SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549
                                 --------------

                                  SCHEDULE 13D
                                 (RULE 13D-101)

             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
            TO RULE 13D-1(A) AND AMENDMENTS THERETO FILED PURSUANT TO
                                  RULE 13D-2(A)

                                Amendment # 1

                         Technical Communications Corp.
                                 --------------
                                (Name of Issuer)

                    Common Stock, par value $.10 per share
                         (Title of Class of Securities)

                                    878409101
                                    ---------
                                 (CUSIP Number)

                                 Paul D. Sonkin
                           Hummingbird Management, LLC
                           460 Park Avenue, 12th Floor
                            New York, New York 10022
                                212 750-7117
                            ------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                September 15, 2006
                                -----------------
             (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  that is the subject of this Schedule 13D, and is filing
this  schedule  because  of Rule  13d-1(e),  13d-1(f)  or  13d-1(g),  check  the
following box /_/.

     Note.  Schedules  filed in paper format shall include a signed original and
five copies of the schedule, including all exhibits. See Rule 13d-7(b) for other
parties to whom copies are to be sent.



--------
1   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 of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 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. 878409101                13D                        Page 2 of 14 Pages
------------------------                            ----------------------------




================================================================================
     1         NAME OF REPORTING PERSONS S.S. OR
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                           Hummingbird Management, LLC
                               IRS No. 13-4082842
--------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) /x/
--------------------------------------------------------------------------------
     3         SEC USE ONLY

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS
                     OO
--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                     DELAWARE
--------------------------------------------------------------------------------
  NUMBER OF        7      SOLE VOTING POWER
   SHARES
BENEFICIALLY                    149,943
  OWNED BY
    EACH
  REPORTING
 PERSON WITH   -----------------------------------------------------------------
                   8      SHARED VOTING POWER

                               -0-
               -----------------------------------------------------------------
                   9      SOLE DISPOSITIVE POWER

                               149,943
               -----------------------------------------------------------------
                  10      SHARED DISPOSITIVE POWER

                               -0-
--------------------------------------------------------------------------------
     11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                     149,943
--------------------------------------------------------------------------------
     12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
               SHARES                                               / /
--------------------------------------------------------------------------------
     13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                     10.9%
--------------------------------------------------------------------------------
     14        TYPE OF REPORTING PERSON*

                     OO
================================================================================



------------------------                            ----------------------------
CUSIP No. 878409101                13D                        Page 3 of 14 Pages
------------------------                            ----------------------------




================================================================================
     1         NAME OF REPORTING PERSONS S.S. OR
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                                 Paul D. Sonkin
--------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) /x/
--------------------------------------------------------------------------------
     3         SEC USE ONLY

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS
                     OO
--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                     UNITED STATES
--------------------------------------------------------------------------------
  NUMBER OF        7      SOLE VOTING POWER
   SHARES
BENEFICIALLY                    149,943
  OWNED BY
    EACH
  REPORTING
 PERSON WITH   -----------------------------------------------------------------
                   8      SHARED VOTING POWER

                               -0-
               -----------------------------------------------------------------
                   9      SOLE DISPOSITIVE POWER

                               149,943
               -----------------------------------------------------------------
                  10      SHARED DISPOSITIVE POWER

                               -0-
--------------------------------------------------------------------------------
     11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                     149,943
--------------------------------------------------------------------------------
     12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
               SHARES*                                               / /
--------------------------------------------------------------------------------
     13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                     10.9%
--------------------------------------------------------------------------------
     14        TYPE OF REPORTING PERSON

                     OO
================================================================================

 .

------------------------                            ----------------------------
CUSIP No. 878409101                13D                        Page 4 of 14 Pages
------------------------                            ----------------------------




================================================================================
     1         NAME OF REPORTING PERSONS S.S. OR
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                           Hummingbird Capital, LLC
                    (f/k/a Morningside Capital,  LLC)

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

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS
                     OO
--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                     DELAWARE
--------------------------------------------------------------------------------
  NUMBER OF        7      SOLE VOTING POWER
   SHARES
BENEFICIALLY                    149,943
  OWNED BY
    EACH
  REPORTING
 PERSON WITH   -----------------------------------------------------------------
                   8      SHARED VOTING POWER

