SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549



                                  SCHEDULE 13G/A
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                                (AMENDMENT NO. 8)


                                  BEL FUSE INC.
             ------------------------------------------------------
                                (NAME OF ISSUER)


                 CLASS B COMMON STOCK,  $.10 PAR VALUE PER SHARE
             ------------------------------------------------------
                         (TITLE OF CLASS OF SECURITIES)


                                    077347300
             ------------------------------------------------------
                                 (CUSIP NUMBER)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

[ ]  Rule 13d-1(b)

[ ]  Rule 13d-1(c)

[ ]  Rule 13d-1(d)

The  remainder  of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any  subsequent  amendment  containing  information  which  would  alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
notes).




- - --------------------------------------------------------------
  1   NAME OF REPORTING PERSONS
      S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

      EQSF ADVISERS, INC.

      (EIN 13-3354359)

- - --------------------------------------------------------------
- - --------------------------------------------------------------
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
       (a)  [  ]
       (b)  [  ]
- - --------------------------------------------------------------
- - --------------------------------------------------------------
  3   SEC USE ONLY

- - --------------------------------------------------------------
- - --------------------------------------------------------------
  4   CITIZENSHIP OR PLACE OF ORGANIZATION

                   NEW YORK CORPORATION

- - --------------------------------------------------------------
- - --------------------------------------------------------------
                   5 SOLE VOTING POWER

                           447,400
   NUMBER OF     ---------------------------------------------
                 ---------------------------------------------
     SHARES        6  SHARED VOTING POWER
  BENEFICIALLY
    OWNED BY               NONE
                 ---------------------------------------------
                 ---------------------------------------------
      EACH         7  SOLE DISPOSITIVE POWER
   REPORTING
     PERSON                679,700

                 ---------------------------------------------
                 ---------------------------------------------
      WITH        8   SHARED DISPOSITIVE POWER

                           NONE
- - --------------------------------------------------------------
- - --------------------------------------------------------------
 9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
      PERSON

           679,700
- - --------------------------------------------------------------
- - --------------------------------------------------------------
 10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
      CERTAIN SHARES*
             [    ]

- - --------------------------------------------------------------
- - --------------------------------------------------------------
 11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

           8.25%
- - --------------------------------------------------------------
- - --------------------------------------------------------------
 12   TYPE OF REPORTING PERSON*

           IA
- - --------------------------------------------------------------




- - --------------------------------------------------------------
  1   NAME OF REPORTING PERSONS
      S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

      M.J. WHITMAN ADVISERS, INC.

      (EIN 13-3686379)

- - --------------------------------------------------------------
- - --------------------------------------------------------------
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
       (a)  [  ]
       (b)  [  ]
- - --------------------------------------------------------------
- - --------------------------------------------------------------
  3   SEC USE ONLY

- - --------------------------------------------------------------
- - --------------------------------------------------------------
  4   CITIZENSHIP OR PLACE OF ORGANIZATION

                              NEW YORK CORPORATION

- - --------------------------------------------------------------
- - --------------------------------------------------------------
                  5 SOLE VOTING POWER

                              174,400
   NUMBER OF     ---------------------------------------------
                 ---------------------------------------------
     SHARES        6  SHARED VOTING POWER
  BENEFICIALLY
    OWNED BY                  NONE
                 ---------------------------------------------
                 ---------------------------------------------
      EACH         7  SOLE DISPOSITIVE POWER
   REPORTING
     PERSON                   183,825
                 ---------------------------------------------
                 ---------------------------------------------
      WITH        8   SHARED DISPOSITIVE POWER

                              NONE
- - --------------------------------------------------------------
- - --------------------------------------------------------------
 9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
      PERSON

         183,825
- - --------------------------------------------------------------
- - --------------------------------------------------------------
 10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
      CERTAIN SHARES*
             [    ]

- - --------------------------------------------------------------
- - --------------------------------------------------------------
 11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         2.23%
- - --------------------------------------------------------------
- - --------------------------------------------------------------
 12   TYPE OF REPORTING PERSON*

         IA
- - --------------------------------------------------------------




- - --------------------------------------------------------------
  1   NAME OF REPORTING PERSONS
      S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

