13D Filing: Gerst Capital, LLC and Microwave Filter Co Inc (MFCO)

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EXHIBIT B

January 29, 2018

Board of Directors

c/o Robert Andrews, Chairman

Microwave Filter Company, Inc.

6743 Kinne Street

East Syracuse, NY 13057

Dear Mr. Andrews,

I generally agree with the sentiments expressed in Zeff
Capital’s letter dated January 19, 2018.

If the company decides not to pursue Mr. Zeff’s
offer, then it is long past time for the board to include outsiders with material “skin in the game”. If the company
declines to be purchased, I propose that I be invited to join the board of directors as soon as practically possible.


My technical background, wireless industry experience, and financial expertise qualify me to become an effective, active and contributing
member of Microwave Filter Company’s board.

Regards,

Greg Gerst, CFA

Follow Microwave Filter Co Inc (OTCMKTS:MFCO)

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