SECURITIES AND EXCHANGE COMMISSION
	Washington, D.C.  20549
	
	                                
	SCHEDULE 13D
	(Amendment No. 30)
	
	                               
	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)
	                                
	                                
	                                
	James E. McKee, 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)
	
	                                
	                February 21, 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:
                                                        ____     
                                                       /___/ 

         										
                                                      


_________________________________________________________________

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*
      00: 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
                                        :     1,013,250 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None    (Item 5) 
 OWNED BY EACH REPORTING                :________________________
 PERSON WITH                            : (9) SOLE DISPOSITIVE 
                                        :     POWER
                                        :     1,013,250 (Item 5)
                                        :________________________
                                        :(10) SHARED DISPOSITIVE 
                                        :     POWER
                                        :     None    (Item 5)  
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    1,013,250   (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
      6.74%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      HC, IA, CO
_________________________________________________________________
              *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
                                        :     1,864,847 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None 
 OWNED BY EACH REPORTING                :________________________ 
  PERSON WITH                            : (9) SOLE DISPOSITIVE 
                                        :     POWER
                                        :     1,964,972 (Item 5)
                                        :________________________ 
                                         :(10) SHARED DISPOSITIVE 
                                        :     POWER
                                        :     None  
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      1,964,972 (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
      6.74%       
________________________________________________________
(14) TYPE OF REPORTING PERSON*
      IA, CO
_________________________________________________________________
              *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
      Gabelli Asset Management Company International Advisory    
      Services Ltd.  
_________________________________________________________________
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
                                                       ____
                                                  (a) /___/
                                                       ____
                                                  (b) /___/
_________________________________________________________________
(3)  SEC USE ONLY
_________________________________________________________________
(4)  SOURCE OF FUNDS*
      00-Funds of 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
      Bermuda                     
_________________________________________________________________ 
                                        : (7) SOLE VOTING POWER
                                        :     1,500 (Item 5)
                                        :________________________
                                        : (8) SHARED VOTING POWER
 NUMBER OF SHARES BENEFICIALLY          :     None  
 OWNED BY EACH REPORTING                :________________________ 
  PERSON WITH                           : (9) SOLE DISPOSITIVE 
                                        :     POWER
                                        :     1,500 (Item 5)
                                        :________________________ 
                                        :(10) SHARED DISPOSITIVE 
                                        :     POWER
                                        :     None  
_________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
      1,500 (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
      0.01%
_________________________________________________________________
(14) TYPE OF REPORTING PERSON*
      CO
_________________________________________________________________

_________________________________________________________________

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*
     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. 30 to Schedule 13D on the Common 

Stock of 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 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 benefi-
cially 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 Potator 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 invest-
ment 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 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 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 simultaneously 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 2,979,722 shares, repre-
senting 10.22% of the 29,146,410 shares outstanding as reported 
in the most recently filed Form 10-K for the fiscal year ended 
December 31, 1996.  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          	1,964,972	6.74%

GFI
  As Principal	0	0.00%
  As Agent	 1,013,250	3.48%

GIASL	   1,500	0.01%

Mr. Gabelli	0	0.00% 

           Mr. Gabelli is deemed to have beneficial ownership of 
the Securities owned beneficially 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 100,125 of the 
reported shares, and except that GFI has sole dispositive and 
voting power with respect to the 1,013,250 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. 

































Signature
            
After reasonable inquiry and to the best of my knowledge and 
belief, I certify that the information set forth in this statement 
is true, complete and correct. 
Dated:	February 25, 1997

                                   GABELLI FUNDS, INC.  
                                 	
                          		

                                   By:_________________________
                                      James E. McKee
                                      General Counsel

     		
                                   GAMCO INVESTORS, INC.  
                                   
			               	
                                   By:_________________________
                                      Douglas R. Jamieson  
                                      Executive Vice President
	


	GABELLI ASSET MANAGEMENT COMPANY 
	INTERNATIONAL ADVISORY
	SERVICES, LIMITED


	By:__________________________
	   Marc J. Gabelli
	   Director
	   by: James E. McKee
	   Attorney-in-Fact


	Mario J. Gabelli


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





	Schedule I


              Information with Respect to Executive
            Officers and Directors of the Undersigned 

		Schedule I to Schedule 13D is amended, in pertinent 

part, as follows:

          The following sets forth as to each of the executive 
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

	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. 





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





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

     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







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-IDEX CORP                                               
                                                                                
GABELLI ASSET MANAGEMENT COMPANY INTERNATIONAL ADVISORY                      
SERVICES  LTD                                                                  
      
        2/03/97              500              SPLIT    
 
GABELLI FUNDS, INC.                                                   
               THE GABELLI VALUE FUND,INC.                             
            2/03/97              4,750              SPLIT    
               THE GABELLI SMALL CAP GROWTH FUND                               
                  
2/03/97            25,000              SPLIT    
               THE GABELLI EQUITY TRUST,INC.                                    
                                 2/03/97          138,000              SPLIT    
                                 1/07/97              2,000-          39.9487 
   
                                12/31/96           20,000-          39.3612    
                                12/30/96             6,000-          39.2195    
                                12/26/96                800-          38.9487  
  
                                12/23/96                200-          38.9487  
  
               THE GABELLI ASSET FUND                                           
                                   2/03/97        170,000              SPLIT    
                                12/31/96             3,000-          39.4487    
          GAMCO INVESTORS, INC.                                                 
                                 2/10/97             1,500           25.7750    
                                 2/10/97             3,000-           25.7750  
  
                                 2/03/97           14,500              SPLIT    
          GAMCO INVESTORS, INC.                                                 
                                 2/21/97           21,250-           25.2500    
                                 2/21/97             7,000-           25.2643  
  
                                 2/21/97           15,000-             *DO      
                                 2/20/97             2,000            25.3750  
  
                                 2/14/97              250-           25.5000    
                                 2/14/97             4,000            25.3750  
  
                                 2/12/97             4,000            25.3750  
  
                                 2/10/97             2,000-           25.7750  
  
                                 2/10/97             1,000            25.7750  
  
                                 2/07/97              750-           25.3333    
                                 2/06/97             1,000            23.3750  
  
                                 2/06/97             1,000-           25.3750  
  
                                 2/05/97             1,000-           23.3750  
  
                                 2/03/97         653,908              SPLIT    
                                 2/03/97             2,500-           25.2250  
  
                                 1/31/97              500-           38.0000    
                                 1/29/97             2,000-           38.2500  
  
                                 1/24/97              700-           39.1964    
                                 1/23/97             2,500-           39.6000 
   
                                 1/16/97              750-           39.4583   
                                     28 
                                                                            

    
                                                                                
					 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                                               
                                                                                
          GAMCO INVESTORS, INC.                                                 
                                 1/15/97            2,000-           39.2500    
                                 1/14/97               250-           39.0000 
   
                                 1/14/97            1,500-           38.7500    
                                 1/07/97               250-           40.0000 
		         12/31/96                500-           39.3750    
                              12/31/96             1,050-             *DO      
                              12/27/96           10,000-           38.9713    
                              12/27/96             7,500-             *DO      
                              12/27/96             1,750-           38.6964    
                              12/26/96           10,000-             *DO      
                                                                                
                                                                                
          

















	(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.  									29