Hi all,
I have a circuit which varies LED intensity with sound level and am interested in replacing the 1.5k electret condenser mic with an optocoupler to allow me to drive the circuit off the tube signal.
Is there an FET optocoupler which could replace the mic in this circuit:
http://lh4.ggpht.com/_WbJ1JcTROqQ/St...g/s800/mic.jpg
and respond to the HV signal from the preamp?
I'll share the circuit when I get it to work
I have a circuit which varies LED intensity with sound level and am interested in replacing the 1.5k electret condenser mic with an optocoupler to allow me to drive the circuit off the tube signal.
Is there an FET optocoupler which could replace the mic in this circuit:
http://lh4.ggpht.com/_WbJ1JcTROqQ/St...g/s800/mic.jpg
and respond to the HV signal from the preamp?
I'll share the circuit when I get it to work
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