As we bought a huge batch of quartz crystals and sorted them in part #0, found the replacement data in part #1, we now may assume all crystals to be equal. This is part #2, the calculation of the filter components. Part #3 will then build and measure this thing.

The calculations are inspired by the paper Design and Realization of Crystal Band Pass Filter Using Discrete Crystal Resonators by Satish Nandanwar, Mrs. Anjana Patel, Surinder Singh. Space Applications Center, ISRO, Ahmedabad, Gujarant, India. International conference on Communication and Signal Processing, April 3-5, 2013.

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