Exhibit 31.1

CERTIFICATION

I, Carl F. Fahrenkrug, Chief Executive Officer of Microwave Filter Company,
Inc. certify that:

1. I have reviewed this Form 10-K/A of Microwave Filter Company, Inc.;

2. Based on my knowledge, this annual report on Form 10-K/A 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 annual report on Form 10-K/A;

3. The registrant's other certifying officer(s) and I are responsible for
   establishing and maintaining disclosure controls and procedures (as defined
   in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and we
   have:

   a) designed such disclosure controls and procedures, or caused such
      disclosure controls and procedures to be designed under our supervision,
      to ensure that material information relating to the registrant,
      including its consolidated subsidiaries, is made known to us by others
      within those entities, particularly during the period in which this
      annual report on Form 10-K/A is being prepared;

   b) evaluated the effectiveness of the registrant's disclosure controls and
      procedures and presented in this report our conclusions about the
      effectiveness of the disclosure controls and procedures, as of the end
      of the period covered by this report based on such evaluation; and

   c) disclosed in this annual report on Form 10-K/A any change in the
      registrant's internal control over financial reporting that occurred
      during the registrant's most recent fiscal quarter (the registrant's
      fourth fiscal quarter in the case of an annual report) that has
      materially  affected, or is reasonably likely to materially affect, the
      registrant's internal control over financial reporting; and

4. The registrant's other certifying officer(s) and I have disclosed, based on
   our most recent evaluation of internal control over financial reporting, to
   the registrant's auditors and the audit committee of the registrant'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 registrant'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.




Date:  April 5, 2005                              /s/ Carl F. Fahrenkrug

                                                      Carl F. Fahrenkrug


                                                                   Exhibit 31.2

CERTIFICATION

I, Richard L. Jones, Chief Financial Officer of Microwave Filter Company, Inc.
certify that:

1. I have reviewed this Form 10-K/A of Microwave Filter Company, Inc.;

2. Based on my knowledge, this annual report on Form 10-K/A 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 annual report on Form 10-K/A;

3. The registrant's other certifying officer(s) and I are responsible for
   establishing and maintaining disclosure controls and procedures (as defined
   in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and we
   have:

   a) designed such disclosure controls and procedures, or caused such
      disclosure controls and procedures to be designed under our supervision,
      to ensure that material information relating to the registrant,
      including its consolidated subsidiaries, is made known to us by others
      within those entities, particularly during the period in which this
      annual report on Form 10-K/A is being prepared;

   b) evaluated the effectiveness of the registrant's disclosure controls and
      procedures and presented in this report our conclusions about the
      effectiveness of the disclosure controls and procedures, as of the end
      of the period covered by this report based on such evaluation; and

   c) disclosed in this annual report on Form 10-K/A any change in the
      registrant's internal control over financial reporting that occurred
      during the registrant's most recent fiscal quarter (the registrant's
      fourth fiscal quarter in the case of an annual report) that has
      materially afected, or is reasonably likely to materially affect, the
      registrant's internal control over financial reporting; and

4. The registrant's other certifying officer(s) and I have disclosed, based on
   our most recent evaluation of internal control over financial reporting, to
   the registrant's auditors and the audit committee of the registrant'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 registrant'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.




Date:  April 5, 2005                              /s/ Richard L. Jones

                                                      Richard L. Jones