Single Ended Dual Channel Negative Feedback

[mwelch55]

I am almost finished building a single ended dual channel amp.  The amp has two completely separate preamps that doesn't share any of the same circuitry.  I switch between the two using relays.

My question is how to connect the negative feedback?  Can they both get their negative feedback from the same tap or separate taps?  How is this usually accomplished?

Mike

[sluckey]

NFB is usually a power amp function. It's usual to only have one power amp so there's only one NFB loop. If you have something unusual, show us a schematic please.

[jjasilli]

Ditto to a schematic.  In the typical guitar SE Power Amp, NFB is usually fed to the preamp tube that drives the Power Tube(s).  So I think the 2 preamps should drive that last small bottle tube.