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Voice - Activated Switch & Amplifier

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In certain applications, such as transmitter or other communications and control applications, this circuit should be useful. Both audio output and dc output are provided. R9 sets the control threshold.


Parts List:
Component: Value: Datasheet: Qty:
Resistor

100K

Not Available 04
Resistor 1.5M Not Available 01
Resistor 10M Not Available 01
Resistor 500K Not Available 01
Resistor 1.3M Not Available 01
Resistor 10K Pot Not Available 01
Capacitor 0.1 Not Available 01
Capacitor 100 Not Available 01
Capacitor 10 Not Available 01
IC LM346 Available 01