PREFERRED_SQUELCH

Published:2009/7/16 2:41:00 Author:Jessie | From:SeekIC

Used in sensitive receivers having agc, to suppress objectionable increase in noise output when no signal is present, as when receiving intermittent transmissions. Uses d-c amplifier that is added to grid circuit of first audio stage to bias it beyond cutoff and there by silence it until usable signal arrives.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol.1, Electron Tube Circuits, 1963, PC 64, p 64-2.



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