Maybe someone knows what this is ? . Wierd number on the output tubes. 6BM8/ECL 82 . I got it working properly, had a shorted out output tube that almost ruined the amp , was cutting out and blowing caps and heating up the PT. I recapped it and added a external speaker Jack. Seems like 2 class A amps built together into one , one output tube for Tremelo and one output tube for normal, it looks like a push pull el84 but it is not . I think that it may have fried out the Tremelo section, I don't have a 6BM8 output tube to test it with, so I can't be sure if it did, or not , until I get another 6BM8 tube to try it. Just curious to figure out what brand and model this amp is. I'M Not messing with a Unknown Tremelo without a wiring diagram. The tone pot has a square box on it ? I Was wondering what it is ?, says TOBE type D 200v. On it , See pic. No name or number anywhere on the amp itself.