UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE TO

(RULE 14D-100)

Tender Offer Statement Pursuant to Section 14(d)(1) or 13(e)(1) of

the Securities Exchange Act of 1934

TECHNOLOGY RESEARCH CORPORATION

(Name of Subject Company)

CLEARWATER ACQUISITION I, INC.

(Offeror)

COLEMAN CABLE, INC.

(Parent of Offeror)

(Names of Filing Persons)

COMMON STOCK, $0.51 PAR VALUE

(Title of Class of Securities)

878727304

(CUSIP Number of Class of Securities)

Richard N. Burger

Chief Financial Officer

1530 Shields Drive

Waukegan, Illinois 60085

(847) 672-2300

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

and Communications on Behalf of Filing Persons)

Copies to:

James J. Junewicz, Esq.

Winston & Strawn LLP

35 West Wacker Drive

Chicago, IL 60601

(312) 558-5600

CALCULATION OF FILING FEE

Transaction Valuation*	Amount of Filing Fee**
$46,200,693.60	$5,364.00

* Estimated for purposes of calculating the amount of filing fee only. Transaction value was determined based upon the product of (i) 6,416,763 shares of common stock of the subject company, other than those shares owned by Coleman Cable, Inc., Clearwater Acquisition I, Inc. and their affiliates, and (ii) $7.20 per share.

** The filing fee was calculated in accordance with Rule 0-11 under the Securities Exchange Act of 1934 and Fee Rate Advisory #5 for fiscal year 2011, issued December 22, 2010, by multiplying the transaction value by .00011610.

¨ Check box if any part of the fee is offset as provided by Rule 0-11(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

Amount Previously Paid:	Not applicable.	Filing Party:	Not applicable.
Form or Registration No.:	Not applicable.	Date Filed:	Not applicable.

¨ Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer.

Check the appropriate boxes below to designate any transactions to which the statement relates:

þ third-party tender offer subject to Rule 14d-1.

¨ issuer tender offer subject to Rule 13e-4.

¨ going-private transaction subject to Rule 13e-3.

¨ amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results of the tender offer.  ¨

If applicable, check the appropriate box(es) below to designate the appropriate rule provision(s) relied upon:

¨ Rule 13e-4(i) (Cross-Border Issuer Tender Offer)

¨ Rule 14d-1(d) (Cross-Border Third-Party Tender Offer)

This Tender Offer Statement on Schedule TO is filed by Coleman Cable, Inc., a Delaware corporation (“Coleman”), and Clearwater Acquisition I, Inc. (the “Purchaser”), a Florida corporation and a wholly owned subsidiary of Coleman. This Schedule TO relates to the offer by the Purchaser to purchase all outstanding shares of common stock, par value $0.51 per share (together with the associated stock purchase rights, the “Shares”), of Technology Research Corporation, a Florida corporation (“TRC”), that are not already owned by Coleman, the Purchaser or their affiliates at $7.20 per Share, net to the seller in cash, without interest and less any required withholding taxes, upon the terms and subject to the conditions set forth in the Offer to Purchase, dated April 12, 2011 (the “Offer to Purchase”), and in the related Letter of Transmittal, copies of which are attached hereto as Exhibits (a)(1)(i) and (a)(1)(ii), respectively (which, together with any amendments or supplements thereto, collectively constitute the “Offer”).

Items 1 through 9; Item 11.

All information contained in the Offer to Purchase and the accompanying Letter of Transmittal, including all schedules thereto, is hereby incorporated herein by reference in response to Items 1 through 9 and Item 11 in this Schedule TO.

Item 10. Financial Statements.

Not applicable.

Item 12. Exhibits.

(a)(1)(i)	Offer to Purchase dated April 12, 2011.
(a)(1)(ii)	Form of Letter of Transmittal.
(a)(1)(iii)	Form of Notice of Guaranteed Delivery.
(a)(1)(iv)	Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees.
(a)(1)(v)	Form of Letter to Clients for use by Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees.
(a)(1)(vi)	Guidelines for Certification of Taxpayer Identification Number on Substitute Form W-9.
(a)(1)(vii)	Form of Summary Advertisement dated April 12, 2011.
(a)(5)(i)	Press Release Issued by Coleman and TRC, dated April 12, 2011.
(b)	Not applicable.
(d)(1)	Agreement and Plan of Merger, dated as of March 28, 2011, among Coleman, Purchaser and TRC (incorporated by reference to Exhibit 2.1 to Coleman’s Current Report on Form 8-K filed with the SEC on March 29, 2011).
(d)(2)	Tender and Support Agreement, dated as of March 28, 2011, among Coleman, Purchaser and TRC (incorporated by reference to Exhibit 10.1 to Coleman’s Current Report on Form 8-K filed with the SEC on March 29, 2011).
(d)(3)	Mutual Non-Disclosure Agreement, dated as of February 8, 2011, by and between Coleman and TRC (incorporated by reference to Exhibit (e)(3) to TRC’s Schedule 14D-9 filed with the SEC on April 12, 2011).
(g)	Not applicable.
(h)	Not applicable.

SIGNATURE

After due 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: April 12, 2011

COLEMAN CABLE, INC.
By:	/s/ G. Gary Yetman
	Name:	G. Gary Yetman
	Title:	President and Chief Executive Officer

EXHIBIT INDEX

(a)(1)(i)	Offer to Purchase dated April 12, 2011.
(a)(1)(ii)	Form of Letter of Transmittal.
(a)(1)(iii)	Form of Notice of Guaranteed Delivery.
(a)(1)(iv)	Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees.
(a)(1)(v)	Form of Letter to Clients for use by Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees.
(a)(1)(vi)	Guidelines for Certification of Taxpayer Identification Number on Substitute Form W-9.
(a)(1)(vii)	Form of Summary Advertisement dated April 12, 2011.
(a)(5)(i)	Press Release Issued by Coleman and TRC, dated April 12, 2011.
(b)	Not applicable.
(d)(1)	Agreement and Plan of Merger, dated as of March 28, 2011, among Coleman, Purchaser and TRC (incorporated by reference to Exhibit 2.1 to Coleman’s Current Report on Form 8-K filed with the SEC on March 29, 2011).
(d)(2)	Tender and Support Agreement, dated as of March 28, 2011, among Coleman, Purchaser and TRC (incorporated by reference to Exhibit 10.1 to Coleman’s Current Report on Form 8-K filed with the SEC on March 29, 2011).
(d)(3)	Mutual Non-Disclosure Agreement, dated as of February 8, 2011, by and between Coleman and TRC (incorporated by reference to Exhibit (e)(3) to TRC’s Schedule 14D-9 filed with the SEC on April 12, 2011).
(g)	Not applicable.
(h)	Not applicable.