PV Triumph low gain

[nashvillebill]

No it's not independently switchable. You're right its pins 3,5, and 7 on S1. Relay S1 is 4PDT, when you click on the channel select to go to Clean, then relay S1 shifts, it opens the 3- 5 connection and 3 goes to 7 which is not connected to anything. When 3 and 5 are connected the tone stack is bypassed, and a high filter (?) is engaged--the Thick EQ setting. There's a jumper somewhere that eventually goes back to C62 that can be snipped and defeats the Thick preset.

As the schematic is drawn, all the relays are shown in the Ultra/Crunch setting, which IIRC is the default if there is no footswitch.

[drewl]

Which is what I thought, but doesn't explain my problem.

Well, I know how I can fix it, to redesign V2a's output circuit.