Exhibit 3.1



|    |                                                       |                                  
|--- | ----------------------------------------------------- | ---------------------------------
|DPC |                                                       | The Commonwealth of Massachusetts
|    | William Francis Galvin                               
|    | Secretary of the Commonwealth                        
|    | One Ashburton Place, Boston, Massachusetts 02108-1512



Articles of
Amendment

(General Laws Chapter 156D, Section 10.06; 950 CMR 113.34)



(1) Exact name of corporation: Technical Communications Corporation



(2) Registered office address: 100 Domino Drive, Concord, MA 01742

(number, street, city or town, state, zip code)



(3) These articles of amendment affect article(s): Article III

(specify the number(s) of article(s) being amended (I-VI))



(4) Date adopted: February 7, 2005

(month, day, year)



(5) Approved by:



(check appropriate box)



| |  ̈ | the incorporators.
| | - | ------------------



| |  ̈ | the board of directors without shareholder approval and shareholder approval was not required.
| | - | ----------------------------------------------------------------------------------------------



| |  ̈ | the board of directors and the shareholders in the manner required by law and the articles of organization.
| | - | -----------------------------------------------------------------------------------------------------------



(6) State the article number and the text of the amendment. Unless contained in the text of
the amendment, state the provisions for implementing the exchange, reclassification or cancellation of issued shares.



Article III is amended to increase the number of authorized shares of Common Stock, $.10 par value, of the Corporation as set forth on the next page hereof.



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To change the number of shares and the par value, * if any, of any type, or to designate a class or series, of stock, or
change a designation of class or series of stock, which the corporation is authorized to issue, complete the following:



Total authorized prior to amendment:



|                  |  |                  |  |        |  |                  |  |           |    
|----------------- |  | ---------------- |  | ------ |  | ---------------- |  | --------- | ---
|WITHOUT PAR VALUE |  | WITH PAR VALUE  
|TYPE              |  | NUMBER OF SHARES |  | TYPE   |  | NUMBER OF SHARES |  | PAR VALUE
|                  |  |                  |  | Common |  | 3,500,000        |  | $         | .10



Total authorized after amendment:



|                  |  |                  |  |        |  |                  |  |           |    
|----------------- |  | ---------------- |  | ------ |  | ---------------- |  | --------- | ---
|WITHOUT PAR VALUE |  | WITH PAR VALUE  
|TYPE              |  | NUMBER OF SHARES |  | TYPE   |  | NUMBER OF SHARES |  | PAR VALUE
|                  |  |                  |  | Common |  | 7,000,000        |  | $         | .10



(7) The amendment shall be effective
at the time and on the date approved by the Division, unless a later effective date not more than 90 days from the date and time of filing is specified: N/A



|* | G.L. Chapter 156D eliminates the concept of par value, however is corporation may specify par value in Article III. See G.L. Chapter 156D, Section 6.21, and tea comments relative
share thereto.
|- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



---

|           |  |                                     
|---------- |  | ------------------------------------
|Signed by: |  | /s/ Carl H. Guild, Jr.              
|           |  | (signature of authorized individual)



|x | Chairman of the board of directors,
|- | -----------------------------------



|x | President,
|- | ----------



| ̈ | Other officer,
|- | --------------



| ̈ | Court-appointed fiduciary,
|- | --------------------------



on this 6thday of May, 2005.



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COMMONWEALTH OF MASSACHUSETTS



William Francis Galvin

Secretary of the Commonwealth

One Ashburton Place, Boston, Massachusetts 02108-1512



Articles of Amendment

(General Laws Chapter 156D, Section 10.06; 950 CMR 113.34)



I hereby certify that upon examination of these articles of amendment, it appears that the provisions of the General Laws relative thereto have been
complied with, and the filing fee in the amount of $100 having been paid, said articles are deemed to have been filed with me this 11 day of May, 2005, at 11:55 a.m./p.m.

|    
|----
|time
|    

Effective date:

(must be within 90 days of date submitted)



WILLIAM FRANCIS GALVIN

Secretary of the Commonwealth



|              |  |                                                                                                                                                                                                           
|------------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|              |  | Filing fee: Minimum filing fee $100 per article amended, stock increases $100 per 100,000 shares, plus $100 for each additional 100,000 shares or any fraction thereof.                                   
|              |  |                                                                                                                                                                                                           
|Examiner      |  |                                                                                                                                                                                                           
|              |  |                                                                                                                                                                                                           
|Name approval |  | TO BE FILLED IN BY CORPORATION Contact
Information:                                                                                                                                                       
|              |  |                                                                                                                                                                                                           
|C             |  | Jennifer G. Ausrotas                                                                                                                                                                                      
|              |  |                                                                                                                                                                                                           
|M             |  | White White & Van Etten LLP                                                                                                                                                                               
|              | 
|              |  | 55 Cambridge Parkway, Cambridge, MA 02142                                                                                                                                                                 
|              | 
|              |  | Telephone: (617)225-6900                                                                                                                                                                                  
|              | 
|              |  | Email: jga@wwvlaw.com                                                                                                                                                                                     
|              | 
|              |  | Upon filing, a copy of this filing will be available at www.sec.state.ma.us/cor. If the document is rejected, a copy of the rejection sheet and rejected document will be available in the
rejected queue.