Hello All, I have a 1962 Ampeg Reverberocket on the bench. It came in with no power, no output. The customer bought it from an estate sale and plugged it in as soon as they got home. Sure enough, the supply filter cap can had a few open caps in it. I changed all the caps and serviced the sockets and pots. Changed the power cord to a 3 prong as well. The tubes are original 5Y3, 6V6 (2), 6SN7 (4). My tube tester is on the fritz and can only test for shorts. I now have output but it is low and a bit distorted. When I swap the pre tubes around the volume varies in loudness but never reaches full volume. Although the sound changes a bit when swapping tubes around, I don't believe it to be a tube issue. I cannot find a schematic with pin-out voltages anywhere on this amp. Any thoughts or experiences?