                               -0-
               -----------------------------------------------------------------
                   9      SOLE DISPOSITIVE POWER

                               149,943
               -----------------------------------------------------------------
                  10      SHARED DISPOSITIVE POWER

                               -0-
--------------------------------------------------------------------------------
     11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                     149,943
--------------------------------------------------------------------------------
     12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
               SHARES                                               / /
--------------------------------------------------------------------------------
     13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                     10.9%
--------------------------------------------------------------------------------
     14        TYPE OF REPORTING PERSON

                     OO
================================================================================


------------------------                            ----------------------------
CUSIP No. 878409101                13D                        Page 5 of 14 Pages
------------------------                            ----------------------------




================================================================================
     1         NAME OF REPORTING PERSONS S.S. OR
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                           Hummingbird Value Fund, L.P.
--------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) /X/
--------------------------------------------------------------------------------
     3         SEC USE ONLY

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS
                     WC
--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                     DELAWARE
--------------------------------------------------------------------------------
  NUMBER OF        7      SOLE VOTING POWER
   SHARES
BENEFICIALLY                   20,183
  OWNED BY
    EACH
  REPORTING
 PERSON WITH   -----------------------------------------------------------------
                   8      SHARED VOTING POWER

                               -0-
               -----------------------------------------------------------------
                   9      SOLE DISPOSITIVE POWER

                               20,183
               -----------------------------------------------------------------
                  10      SHARED DISPOSITIVE POWER

                               -0-
--------------------------------------------------------------------------------
     11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                     20,183
--------------------------------------------------------------------------------
     12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
               SHARES                                               / /
--------------------------------------------------------------------------------
     13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                     1.5%
--------------------------------------------------------------------------------
     14        TYPE OF REPORTING PERSON

                     LP
================================================================================




------------------------                            ----------------------------
CUSIP No. 878409101                13D                        Page 6 of 14 Pages
------------------------                            ----------------------------




================================================================================
     1         NAME OF REPORTING PERSONS S.S. OR
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                           Hummingbird Microcap Value Fund, L.P.
--------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) /X/
--------------------------------------------------------------------------------
     3         SEC USE ONLY

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS
                     WC
--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                     DELAWARE
--------------------------------------------------------------------------------
  NUMBER OF        7      SOLE VOTING POWER
   SHARES
BENEFICIALLY                    14,083
  OWNED BY
    EACH
  REPORTING
 PERSON WITH   -----------------------------------------------------------------
                   8      SHARED VOTING POWER

                               -0-
               -----------------------------------------------------------------
                   9      SOLE DISPOSITIVE POWER

                               14,083
               -----------------------------------------------------------------
                  10      SHARED DISPOSITIVE POWER

                               -0-
--------------------------------------------------------------------------------
     11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                     14,083
--------------------------------------------------------------------------------
     12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
               SHARES*                                               / /
--------------------------------------------------------------------------------
     13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                     1.0%
--------------------------------------------------------------------------------
     14        TYPE OF REPORTING PERSON

                     LP
================================================================================


------------------------                            ----------------------------
CUSIP No. 878409101                13D                        Page 7 of 14 Pages
------------------------                            ----------------------------
   1         NAME OF REPORTING PERSONS S.S. OR
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                           Hummingbird Concentrated Fund, L.P.
--------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) /X/
--------------------------------------------------------------------------------
     3         SEC USE ONLY

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS
                     WC
--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                     DELAWARE
--------------------------------------------------------------------------------
  NUMBER OF        7      SOLE VOTING POWER
   SHARES
BENEFICIALLY                     334

  OWNED BY
    EACH
  REPORTING
 PERSON WITH   -----------------------------------------------------------------
                   8      SHARED VOTING POWER

                               -0-
               -----------------------------------------------------------------
                   9      SOLE DISPOSITIVE POWER

                                334

               -----------------------------------------------------------------
                  10      SHARED DISPOSITIVE POWER

                               -0-
--------------------------------------------------------------------------------
     11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                      334

--------------------------------------------------------------------------------
     12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
               SHARES                                               / /
--------------------------------------------------------------------------------
     13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                     0.0%
--------------------------------------------------------------------------------
     14        TYPE OF REPORTING PERSON

