SWITCHABLE_AF_FlLTER

Published:2009/7/3 4:58:00 Author:May | From:SeekIC

Provides wide range of switch-selected capacitor values for varying cutoff frequencies, to permit use of filter for either phone or CW reception. On CW, circuit improves reception by eliminating higher frequencies that are largely interference.-J. J.Schultz,The Quiet Maker, 73 Magazine, March 1974, p 81-84.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/Filter_Circuit/SWITCHABLE_AF_FlLTER.html

Print this Page | Comments | Reading(3)