The Amp Garage

HI, are you still happy with this mod? Where did you mount the pot? I'm really loving the SV20 tones I'm hearing in demos, but it's just too loud for my needs. I am very happy with the mod. I play with it as loud as I can get away with. I have all the windows and door closed in my bedroom and I don...

Was going to link to Marshall forum pic, but you have to be logged in to see it. Here it is. I soldered to pin 5 of the power tubes and used half of a 500k dual ganged pot that I originally got for the Rich II mod. Pin 5 is annotated on the pic. You can see there is more solder there to work with. I...

Corrected my previous post. I mistakenly said soldered the pot wires to the PI when it was actually the power tubes.

Just did the Trainwreck type 3 PPIMV on the SV20H. It’s documented on the Marshall forum with pictures and diagrams. I was going to do the Rich II mod, but the type 3 didn’t require removing any components. I ended up heating the solder on the power tubes pin 5 and sunk the pot wire into it. That wa...