5 ms·
>...just some simple emitter followers with half-rail bias to maximize dynamic range of the buffer, and cap isolation to stop any nasty clicking or popping from
by creeble 11y ago
>...just some simple emitter followers with half-rail bias to maximize dynamic range of the buffer, and cap isolation to stop any nasty clicking or popping from circuit switching.
Yeah, I don't think that's what the caps are for...
- cushychicken 11y agoOn the input side? Absolutely! That 2.2M/330nF combo is a really low value highpass filter to keep any DC adjustment transients from a level mismatch out of the audio chain, which would result in one of those nasty loud "pops" you hear when you unplug a circuit. It's also serving to set the DC bias point of the input transistor without loading it down from the 2.2M pulldown.
- creeble 11y agoOn the latter part we agree.
- cushychicken 11y agoWell, what am I missing here? Don't leave me in suspense! :)