DIODE_SWITCHED_IF_FILTER

Published:2009/7/8 5:06:00 Author:May | From:SeekIC

Used in 1.8－2 MHz communication receiver having wide dynamic range 1N914 diodes select collins mechanical filter F455FD-04 FL3 (400－Hz bandwidth) or F455FD-25 FL4(2.5-kHz bandw)Reverse biasis applied to nonconducting diodes to lesson leakage through switching diodes Filteris located between IF preamρ and main IF strip of receiver Two-part article gives all other circuits of receiver,－D.DeMaw,His Eminence－the Receiver,QST,Part 1－June 1976,p 27－30(Part2－July 1976,p 14－17).



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