EXHIBIT 23.1
                         ESPEY MFG. & ELECTRONICS CORP.
                         Consent of Rotenberg & Co., LLP



            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM




Espey Mfg. & Electronics Corp.
Saratoga Springs, New York


      We  consent  to  the   incorporation  by  reference  in  the  Registration
Statements  (Form S-8)  pertaining  to the 2000 and 2007 Stock  Option  Plans of
Espey Mfg. &  Electronics  Corp.  of our report dated  September  7, 2009,  with
respect to the  financial  statements  and schedules of Espey Mfg. & Electronics
Corp.  included  in its Annual  Report  (Form  10-K) for the year ended June 30,
2009, filed with the Securities and Exchange Commission.


/s/ Rotenberg & Co., LLP

Rotenberg & Co., LLP
Rochester, New York
September 7, 2009




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