Super quick question. Sick of digging around looking for this. Bought a 73 silver face twin reverb. Master volume push/pull. what circuit was used in it? I think 73-75 were the same MV with push/pulls. I have found one that has the master volume push/pull, 100 watt but no label as to which circuit it actually is. After I get it up and running and decided what I think of the tone I may blackface it, but am trying to compare schematics and knowing which I’m using would be great.