Technology Research (TRCI) SC 13D/A TECHNOLOGY RESEARCH / LOEB ARBITRAGE MANAGEMENT ownership change

UNITED STATES

SECURITIES & EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D/A

Under the Securities Exchange Act of 1934

(Amendment No. 1)*

Technology Research Corporation

(Name of Issuer)

Common Stock, $0.51 par value

(Title of Class of Securities)

878727304

(CUSIP Number)

Alexander H. McMillan, Esq.

c/o Loeb Capital Management

61 Broadway, New York, N.Y. 10006 (212) 483-7069

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

March 4, 2011

(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 §§240,13d-1(e), 240.13d-1(f) or 240.13d-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 §240.13d-7 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 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).

CUSIP No.			878727304
1. Name of Reporting Person			Loeb Arbitrage Management LP
I.R.S. Identification No. of Above Person
2. Check the Appropriate Box if a Member of a Group			(a) [X]
			(b) [  ]
3. SEC Use Only
4. Source of Funds			WC, OO
5. Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)			[  ]
6. Citizenship or Place of Organization			Delaware
Number of Shares Beneficially Owned by Each Reporting Person With
	7. Sole Voting Power	-0-
	8. Shared Voting Power	47,181
	9. Sole Dispositive Power	-0-
	10. Shared Dispositive Power	47,181
11. Aggregate Amount of Beneficially Owned by Each Reporting Person				47,181
12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares				[ X ]
13. Percent of Class Represented by Amount in Row (11)				0.71%
14. Type of Reporting Person				IA

CUSIP No.			878727304
1. Name of Reporting Person			Loeb Arbitrage Fund
I.R.S. Identification No. of Above Person
2. Check the Appropriate Box if a Member of a Group			(a) [X]
			(b) [  ]
3. SEC Use Only
4. Source of Funds			WC, OO
5. Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)			[  ]
6. Citizenship or Place of Organization			New York
Number of Shares Beneficially Owned by Each Reporting Person With
	7. Sole Voting Power	-0-
	8. Shared Voting Power	342,875
	9. Sole Dispositive Power	-0-
	10. Shared Dispositive Power	342,875
11. Aggregate Amount of Beneficially Owned by Each Reporting Person				342,875
12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares				[  ]
13. Percent of Class Represented by Amount in Row (11)				5.17%
14. Type of Reporting Person				PN

CUSIP No.			878727304
1. Name of Reporting Person			Loeb Arbitrage Offshore Partners, Ltd.
I.R.S. Identification No. of Above Person
2. Check the Appropriate Box if a Member of a Group			(a) [X]
			(b) [  ]
3. SEC Use Only
4. Source of Funds			WC, OO
5. Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)			[  ]
6. Citizenship or Place of Organization			Cayman Islands
Number of Shares Beneficially Owned by Each Reporting Person With
	7. Sole Voting Power	-0-
	8. Shared Voting Power	163,112
	9. Sole Dispositive Power	-0-
	10. Shared Dispositive Power	163,112
11. Aggregate Amount of Beneficially Owned by Each Reporting Person				163,112
12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares				[  ]
13. Percent of Class Represented by Amount in Row (11)				2.46%
14. Type of Reporting Person				CO

Item 1.	Security and Issuer
The name of the issuer is Technology Research Corporation, a Florida Corporation (the “Issuer”).  The address of the Issuer’s principal executive offices is 5250-140th Avenue North, Clearwater, FL 33760.  This Schedule 13D relates to the Issuer’s Common Stock, $0.51 par value (the “Shares”).
Item 2.	Identity and Background
(a) This Schedule 13D is filed by the following Reporting Persons: (i) Loeb Arbitrage Management LP (“LAM”), a Delaware limited partnership and registered investment adviser, with respect to shares of Common Stock purchased for the accounts of customers of LAM as to which it has investment discretion. (ii) Loeb Arbitrage Fund (“LAF”), a New York limited partnership, with respect to shares of Common Stock purchased for its own account. (iii) Loeb Arbitrage Offshore Partners, Ltd. (“LAOP”), a Cayman Islands exempted company, with respect to shares of Common Stock purchased for its own account.  Loeb Offshore Management LP, (“LOM”), a Delaware limited partnership, is the registered investment adviser to LAOP. (b) The address of the principal business office of each of the Reporting Persons is c/o Loeb Capital Management, 61 Broadway, New York, New York 10006. (c) The principal business of LAM and LOM (d/b/a Loeb Capital Management) is to serve as investment manager to a variety of private investment funds and separately managed accounts and to control the trading in securities by these private investment funds and separately managed accounts.  Loeb Management Holding LLC (“LMH”), a Delaware limited liability company, is the General Partner of LAM and LOM.  LMH is owned jointly by Loeb Holding Corporation and LB Partners, L.P.  Gideon J. King is the President and Chief Executive Officer of Loeb Management Holding LLC as well as LAM and LOM. (d) None of the entities or individuals named in this Item 2 has, within the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors). (e) None of the entities or individuals named in this Item 2 has, during the last five years, been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding been or are subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violations with respect to such laws. (f) Gideon J. King is a United States citizen.

