SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 6)*

                       TRANSACT TECHNOLOGIES INCORPORATED
                                (Name of Issuer)

                                  COMMON STOCK
                         (Title of Class of Securities)

                                    89291810
                                 (CUSIP Number)


                                 Seth M. Lukash
                             c/o Tridex Corporation
                                 61 Wilton Road
                               Westport, CT 06880
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)


                                October 14, 1998
             (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 to this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(b) (3) or (4), check the following box [ ].

Note: Six copies of this statement, including all exhibits, should be filed with
the  Commission.  See Rule  13d-1(a) for other  parties to whom copies are to be
sent.

*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
disclosures provided in a prior cover page.

The  information  required  on the  remainder  for 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).

CUSIP No. 89291810

1)   Names of  Reporting  Persons  and Social  Security  Number:  Seth M. Lukash
     ###-##-####

2)   Check the Appropriate Box if a Member of a Group (See Instructions)

     (a)  N/A 
     (b)  N/A

3)   SEC Use Only

4)   Source of Funds:  All of the  shares  owned by the  reporting  person  were
     acquired  in  a  distribution  by  Tridex  Corporation  ("Tridex")  to  its
     stockholders on March 31, 1997 of approximately one (1) share of the Issuer
     for each share of Tridex owned by such stockholder.

5)   Check 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: 190,269 Common Shares

8)   Shared Voting Power: N/A

9)   Sole Dispositive Power: 190,269 Common Shares

10)  Shared Dispositive Power: N/A

11)  Aggregate  Amount  Beneficially  Owned by Each  Reporting  Person:  190,269
     Common Shares

12)  Check if the Aggregate Amount in Row (11) Excludes Certain Shares: N/A

13)  Percent of Class Represented by Amount in Row (11): 3.09%

14)  Type of Reporting Person: IN

Item 1.    Security and Issuer

     The Statement of Seth M. Lukash on Schedule 13D dated February 25, 1998, as
amended and supplemented by Amendment No. 1 dated March 12, 1998,  Amendment No.
2 dated March 13, 1998,  Amendment  No. 3 dated March 24, 1998,  Amendment No. 4
dated  September 16, 1998, and Amendment No. 5 dated October 23, 1998 in respect
of the common  stock  $0.01 par value per share  ("Common  Stock")  of  Transact
Technologies  Incorporated (the "Issuer") whose principal  executive offices are
located at 7 Laser  Lane,  Wallingford,  Connecticut  06492,  is hereby  further
amended and supplemented as follows:

Item 5.    Interest in Securities of the Issuer

Item 5 is hereby amended and supplemented as follows:

     "On October 13, 14 and 15,  1998,  the  reporting  person sold an aggregate
335,050 shares of Common Stock of the Issuer in four block sales as set forth in
the table below.  The 200,000  shares sold on October 14 were sold to the Issuer
in a  broker-to-broker  block trade. All of the shares of Common Stock sold were
maintained by the reporting person's broker in an account,  which included other
securities  owned by the  reporting  person,  and  constituted  with such  other
securities,  collateral for borrowing by the reporting  person from said broker.
Following such sales,  the reporting person ceased to be the beneficial owner of
more than five percent of the outstanding  shares of Common Stock of the Issuer,
based upon 6,166,300 shares of Common Stock  outstanding as of July 31, 1998, as
reported in the Issuer's report on Form 10-Q for the quarterly period ended June
27, 1998.

       Sale Date            Number of Shares           Average Price Per Share
     October 13, 1998             7,900                        $3.000
     October 14, 1998            82,000                         3.171875
     October 14, 1998           200,000                         3.750
     October 15, 1998            45,150                         3.09375"

 
                                    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: October 26, 1998                           /s/ Seth M. Lukash           
                                                  Seth M. Lukash