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Simple VOX circuit

2015-01-11 16:46  
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VOX is a voice controlled switch, used often for microphones replacing the classic switching button. The actuating threshold is set thru the volume potentiometer of the amplifier which command the VOX circuit. TheVOXswitching threshold is 600mV ( on R2 ) and the maximum input voltage must not be higher than 40Vpp.

VOX circuit diagram

simple vox schematic

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