2125_Hz_LOW_PASS

Published:2009/7/3 4:09:00 Author:May | From:SeekIC

Used with AFSK keyer to convert 2125-Hz square wave to sine wave by removing third and fifth harmonics. All three coils are toroids, with its two windings in series for 88 mH and in parallel for 23 mH.-L.J.Fox,Dodge That Hurricane!,73 Magazine,Jan. 1978, p 62-69.



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