Marshall reverb 12 model 5205

[Mark Hennessy]

I can't speak for others, but until you've answered the questions and done the tests in post #5, I can't advise any more. Aside from clarifying that the pictures in post #1 were not yours, you haven't given us any more information to chew over.

I discussed why ZD2 and 3 run hot in post #8. But the tests in post #5 will should tell us if they are OK.