EXHIBIT 31.2
                    Certification of the Principal Financial
           Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under
                      the Securities Exchange Act of 1934,
      as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002


I, David O'Neil, certify that:

1.       I have  reviewed this  quarterly  report on Form 10-QSB of Espey Mfg. &
         Electronics Corp. (the "registrant").

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 registrant as of, and for, the periods presented in this report;

4.       The  registrant's  other  certifying  officer 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 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,  is made known to us by others  within the
                  entity, particularly during the period in which this report 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  report  any  change  in the  registrant's
                  internal control over financial reporting that occurred during
                  the   registrant's   most  recent  fiscal   quarter  that  has
                  materially  affected,  or is  reasonably  likely to materially
                  affect,  the  registrant's  internal  control  over  financial
                  reporting; and

5.       The registrant's other certifying  officer and I have disclosed,  based
         on our most recent  evaluation  of  internal  controls  over  financial
         reporting,  to the registrant's auditors and the audit committee of the
         registrant's board of directors:

         (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
                  registrant's internal control over financial reporting.

Date: May 10, 2007

                                                 /s/ David O'Neil
                                                 ---------------------------
                                                 David O'Neil, Treasurer and
                                                 Principal Financial Officer


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