LOW_PASS_PI_SECTION_AF

Published:2009/7/3 5:00:00 Author:May | From:SeekIC

Four-pole doublethrow switch gives choice of 650-Hz cutoff for CW or 2000 Hz for SSB.Filter capacitors are matched Response decreases continuously beyond cutoff frequency,with no loss of attenuation.-E.Noll,Circuits and Techniques,Ham Radio,April 1976,p 40－43.



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