Item 3.		Source and Amount of Funds or Other Consideration
The Reporting Persons acquired ordinary Shares in margin accounts maintained with J.P. Morgan Clearing Corp.
Item 4.		Purpose of Transaction
LAM and LOM, doing business as Loeb Capital Management (“Loeb”), have acquired ordinary Shares for investment purposes on behalf of private funds and accounts they manage. Loeb reserves the right, consistent with applicable law, to acquire additional securities of the Issuer (whether through open market purchases, block trades, private acquisitions, tender or exchange offers or otherwise). Loeb intends to review its investment in the Issuer on a continuing basis and may engage in discussions with management or the Board of Directors of the Issuer concerning the business and future plans of the Issuer. Depending on various factors, including, without limitation, the Issuer’s financial position and investment strategy, the price levels of the ordinary Shares of the Issuer, conditions in the securities markets and general economic and industry conditions, Loeb may in the future take such actions with respect to its investment in the Issuer as it deems appropriate including, without limitation, seeking Board representations, making proposals to the Issuer concerning the capitalization of the Issuer, purchasing additional ordinary Shares and other securities of the Issuer, selling some or all of its ordinary Shares, engaging in short selling of or any hedging or similar transaction with respect to the ordinary Shares of the Issuer or changing its intention partially or entirely with respect to any and all matters referred to in Item 4.
Item 5.		Interest in Securities of the Issuer
	(a),(b)	As of the close of business on March 9, 2011, Loeb Capital Management beneficially owned an aggregate of 553,168 shares of Common Stock, representing approximately 8.33% of the shares of Common Stock outstanding.  The percentages used herein are based upon 6,640,484 outstanding Ordinary Shares as reported by the Issuer in its Quarterly Report on Form 10-Q filed by the Issuer on February 9, 2011. Loeb Management Holding LLC, LAM, LOM and Mr. King own directly no shares of Common Stock. Loeb Arbitrage Fund owns 342,875 shares of Common Stock (constituting approximately 5.17% of the shares of Common Stock outstanding). Pursuant to an investment management agreement, LAM maintains investment and voting power with respect to securities held by Loeb Arbitrage Fund as well as for the accounts of customers as to which it has investment discretion and may be deemed to beneficially own 390,056 shares of Common Stock (constituting approximately 5.88% (and inclusive of the 5.17% beneficially owned by Loeb Arbitrage Fund) of the shares of Common Stock outstanding). Pursuant to an investment management agreement, Loeb Offshore Management LP maintains investment and voting power with respect to securities held by LAOP and may be deemed to beneficially own 163,112 of the shares of Common Stock (constituting approximately 2.46% of outstanding shares).

	(c)	The following purchases and sales (-) of Ordinary Shares have been in the past sixty (60) days:
Loeb Arbitrage Management LP (excluding Loeb Arbitrage Fund)
Date			Shares	Average Price
3/9/2011			1744	5.2249
3/4/2011			8149	5.17
2/28/2011			1920	5.25
Loeb Arbitrage Fund
Date			Shares	Average Price
3/4/2011			61496	5.17
2/28/2011			2319	5.25
Loeb Arbitrage Offshore Partners, Ltd.
Date			Shares	Average Price
3/4/2011			29255	5.17
2/28/2011			10061	5.25

(d)	Not applicable.
(e)	Not applicable.

All reported transactions were effected on NASDAQ.

Item 6.	Contracts, Arrangement, Understandings or Relationships with Respect to the Issuer.
	Not Applicable.
Item 7.	Materials to be Filed as Exhibits.
	None.

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.

	LOEB ARBITRAGE MANAGEMENT LP
	By: LOEB MANAGEMENT HOLDING LLC, G.P.
Date:  March 9, 2011	By:_ /s/ Alexander H. McMillan
	Alexander H. McMillan
	Vice President
	LOEB ARBITRAGE FUND
	By: LOEB ARBITRAGE MANAGEMENT LP, G.P.
	By: LOEB MANAGEMENT HOLDING LLC, G.P.
Date:  March 9, 2011

Date:  March 9, 2011

	By:_ /s/ Alexander H. McMillan
		Alexander H. McMillan
		Vice President
		LOEB ARBITRAGE OFFSHORE PARTNERS, LTD.
Date:  March 9, 2011
Date:  March 9, 2011

By:_ /s/ Alexander H. McMillan
	Alexander H. McMillan
	Vice President