ADDvantage Technologies Group, Inc. to Present at the Roth Capital Partners 17th Annual Growth Stock Conference.

DANA POINT, Calif. -- ADDvantage Technologies Group, Inc. (AMEX:AEY) will be presenting on February 23, 2005 at the Roth Capital Partners 17th Annual Growth Stock Conference. David Chymiak, Chairman and Ken Chymiak, President and CEO of ADDvantage, will provide information on the Company's operations and financial achievements and will be available to respond to appropriate questions. ADDvantage Technologies Group, Inc. supplies the cable television (CATV) industry with a comprehensive line of system-critical network equipment and hardware, and nationwide technical repair. The company's products are used to acquire, distribute and protect the broad range of communications signals carried on fiber optic, coaxial cable and wireless distribution systems. These products are sold to customers who provide an array of communications services, including television, high-speed data (Internet) and telephony, to single-family dwellings, apartments and institutions such as hospitals, prisons, universities, schools, cruise ships and others.

ADDvantage owns and operates four subsidiaries, including TULSAT, headquartered in Broken Arrow, Okla., with offices in Texas, Georgia and Arizona; NCS Industries based in Warminster, Pa.; ComTech located in Sedalia, Mo.; and Lee Enterprise based in Deshler, Neb.

TULSAT Corp. is a Scientific-Atlanta Master Distributor for certain legacy products and distributes most of SA's other products. TULSAT has been designated an authorized third-party Scientific-Atlanta repair center for selected products. NCS Industries distributes Motorola broadband products. The other subsidiaries distribute Standard, Coming-Gilbert, Blonder-Tonque, RL Drake, Quintech and Videotek products.

ADDvantage continues to upgrade its product offerings to stay in the forefront of the communications broadband technology revolution. The company also continues to expand its core product lines in headend equipment, fiber products and distribution gear to maintain the ability to provide electronics equipment needed to build smaller cable systems and much of the equipment needed in larger systems for the most efficient operation and highest profitability in high-density areas.

The company also continues to purchase surplus equipment from cable operators and others that result from system upgrades or warehouse overstock. Each of the company's six locations operates service centers specializing in Motorola, Magnavox, Scientific-Atlanta and Alpha Power Supplies repairs. ADDvantage continues to augment its products and services to maintain and expand its customer base in North America, South America, Europe and the Far East, while it focuses on developing relationships with the larger multiple cable operators and other companies that purchase similar products.

For more information, please visit the corporate web site at www.addvantagetech.com or contact Dee Cooper, Controller, directly at 918-251-9121.

ADDvantage Technologies Group, Inc.

1605 E. Iola - Broken Arrow, Oklahoma 74012

About the Roth Capital Partners 17th Annual Growth Stock Conference

This conference will feature more than 220 leading growth companies in sectors such as Technology, Healthcare, Financial Services and Consumer Products. A concentrated, two-day program will allow institutional investors to meet the executives from a select group of companies that have been hand picked by the Roth Capital Partners research team. 40% of this year's participating companies are presenting here for the first time. The average market cap of this year's presenters is around $330 million, with the median around $185 million. This closely mirrors the average and median market cap for the proposed Russell Microcap(TM) Index which is expected to be around $277 million and $176 million respectively.

To register for this conference, please contact your Roth sales representative at 800-678-9147. Please note that this conference is by invitation only.

For more information about the conference visit: http://www.rothcp.com/2005%20DP%20Conference%20Web%20Site/ Roth%20DP.html?content=home (Due to its length, this URL may need to be copied/pasted into your Internet browser's address field. Remove the extra space if one exists.)