David E. Chymiak

DAVID E. CHYMIAK has been the Chairman of the Board of ADDvantage
Technologies Group, Inc. since October 1999. Mr. Chymiak has been the
President and a Director of TULSAT since 1985. He and his brother,
Kenneth A. Chymiak, acquired TULSAT in 1985 and owned 50% of the
outstanding capital stock in the company. Mr. Chymiak acquired a cable
television franchise and built a system in Steelville, Missouri in 1973.
He attended the University of Missouri-Rolla and Lawrence Technical. Mr.
Chymiak also engages in certain real estate investments through Chymiak
Investments LLC, and certain other entities.