                     LP
================================================================================


------------------------                            ----------------------------
CUSIP No. 878409101                13D                        Page 8 of 14 Pages
------------------------                            ----------------------------
   1         NAME OF REPORTING PERSONS S.S. OR
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                      Tarsier Nanocap Value Fund, L.P.
--------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) /X/
--------------------------------------------------------------------------------
     3         SEC USE ONLY

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS
                     WC
--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                     DELAWARE
--------------------------------------------------------------------------------
  NUMBER OF        7      SOLE VOTING POWER
   SHARES
BENEFICIALLY                     115,343

  OWNED BY
    EACH
  REPORTING
 PERSON WITH   -----------------------------------------------------------------
                   8      SHARED VOTING POWER

                               -0-
               -----------------------------------------------------------------
                   9      SOLE DISPOSITIVE POWER

                                115,343

               -----------------------------------------------------------------
                  10      SHARED DISPOSITIVE POWER

                               -0-
--------------------------------------------------------------------------------
     11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                      115,343

--------------------------------------------------------------------------------
     12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
               SHARES                                               / /
--------------------------------------------------------------------------------
     13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                     8.4%
--------------------------------------------------------------------------------
     14        TYPE OF REPORTING PERSON

                     LP
================================================================================
------------------------                            ----------------------------
CUSIP No. 878409101                13D                        Page 9 of 14 Pages
------------------------                            ----------------------------



     AMENDMENT NO. 1 TO SCHEDULE 13D


         This Amendment No. 1, dated September 19, 2006, to Schedule 13D is
filed by the Reporting Persons and amends Schedule 13D as previously filed
by the Reporting Persons with the Securities and Exchange Commission on
May 2, 2006 (the "Schedule 13D"), relating to the  Common Stock,
par value $0.0001 per share,  of ATechnical Communications Corp, a
Massachusetts Corporation.

Items 3 and 5 of the Schedule 13D are hereby amended and restated, as follows:


ITEM 3    SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

          As of September 18, 2006,  Hummingbird  has caused HVF, Microcap Fund,
Concentrated Fund, and Tarsier Fund to invest approximately $66,343, $45,521,
$1,009, and $356,656 respectively, in the Shares of the Issuer using their
working capital.


ITEM 5    INTEREST IN SECURITIES OF THE ISSUER

          (a) As investment manager of HVF, Microcap Fund, Concentrated Fund,
and Tarsier Fund, Hummingbird may be deemed to have the sole voting and
investment authority over the Shares owned by HVF, Microcap  Fund, Concentrated
Fund, and Tarsier Fund for purposes of Rule 13d-3 under the  Securities
Exchange Act of 1934, as amended  ("Rule  13d-3"),  may be  deemed  to be the
beneficial owner of 149,943  Shares representing  approximately 10.9% of the
outstanding shares of the Issuer (based upon  1,371,691  shares of Common Stock
outstanding as of August 1, 2006  as reported  on Form 10-QSB for the period
ended June 24, 2006. Hummingbird disclaims any beneficial ownership of the
Shares covered by this Statement.

          Mr. Sonkin, as the managing member and control person of Hummingbird,
may be deemed to have the sole voting and  investment  authority over the Shares
beneficially owned by Hummingbird and, for purposes of Rule 13d-3, may be deemed
to be the beneficial owner of 149,943  Shares representing  approximately 10.9%
of the  outstanding shares of the Issuer. Mr. Sonkin disclaims any beneficial
ownership of the Shares covered by this Statement.

------------------------                            ----------------------------
CUSIP No. 878409101                13D                       Page 11 of 14 Pages
------------------------                            ----------------------------

          HC, as the general  partner of each of HVF, Microcap Fund, and
Concentrated Fund, Hummingbird may be deemed to have the sole voting and
investment authority over the Shares owned by HVF, Microcap  Fund, and
Concentrated Fund, for purposes of Rule 13d-3 under the  Securities Exchange
Act of 1934, as amended  ("Rule  13d-3"),  may be  deemed  to be the
beneficial  owner of 149,943  Shares representing  approximately 10.9% of the
outstanding shares of the Issuer (based upon  1,367,057  shares of Common
Stock outstanding s of August 1, 2006  as reported  on Form 10-QSB for the
period  ended June 24, 2006. Hummingbird disclaims any beneficial ownership of
the Shares covered by this Statement.

