 
          GAMCO, a majority owned subsidiary of GFI, is an
investment adviser registered under the Investment Advisers Act
of 1940, as amended.  GAMCO is a money manager providing discre-
tionary 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 l934 Act, which as a part of
its business regularly purchases and sells securities for its own
account.  In addition, shares are held for clients who have
granted Gabelli & Company trading authorization over their
investment accounts. 
          GLI, a wholly-owned subsidiary of GSI, is a general
partner of G&R Partners, a Delaware partnership ("G&R"), which,
in turn ,is the general partner of Gabelli-Rosenthal & Partners,
L.P., a Delaware limited partnership ("G-R"), whose primary busi-
ness purpose is to do friendly leveraged buyouts.  At the present
time, G-R's sole business purpose is to monitor the existing
portfolio investments.
          Gabelli Associates, a New York limited partnership, is
a 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 only to persons who are neither citizens nor residents of
the United States and may be offered to a limited number of U.S.
investors consisting primarily of pension and profit sharing
trusts, charities and other tax-exempt entities.  The investments
of GAL are managed by Gabelli Securities, Inc. (the "Investment
Manager") with Mr. Gabelli as the Chief Investment Officer.
          GSI, a majority owned subsidiary of GFI, is a holding
company which as a part of its business regularly purchases and
sells securities for its own account.  It is the immediate parent
of Gabelli & Company.  In addition, GSI and Mr. Gabelli are the
general partners of Gabelli Associates. 
          On August 31, 1990, Gabelli Funds, Inc., formerly a
wholly-owned subsidiary of The Gabelli Group, Inc. ("TGGI") was
merged into TGGI.  Subsequent to the merger on September 18,
1990, TGGI's name was changed to Gabelli Funds, Inc. ("GFI"). 
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
Investment Advisers Act of 1940, as amended.  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 Capital Asset 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, The Gabelli Global Multimedia Trust
Inc., and the Gabelli Global Interactive Couch Potato Fund which
are registered management 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 investments in
securities.  Mr. Gabelli is the general partner and chief invest-
ment officer of GPP. 
          GIL is a corporation whose primary business purpose is
investing primarily in a portfolio of equity securities and
securities convertible into, or exchangeable for equity securit-
ies in order to achieve its investment objective of significant
long-term growth of capital.  Shares of GIL's Common Stock are
offered only to persons who are neither citizens nor residents of
the United States and may be offered to a limited number of U.S.
investors consisting primarily of pension and profit sharing
trusts, charities and other tax-exempt entities.  The investments
of GIL are managed by Mr. Gabelli (the "Investment Manager") who
is also a director and Chairman of the Board of Directors of GIL.
          GIL II is a corporation whose primary business purpose
is investing primarily in a portfolio of equity securities and
securities convertible into, or exchangeable for equity securit-
ies in order to achieve its investment objective of significant
long-term growth of capital.  Shares of GIL's II Common Stock are
offered only to persons who are neither citizens nor residents of
the United States and may be offered to a limited number of U.S.
investors consisting primarily of pension and profit sharing
trusts, charities and other tax-exempt entities.  The investments
of GIL II are managed by Mr. Gabelli (the "Investment Manager")
who is also a director and Chairman of the Board of Directors of
GIL II.
       ALCE is a Delaware private investment limited partnership
that seeks long-term capital appreciation primarily through
investment in public equity securities.  GSI is a General Partner
of ALCE.
       Multimedia Partners is a Delaware private investment
limited partnership whose objective is to provide long-term
capital appreciation by investing primarily in both public and
private multimedia communications companies.  GSI is a general
partner of Multimedia Partners.
       Lynch, an Indiana corporation, is a diversified public
company traded on the American Stock Exchange.  Its subsidiaries
are engaged in communications, services, securities brokerage and
manufactured products.   Spinnaker, a Delaware subsidiary of
Lynch, is also a public company and its stock is traded through
the NASDAQ System.  Spinnaker manufactures and sells industrial-
process and air pollution control equipment.  Another of Lynch's
subsidiaries, 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, Spinnaker, Western New Mexico and Inter-
Community 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 24.39% of the shares of Common
stock of Lynch, including shares obtainable upon the conversion
of the Convertible Debentures 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 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 are Delaware corporations, 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, GIL, and GIL II 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.  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
simultaneously accepted offers for the settlement of an
administrative proceeding againts Gabelli & Company, Inc.  The
order instituting the proceeding included a finding, which
Gabelli & Company and GAMCO neither admitted nor denied, that
they failed to impliment 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 Securities Exchange Act of 1934 (the
"Exchange Act") and Section 204A of the Investment Advisers Act
of 1940 (the "1940 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.  
          On December 13, 1991, the Virginia State Corporation
Commission entered an order of settlement in final disposition of
matters arising from an allegation that GAMCO had transacted
business in Virginia as an investment adviser without having been
registered as such under Virginia Code Section 13.1-504A or an
exemption therefrom.  GAMCO consented to the entry of the order
without admitting or denying the allegation and without a
hearing.  The terms of the order provide that GAMCO would pay a
fine and cots totalling fifty-five thousand dollars and would not
transact business in Virginia as an investment adviser unless it
was registered as such under section 13.1-504A or was exempt from
registration.  
     (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 2,556,422 shares, repre-
senting 13.37% of the 19,114,252 shares outstanding as reported
in the most recently filed Form 10-Q dated March 31, 1995.  The
Reporting Persons beneficially own those Securities as follows: 
                         Shares of           % of
                         Common              Class of
Name                     Stock               Common  

