PHOTOCELLS_PROVIDE_NOISE_FREE_AUDIO_KEYING

Published:2009/7/20 11:30:00 Author:Jessie | From:SeekIC

Photoresistors R5 and R6 isolate control function from signal circuit to avoid switching transients. S1 may be replaced by automatic pulsing circuit.-A. Martens, Noise-Free Keying Circuit, Electronics, 35:13, p 53.



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