SECURITIES AND EXCHANGE COMMISSION
                     WASHINGTON, D.C.  20549
                       Amendment No. 1 to
                            FORM S-6

 For Registration Under the Securities Act of 1933 of Securities
       of Unit Investment Trusts Registered on Form N-8B-2

A.   Exact Name of Trust:             The First Trust Combined Series 275

B.   Name of Depositor:               FIRST TRUST PORTFOLIOS L.P.

C.   Complete Address of Depositor's  1001 Warrenville Road
     Principal Executive Offices:     Lisle, Illinois  60532

D.   Name and Complete Address of
     Agents for Service:              FIRST TRUST PORTFOLIOS L.P.
                                      Attention:  James A. Bowen
                                      Suite 300
                                      1001 Warrenville Road
                                      Lisle, Illinois  60532

                                      CHAPMAN & CUTLER
                                      Attention: Eric F. Fess
                                      111 West Monroe Street
                                      Chicago, Illinois  60603

E.   Title of Securities
     Being Registered:                An indefinite number of
                                      Units pursuant to Rule
                                      24f-2 promulgated under
                                      the Investment Company Act
                                      of 1940, as amended.

F.   Approximate Date of Proposed
     Sale to the Public:              ____ Check if it is
                                      proposed that this filing
                                      will become effective on
                                      _____ at ____ p.m.
                                      pursuant to Rule 487.

     The registrant hereby amends this Registration Statement  on
such  date  or  dates as may be necessary to delay its  effective
date  until  the registrant shall file a further amendment  which
specifically  states  that  this  Registration  Statement   shall
thereafter  become effective in accordance with Section  8(a)  of
the  Securities  Act of 1933 or until the Registration  Statement
shall  become  effective on such date as the  Commission,  acting
pursuant to said Section 8(a), may determine.



              Preliminary Prospectus Dated August 26, 2002

                   The First Trust Combined Series 275


10,000 Units                            (A Unit Investment Trust)

     The  attached  final Prospectus for a prior Series of  the  Fund  is
hereby used as a preliminary Prospectus for the above stated Series.  The
narrative information and structure of the attached final Prospectus will
be  substantially  the  same  as that of the final  Prospectus  for  this
Series.  Information with respect to pricing, the number of Units,  dates
and summary information regarding the characteristics of securities to be
deposited in this Series is not now available and will be different since
each   Series  has  a  unique  Portfolio.   Accordingly  the  information
contained  herein with regard to the previous Series should be considered
as  being  included  for informational purposes  only.   Ratings  of  the
securities in this Series are expected to be comparable to those  of  the
securities deposited in the previous Series.

     A  registration statement relating to the units of this Series  will
be  filed  with the Securities and Exchange Commission but  has  not  yet
become  effective.  Information contained herein is subject to completion
or  amendment.   Such  Units may not be sold nor  may  offer  to  buy  be
accepted  prior to the time the registration statement becomes effective.
This Prospectus shall not constitute an offer to sell or the solicitation
of  an offer to buy nor shall there be any sale of the Units in any state
in  which  such  offer, solicitation or sale would be unlawful  prior  to
registration  or  qualification under the securities  laws  of  any  such
state.  (Incorporated herein by reference is the final prospectus for The
First Trust Combined Series 274 (Registration No. 333-22621) as filed  on
August  15, 2002, which shall be used as preliminary prospectus  for  the
current series of the Fund.)


                           MEMORANDUM


            Re:  The First Trust Combined Series 275

     As   indicated   in   our  cover  letter  transmitting   the
Registration  Statement  on Form S-6 and other  related  material
under  the  Securities  Act of 1933 to the Commission,  the  only
difference of consequence (except as described below) between The
First  Trust Combined Series 274, which is the current fund,  and
The  First  Trust Combined Series 275, the filing of  which  this
memorandum accompanies, is the change in the series number.   The
list  of  bonds comprising the Fund, the evaluation,  record  and
distribution  dates and other changes pertaining specifically  to
the  new series, such as size and number of Units in the Fund and
the  statement  of condition of the new Fund, will  be  filed  by
amendment.