GAMCO 
  As Principal                  0                0.00%
  As Agent              1,690,422                8.84%

GFI
  As Principal                  0                0.00%
  As Agency               866,000                4.53%      
   
Mario J. 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 owned beneficially 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 197,950 of the
reported shares, and except that GFI has sole dispositive and
voting power with respect to the shares of the Issuer held by the
The Gabelli Asset Fund, The Gabelli Growth Fund, The Gabelli Equity
Trust, Inc., The Gabelli Convertible Securities Fund, Inc., The
Gabelli Value Fund Inc., The Gabelli Small Cap Growth Fund, The
Gabelli Equity Income Fund, The Gabelli Global Telecommunications
Fund, The Gabelli Global Convertible Securities, The Gabelli Global
Interactive Couch Potato Fund, Gabelli Gold Fund, Inc., The Gabelli
Global Multimedia Trust Inc., The Gabelli Capital Asset Fund,
and/or The Gabelli ABC Fund 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 Fund (other than The Gabelli Growth Fund) shall
respectively vote that Funds 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. 

Signature
            After reasonable inquiry and to the best of my know-
ledge and belief, I certify that the information set forth in this
statement is true, complete and correct. 
Dated:    June 6, 1995

                                   GABELLI FUNDS, INC.  
                                        
                                                            

                                   By:_________________________
                                      J. Hamilton Crawford, Jr.
                                      Senior Vice President 
                                      and General Counsel

               
                                   GAMCO INVESTORS, INC.  
                                   
                                        
                                   By:_________________________
                                      Douglas R. Jamieson  
                                      Chief Operating Officer
                                      and Executive Vice President
                                   


                                   Mario J. Gabelli

                                   By:____________________________
                                      J. Hamilton Crawford, Jr.
                                      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
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 other-
wise 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. 


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

Officers:

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

     J. Hamilton Crawford, Jr.     Senior Vice President
                                   and General Counsel 

     Stephen G. Bondi              Vice President - Finance

     James E McKee                 Vice President, Co-General 
                                   Counsel and Assistant
                                   Secretary

     Joseph J. Frazzitta           Assistant Secretary



GAMCO Investors, Inc.

Directors:
     Douglas R. Jamieson
     Joseph R. Rindler, Jr.
     Regina Pitaro
     Joseph J. Frazzitta
     F. William Scholz, II

Officers:
     
     Mario J. Gabelli              Chief Investment Officer

     Douglas R. Jamieson           Chief Operating Officer and
                                   Executive Vice President 

     Joseph J. Frazzitta           Vice President and Chief
                                   Financial Officer
  
     James E. McKee                Vice President 
                                   and General Counsel

     J. Hamilton Crawford, Jr.     Assistant Secretary    



Gabelli Securities, Inc.

Directors:

     Charles C. Baum               See above-Gabelli Funds, Inc.


     Joseph R. Rindler             Managing Director
                                   GAMCO Investors, Inc.
                                   One Corporate Center
                                   Rye, NY  10580

     David Perlmutter              Perlmutter & Associates
                                   200 Park Avenue, Suite 4515
                                   New York, N.Y.  10166

     Stephen G. Bondi              Acting Chief Operating Officer
                                   and Vice President


Advisors:

     Vincent J. Amabile
     Robert Blake

Officers:

     Stephen G. Bondi              Acting Chief Operating Officer
                                   and Vice President

     J. Hamilton Crawford, Jr.     Senior Vice President, 
                                   Assistant Secretary, and
                                   General Counsel

     Joseph J. Frazzitta           Vice President - Finance


Gabelli & Company, Inc.