           MARTIN J. WHITMAN

- - --------------------------------------------------------------
- - --------------------------------------------------------------
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
        (a)  [  ]
        (b)  [  ]
- - --------------------------------------------------------------
- - --------------------------------------------------------------
  3   SEC USE ONLY

- - --------------------------------------------------------------
- - --------------------------------------------------------------
  4   CITIZENSHIP OR PLACE OF ORGANIZATION

           USA
- - --------------------------------------------------------------
- - --------------------------------------------------------------
                   5 SOLE VOTING POWER

   NUMBER OF               NONE  (SEE ITEM 4)
                 ---------------------------------------------
                 ---------------------------------------------
                   6 SHARED VOTING POWER
     SHARES
                           NONE
  BENEFICIALLY
    OWNED BY
                 ---------------------------------------------
                 ---------------------------------------------
      EACH         7  SOLE DISPOSITIVE POWER

   REPORTING               NONE  (SEE ITEM 4)
                 ---------------------------------------------
                 ---------------------------------------------
  PERSON WITH     8   SHARED DISPOSITIVE POWER

                           NONE
- - --------------------------------------------------------------
- - --------------------------------------------------------------
 9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
      PERSON

           -0-    (SEE ITEM 4)
- - --------------------------------------------------------------
- - --------------------------------------------------------------
 10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
      CERTAIN SHARES*
             [  ]

- - --------------------------------------------------------------
- - --------------------------------------------------------------
 11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

           -0-
- - --------------------------------------------------------------
- - --------------------------------------------------------------
 12   TYPE OF REPORTING PERSON*

           IN
- - --------------------------------------------------------------



ITEM 1.

     (A) NAME OF ISSUER:

         Bel Fuse (the "Issuer").

     (B) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES OR,IF NONE, RESIDENCE:

         206 Van Vorst Street, Jersey City, NJ 07302

ITEM 2.

     (A) NAME OF PERSON FILING:

     This schedule is being jointly filed by EQSF Advisers,  Inc. ("EQSF"), M.J.
Whitman  Advisers,  Inc.  ("MJWA") and Martin J.  Whitman,  the Chief  Executive
Officer of EQSF and Chief Investment  Officer of MJWA and controlling  person of
EQSF and MJWA.  (EQSF,  MJWA and Martin J.  Whitman are  sometimes  collectively
referred to hereinafter as "Filer").  Attached hereto as an exhibit is a copy of
the joint Schedule 13G filing agreement among the reporting persons.

     (B) ADDRESS OF PRINCIPAL BUSINESS OFFICE:

         The address of the principal  executive  office of
EQSF,  MJWA and Mr.  Whitman  is:  767  Third  Avenue,  New
York, New York 10017-2023.

     (C) CITIZENSHIP:

         The  citizenship  or place  of  organization  of each of the  reporting
persons is as follows:

         EQSF

         New York State Corporation.

         MJWA

         New York State Corporation.

         MARTIN J. WHITMAN

         United States Citizen.

     (D) TITLE OF CLASS OF SECURITIES:

         Common Stock, $.10 par value per share.

     (E) CUSIP NUMBER:

         077347300

ITEM 3. IF THIS  STATEMENT  IS  BEING  FILED  PURSUANT  TO  RULES  13D-1(B),  OR
13D-2(B), CHECK WHETHER THE PERSON FILING IS A:

         (E) Investment  Adviser  registered under section 203 OF THE INVESTMENT
ADVISERS ACT OF 1940 (EQSF and MJWA).

ITEM 4.  OWNERSHIP.

         (a) & (b) EQSF  beneficially owns 679,700 shares, or 8.25% of the class
of securities of the issuer.  MJWA beneficially owns 183,825 shares, or 2.23% of
the class of securities of the issuer.

         (c)    (i) EQSF: 447,400
                    MJWA: 174,400

               (ii) Not applicable.

              (iii) EQSF: 679,700
                    MJWA: 183,825

               (iv) Not applicable.

     Mr. Whitman disclaims beneficial ownership of all such shares.

ITEM 5.  OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.

         Not applicable.


