Exhibit 31.1

                                  CERTIFICATION

I, Kenneth A. Chymiak, certify that:

     1. I have reviewed this amendment to annual report on Form 10-KSB/A of
        ADDvantage Technologies Group, Inc, (the "Company");

     2. Based on my knowledge, this report does not contain any untrue
        statement of a material fact or omit to state a material fact necessary
        to make the statements made, in light of the circumstances under which
        such statements were made, not misleading with respect to the period
        covered by this report;

     3. Based on my knowledge, the financial statements, and other financial
        information included in this report, fairly present in all material
        respects the financial condition, results of operations and cash flows
        of the Company as of, and for, the periods presented in this report;

     4. I am responsible for establishing and maintaining disclosure controls
        and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-
        15(e)) for the Company and have;

       a. Designed such disclosure controls and procedures, or caused such
          disclosure controls and procedures to be designed under my
          supervision, to ensure that material information relating to the
          Company, including its consolidated subsidiaries, is made known to me
          by others within those entities, particularly during the period in
          which this report is being prepared;

       b. Evaluated the effectiveness of the Company's disclosure controls and
          procedures and presented in this report my conclusions about the
          effectiveness of the disclosure controls and procedures, as of the
          end of the period covered by this report, based on my evaluation; and

       c. Disclosed in this report any change in the Company's internal control
          over financial reporting that occurred during the Company's most
          recent fiscal quarter that has materially affected, or is reasonably
          likely to materially affect, the Company's internal control over
          financial reporting; and

     5. I have disclosed, based on my most recent evaluation of internal
        control over financial reporting, to the Company's auditors and the
        audit committee of Company's board of directors (or persons performing
        the equivalent functions):

       a. All significant deficiencies and material weaknesses in the design or
          operation of internal control over financial reporting which are
          reasonably likely to adversely affect the Company's ability to
          record, process, summarize and report financial information; and

       b. Any fraud, whether or not material, that involves management or other
          employees who have a significant role in the Company's internal
          control over financial reporting.


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Date: February 25, 2004

                                          By: /s/ Kenneth A. Chymiak
                                          -----------------------------
							Kenneth A. Chymiak,
                                          Principal Executive Officer and
                                          Principal Financial Officer