May 28, 2009 Halifax Corporation 5250 Cherokee Avenue

Exhibit 10.34

May 28, 2009
Halifax Corporation
0000 Xxxxxxxx Xxxxxx

Pursuant to a subordination agreement dated July 1, 2008 between Textron Financial Corporation and the subordinated debt holders, Research Industries, further assigned on June 29, 2005 to the Arch X. Xxxxxxxx Children’s Trust, the maturity date of the remaining principal balance of $500,000 on the 8% promissory notes plus accrued interest thereon are extended to July 1, 2010.

All other terms and conditions of the notes remain the same.

Dated this 11^th day of June 2009

The Arch X. Xxxxxxxx Children’s Trust

/s/ Xxxxx X. Xxxxxxxx Xxxxx X. Xxxxxxxx, Trustee				/s/ Arch X. Xxxxxxxx Xx., Arch X. Xxxxxxxx, Xx., Trustee
/s/ Xxxx Xxxxxxxx Xxxxxxx Xxxx Xxxxxxxx Xxxxxxx, Trustee				/s/ Xxxx X. Xxxxxx Xxxx X. Xxxxxx Trustee

May 28, 2009
Halifax Corporation
0000 Xxxxxxxx Xxxxxx

Pursuant to a subordination agreement dated July 1, 2008 between Textron Financial Corporation and the subordinated debt holders, Research Industries, further assigned on June 29, 2005 to Xxxxx Xxxxxxxx Xxxxxxxx, the maturity date of the remaining principal balance of $500,000 on the 8% promissory notes plus accrued interest thereon are extended to July 1, 2010.

All other terms and conditions of the notes remain the same.

Dated this 11^th day of June 2009

/s/ Xxxxx Xxxxxxxx Xxxxxxxx  

Xxxxx Xxxxxxxx Xxxxxxxx