ITEM 6.  OWNERSHIP  OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

     Third Avenue Small-Cap Value Fund, an investment  company  registered under
the Investment Company Act of 1940, has the right to receive dividends from, and
the proceeds from the sale of 245,600 of the shares  reported by EQSF,  Quintara
Small Cap Value Fund,  an investment  company  registered  under the  Investment
Company Act of 1940, has the right to receive  dividends  from, and the proceeds
from the sale of  1,500 of the  shares  reported  by EQSF,  Third  Avenue  Value
Portfolio of the WRL Series Fund, an  investment  company  registered  under the
Investment Company Act of 1940, has the right to receive dividends from, and the
proceeds  from the sale of  39,400  of the  shares  reported  by EQSF,  American
Express  Partners Small Cap Value Fund, an investment  company  registered under
the Investment Company Act of 1940, has the right to receive dividends from, and
the  proceeds  from the sale of 216,500 of the shares  reported  by EQSF,  Third
Avenue  Variable  Portfolio  of  the  Third  Avenue  Variable  Series  Trust  an
investment  company registered under the Investment Company Act of 1940, has the
right to receive  dividends  from,  and the proceeds from the sale of 150,900 of
the shares reported by EQSF, American Express Partners Variable Annuity Fund, an
investment  company registered under the Investment Company Act of 1940, has the
right to receive dividends from, and the proceeds from the sale of 15,800 of the
shares reported by EQSF, and Integrity  Life/Legends Third Avenue Value Fund, an
Investment  company registered under the Investment Company Act of 1940, has the
right to receive dividends from, and the proceeds from the sale of 10,000 of the
shares  reported  by EQSF.  Various  clients  for whom MJWA  acts as  investment
advisor have the right to receive  dividends  from, and the proceeds of the sale
of, the shares reported by MJWA.

ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE
        SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY.

         Not Applicable.

ITEM 8.  IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.

         Not applicable.

ITEM 9.  NOTICE OF DISSOLUTION OF GROUP.

         Not applicable.

ITEM 10. CERTIFICATION.

         By  signing  below I  certify  that,  to the best of my  knowledge  and
belief, the securities referred to above were acquired in the ordinary course of
business  and were not acquired for the purpose of and do not have the effect of
changing or  influencing  the control of the issuer of such  securities and were
not acquired in connection  with or as a participant in any  transaction  having
such purposes or effect.




                                    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.

                              July 10, 2002
                           ---------------------------
                              (Date)




                           EQSF ADVISERS, INC.

                           BY:/S/ MARTIN J. WHITMAN
                              ------------------------
                              Martin J. Whitman
                              Chairman and Chief Executive Officer


                           M.J. WHITMAN ADVISERS, INC.

                           BY:/S/  MARTIN J. WHITMAN
                              ----------------------
                              Martin J. Whitman
                              Chairman and Chief Investment Officer



                              /S/  MARTIN J. WHITMAN
                              -----------------------
                              Martin J. Whitman, President









                              Exhibit 1



                             JOINT FILING AGREEMENT

     In  accordance  with Rule 13d-1 (f) under the  Securities  Exchange  Act of
1934,  as amended,  the  undersigned  hereby  agree to the joint filing with all
other Reporting Entities (as such term is defined in the Schedule 13G) on behalf
of each of them of a statement on Schedule 13G  (including  amendments  thereto)
with respect to the Class B Common Stock,  $.10 par value per share, of Bel Fuse
Inc.,  and that this  Agreement be included as an Exhibit to such joint  filing.
This Agreement may be executed in any number of counterparts  all of which taken
together shall constitute one and the same instrument.

     IN WITNESS WHEREOF, the undersigned hereby execute this Agreement this 10th
day of July, 2002.
                                          EQSF ADVISERS, INC.

                                          By:/s/ MARTIN J. WHITMAN
                                          --------------------------
                                          Martin J. Whitman
                                          Chairman and Chief Executive Officer


                                          M.J. WHITMAN ADVISERS, INC.

                                          By:/s/ MARTIN J. WHITMAN
                                          --------------------------
                                          Martin J. Whitman
                                          Chairman and Chief Investment Officer

                                          /s/   MARTIN J. WHITMAN
                                          --------------------------
                                           Martin J. Whitman