                            1940 Act


                      Forms N-8A and N-8B-2

     These forms were not filed, as the Form N-8A and Form N-8B-2
filed  in respect of The First Trust of Insured Municipal  Bonds,
Series  1  (File  No. 811-2541) related also  to  the  subsequent
series of the Fund.


                            1933 Act


                           Prospectus

     The  only  significant changes in the  Prospectus  from  the
Series  274 Prospectus relate to the series number and  size  and
the  date and various items of information which will be  derived
from and apply specifically to the bonds deposited in the Fund.





               CONTENTS OF REGISTRATION STATEMENT

Item A. Bonding Arrangements of Depositor

        First  Trust  Portfolios, L.P. is covered by  a  Brokers'
        Fidelity  Bond,  in the total amount of  $2,000,000,  the
        insurer  being National Union Fire Insurance  Company  of
        Pittsburgh.

Item B. This   Registration  Statement  comprises  the  following
        papers and documents:

        See "Exhibit Index" on page S-5.


                               S-1


                           SIGNATURES

     Pursuant to the requirements of the Securities Act of  1933,
the  Registrant, The First Trust Combined Series  275,  has  duly
caused this Amendment No. 1 to the Registration Statement  to  be
signed   on  its  behalf  by  the  undersigned,  thereunto   duly
authorized,  in  the Village of Lisle and State  of  Illinois  on
August 26, 2002.

                              THE FIRST TRUST COMBINED SERIES 275
                                        (Registrant)

                              By: FIRST TRUST PORTFOLIOS, L.P.
                                  (Depositor)



                              By  Robert M Porcellino
                                  Senior Vice President


                              S-2


     Pursuant to the requirements of the Securities Act of  1933,
this  Amendment  to the Registration Statement  has  been  signed
below  by  the following person in the capacity and on  the  date
indicated:

       NAME                TITLE*                 DATE

David J. Allen             Director           )
                           of The Charger     )
                           Corporation, the   )  August 26, 2002
                           General Partner of )
                           First Trust        )
                           Portfolios, L.P.   )

Judith M. Van Kampen       Director           )
                           of The Charger     )  Robert M. Porcellino
                           Corporation, the   )  Attorney-in-Fact**
                           General Partner of )
                           First Trust        )
                           Portfolios, L.P.   )

Karla M. Van Kampen-Pierre Director           )
                           of The Charger     )
                           Corporation, the   )
                           General Partner of )
                           First Trust        )
                           Portfolios, L.P.   )

David G. Wisen             Director           )
                           of The Charger     )
                           Corporation, the   )
                           General Partner of )
                           First Trust        )
                           Portfolios, L.P.   )


       *     The title of the person named herein represents  his
       or  her  capacity  in  and  relationship  to  First  Trust
       Portfolios, L.P., Depositor.

       **    An  executed copy of the related power  of  attorney
       was  filed with the Securities and Exchange Commission  in
       connection with the Amendment No. 1 to Form S-6 of FT  597
       (File  No.  333-76518) and the same is hereby incorporated
       herein by this reference.

                               S-3



                       CONSENTS OF COUNSEL

     The  consents  of counsel to the use of their names  in  the
Prospectus  included  in  this  Registration  Statement  will  be
contained   in  their  respective  opinions  to   be   filed   as
Exhibits 3.1, 3.2, 3.3 and 3.4 of the Registration Statement.


                CONSENT OF DELOITTE & TOUCHE LLP

     The  consent of Deloitte & Touche LLP to the use of its name
and  to the reference to such firm in the Prospectus included  in
this Registration Statement will be filed by amendment.


         CONSENT OF SECURITIES EVALUATION SERVICE, INC.

     The  consent of Securities Evaluation Service, Inc.  to  the
use  of  its  name in the Prospectus included in the Registration
Statement is filed as Exhibit 4.1 to the Registration Statement


CONSENT OF STANDARD & POOR'S RATINGS GROUP, A DIVISION OF MCGRAW-
                           HILL, INC.

