3 ms·
>diode-to-photoresistor optocouplers The crude (but wonderful sounding) type like they have in vintage Fender tube amps are used to effect the signal, not pass
by fuzzfactor 4y ago
>diode-to-photoresistor optocouplers
The crude (but wonderful sounding) type like they have in vintage Fender tube amps are used to effect the signal, not pass the entire signal.
Can't read the article but I assume these Audio Optocouplers are intended to pass the entire signal in an acceptable way.
I don't think they would be very good for T & M use either unless you were desperate for isolation.
I found great use for the regular 4-legged kind of precision non-audio optos, to isolate the physical relay logic from the audio power supply for much lower noise floor under high-gain channel-switching applications.
- squarefoot 4y ago> The crude (but wonderful sounding) type like they have in vintage Fender tube amps are used to effect the signal, not pass the entire signal. Yes, I was referring to the use as variable resistors in compressor circuits; the sound wasn't affected at all but the slow attack-release induced to the dynamics contributed to that particular character in vintage guitar amplifiers.