Directors:

     James G. Webster, III         Chairman 

     Joseph J. Frazzitta           Vice President and
                                   Chief Financial Officer

Officers:

     James G. Webster, III         Chairman 

     Joseph J. Frazzitta           Vice President/Finance and
                                   Chief Financial Officer

     Stephen G. Bondi              Vice President 

     J. Hamilton Crawford, Jr.     Senior Vice President,
                                   Secretary and 
                                   General Counsel
     
     Walter K. Walsh               Operations and Compliance
                                   Officer



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

     J. Hamilton Crawford, Jr.     Assistant Secretary  




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

     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

Lynch Corporation
8 Sound Shore Drive
Greenwich, CT  06830

Directors:

     Paul J. Evanson               Chief Financial Officer 
                                   FPL Group, Inc.
                                   P.O Box 14000
                                   700 Universe Blvd.
                                   Juno Beach, Fl 33408

     Bradley J. Bell               Vice President & Treasurer
                                   Whirlpool Corp.
                                   2000 M. 63 North
                                   Administrative Center
                                   Benton Harbor, MI  49022

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


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

     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

Officers:

     Mario J. Gabelli              Chairman and Chief Executive   
                                   Officer

     Michael J. Small              Office of the President

     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.
One Galleria Tower
13355 Noel Road
Suite 1100
Dallas, TX  75240

Directors:

     Joseph P. Rhein               Chairman                
                                   241 McClenaghan Mill Road
                                   Wynnewood, PA 19096
                                   
     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.            
                                   One Galleria Tower
                                   13355 Noel Road
                                   Suite 1100
                                   Dallas, TX  75240
Officers:

     Robert E. Dolan               Controller

     Joseph H. Epel                Treasurer 

     James W. Toman                Assistant Secretary 

     Ned N. Fleming, III           President

     Richard J. Boyle              Chairman and
                                   Chief Executive Officer

     Robert A. Hurwich             Secretary


Entoleter, Inc.
251 Welton Street
Hamden, CT  06517

Directors:

     Joseph P. Rhein               See above-Spinnaker

     William F. Bullis             See above-Spinnaker

Officers:

     James W. Toman                Chief Financial Officer

     Joseph H. Epel                Treasurer and Secretary

     Robert E. Dolan               Controller


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

     Joseph H. Epel                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

     Joseph H. Epel                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

     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


Lynch Telecommunications Corporation
8 Sound Shore Drive
Greenwich, CT  06830

Directors:

     Robert E. Dolan               Controller

     Jack C. Keen                  Chairman

     Michael J. Small              Vice President

Officers:

     Jack C. Keen                  Chairman

     Jack W. Keen                  President

     Michael J. Small              Vice President

     Robert A. Hurwhich            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

     Michael J. Small              Vice President

Officers:

     Jack C. Keen                  Chairman

     Jack W. Keen                  President

     Michael J. Small              Vice President

     Robert A. Hurwhich            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-IDEX CORP                                            
                                                                  
 GABELLI FUNDS, INC.                                              
  THE GABELLI SMALL CAP GROWTH FUND                               
                5/30/95            2,000            34.0000       
                5/30/95            4,000-           34.0000       
                                                                  
  THE GABELLI ASSET FUND                                          
                5/03/95            2,100-           33.3036       
                                                                  
 GAMCO INVESTORS, INC.                                            
                6/05/95            1,500-           33.7500       
                6/02/95            2,250-           34.0000       
                6/01/95            2,500-           33.8250       
                5/31/95              750-           34.0000       
                5/30/95            1,250-           33.7750       
                5/26/95            2,600-           34.3005       
                5/24/95            1,000-           34.3750       
                5/15/95              400-           33.7500       
                5/12/95              250-           33.8750       
                5/11/95              800-           34.0000       
                5/10/95            1,600-           34.2500       
                5/09/95              500-           34.4500       
                5/08/95            2,400-           34.1250       
                5/04/95            1,500-           33.7500       
                5/02/95            1,500-           33.6667       
                5/01/95           21,000-           33.7643       
                4/27/95              500-           32.1250       
                4/20/95              750-           29.6250       
                4/17/95            2,850-           30.1250       
                4/11/95              500-           28.6250       
                4/10/95              600-           29.0000       





(1) UNLESS OTHERWISE INDICATED, ALL TRANSACTIONS WERE EFFECTED    
    ON THE NY STOCK EXCHANGE.                                     
(2) PRICE EXCLUDES COMMISSION.                                    




                                                  PAGE 27 OF 27