          HVF is the beneficial owner of 20,183 Shares or 1.5%  of the
outstanding shares of the Issuer.

          Microcap Fund is the beneficial owner of 14,083  Shares or 1.0%
of the outstanding shares of the Issuer.

	  Concentrated Fund is the beneficial owner of 334 Shares or 0.0%
of the outstanding shares of the Issuer.

	  Tarsier Fund is the beneficial owner of 115,343 Shares or 3.7%
of the outstanding shares of the Issuer.


          (c) Hummingbird caused HVF to effect transactions in the Shares during
the past 60 days as set forth below:



                                              NUMBER OF
   DATE              TYPE                      SHARES         PRICE/SHARE
   ----              ----                      ------         -----------
                                                      
9/15/2006	open market purchase		500		3.10



------------------------                            ----------------------------
CUSIP No. 878409101                13D                       Page 12 of 14 Pages
------------------------                            ----------------------------


          Hummingbird caused the Microcap Fund to effect transactions in the
Shares during the past 60 days as set forth below:

                                     NUMBER OF


                                              NUMBER OF
   DATE              TYPE                      SHARES         PRICE/SHARE
   ----              ----                      ------         -----------
                                                      
9/15/2006	open market purchase		500		3.10



          Hummingbird caused the Concentrated Fund to effect no transactions
in the Shares during the past 60 days.


	Hummingbird caused the Tarsier Fund to effect transactions in the
Shares during the past 60 days as set forth below:

                                     NUMBER OF


                                              NUMBER OF
   DATE              TYPE                      SHARES         PRICE/SHARE
   ----              ----                      ------         -----------
                                                      
7/31/2006	open market purchase		3,500		3.307
7/31/2006	open market purchase		1,000		3.300
8/8/2006	open market purchase		1,700		3.250
8/9/2006	open market purchase		2,000		3.250
8/14/2006	open market purchase		3,000		3.280
8/25/2006	open market purchase		6,500		3.250
8/29/2006	open market purchase		3,000		3.150
9/15/2006	open market purchase	       17,500		3.053
9/18/2006	open market purchase		8,000		2.834
9/18/2006	open market purchase	       17,690		2.982






           (d)         Inapplicable.

           (e)         Inapplicable.




ITEM 6   Inapplicable

ITEM 7   Inapplicable

------------------------                            ----------------------------
CUSIP No. 878409101                13D                       Page 13 of 14 Pages
------------------------                            ----------------------------
                                   SIGNATURES

          After reasonable  inquiry and to the best of our knowledge and belief,
we certify that the  information  set forth in this statement is true,  complete
and correct.


Dated: September 19, 2006          HUMMINGBIRD MANAGEMENT, LLC


                                   By: /s/ Paul D. Sonkin
                                       ---------------------------------
                                       Name: Paul D. Sonkin
                                       Title: Managing Member


                                    /s/ Paul D. Sonkin
                                   -------------------------------------
                                   PAUL D. SONKIN



                                   HUMMINGBIRD VALUE FUND, L.P.

                                   By: Hummingbird Capital, LLC

                                   By: /s/ Paul D. Sonkin
                                       ---------------------------------
                                       Name: Paul D. Sonkin
                                       Title: Managing Member

                                   HUMMINGBIRD MICROCAP VALUE
                                   FUND, L.P.

                                   By: Hummingbird Capital, LLC

                                   By: /s/ Paul D. Sonkin
                                       ---------------------------------
                                       Name: Paul D. Sonkin
                                       Title: Managing Member



                                 HUMMINGBIRD CONCENTRATED
                                   FUND, L.P.

                                   By: Hummingbird Capital, LLC

                                   By: /s/ Paul D. Sonkin
                                       ---------------------------------
                                       Name: Paul D. Sonkin
                                       Title: Managing Member


                                 TARSIER NANOCAP VALUE
                                   FUND, L.P.

                                   By: Hummingbird Capital, LLC

                                   By: /s/ Paul D. Sonkin
                                       ---------------------------------
                                       Name: Paul D. Sonkin
                                       Title: Managing Member

                                   HUMMINGBIRD CAPITAL, LLC


                                   By: /s/ Paul D. Sonkin
                                       ---------------------------------
                                       Name: Paul D. Sonkin
                                       Title: Managing Member