     The  consent of Standard & Poor's Ratings Group, A  Division
of  McGraw-Hill,  Inc. to the use of its name in  the  Prospectus
included in this Registration Statement will be filed as  Exhibit
4.2 to the Registration Statement.


                               S-4

                          EXHIBIT INDEX

1.1    Form  of  Standard Terms and Conditions of Trust  for  The
       First  Trust  Combined  Series 145 and  subsequent  Series
       effective  October 16, 1991, among Nike  Securities  L.P.,
       as  Depositor, United States Trust Company of New York, as
       Trustee,   Securities   Evaluation   Service,   Inc.,   as
       Evaluator,  and Nike Financial Advisory Services  L.P.  as
       Portfolio   Supervisor  (incorporated  by   reference   to
       Amendment  No. 1 to Form S-6 [File No. 33-3289]  filed  on
       behalf  of The First Trust Combined Series 145). Effective
       June  27, 2002, Nike Securities L.P. changed its  name  to
       First Trust Portfolios, L.P.

1.1.1* Form  of Trust Agreement for Series 275 among First  Trust
       Portfolios,  L.P., as Depositor, JPMorgan Chase  Bank,  as
       Trustee,   Securities   Evaluation   Service,   Inc.,   as
       Evaluator,  and  First Trust Advisors L.P.,  as  Portfolio
       Supervisor.

1.2    Copy  of Certificate of Limited Partnership of First Trust
       Portfolios,  L.P. (incorporated by reference to  Amendment
       No.  1 to Form S-6 [File No. 33-42683] filed on behalf  of
       The First Trust Special Situations Trust, Series 18).

1.3    Copy   of   Amended   and  Restated  Limited   Partnership
       Agreement  of  First Trust Portfolios, L.P.  (incorporated
       by  reference to Amendment No. 1 to Form S-6 [File No. 33-
       42683]   filed  on  behalf  of  The  First  Trust  Special
       Situations Trust, Series 18).

1.4    Copy   of   Articles  of  Incorporation  of  The   Charger
       Corporation,  General Partner of First  Trust  Portfolios,
       L.P.,  Depositor (incorporated by reference  to  Amendment
       No.  1 to Form S-6 [File No. 33-42683] filed on behalf  of
       The First Trust Special Situations Trust, Series 18).

1.5    Copy  of  By-Laws  of  The  Charger  Corporation,  General
       Partner   of  First  Trust  Portfolios,  L.P.,   Depositor
       (incorporated by reference to Amendment No. 1 to Form  S-6
       [File  No.  33-42683] filed on behalf of The  First  Trust
       Special Situations Trust, Series 18).

1.6    Master  Agreement  Among  Underwriters  (incorporated   by
       reference  to  Amendment No. 1 to Form S-6 [File  No.  33-
       43289]  filed  on  behalf  of  The  First  Trust  Combined
       Series 145).

                               S-5

2.1    Copy of Certificate of Ownership (included in Exhibit  1.1
       filed  herewith  on  page  2 and  incorporated  herein  by
       reference).

3.1*   Opinion  of  counsel  as to legality of  securities  being
       registered.

3.2*   Opinion  of  counsel as to Federal income  tax  status  of
       securities being registered.

3.3*   Opinion  of  counsel to New York tax status of  securities
       being registered.

3.4*   Opinion of counsel as to advancement of funds by Trustee.

4.1*   Consent of Securities Evaluation Service, Inc.

4.2*   Consent of Standard & Poor's Ratings Group, A Division  of
       McGraw-Hill, Inc.

6.1    List  of  Directors  and Officers of Depositor  and  other
       related   information  (incorporated   by   reference   to
       Amendment No. 1 to Form S-6 [File No. 33-42683]  filed  on
       behalf  of  The  First  Trust  Special  Situations  Trust,
       Series 18).

7.1      Power  of  Attorney executed by the Directors listed  on
         page S-3 of this Registration Statement (incorporated by
         reference to Amendment No. 1 to Form S-6 [File No.  333-
         76518] filed on behalf of FT 597.


_________________
*  To be filed by amendment.

                               S-6