07-08-2016, 03:31 PM
I wouldn't change anything unless I knew it needed it. So I guess A, but given the relative newness of it, I'd be tempted to lean towards C.
Some electrolytic capacitors might be tired by now (easy to check), but the condition of the valves will depend on the use, and the "soundness" of the original design. Without a valve tester, it's harder to be sure about the condition of the valves. If this was hi-fi, you could measure harmonic distortion, but distortion is part of the deal with guitar amps...
Some electrolytic capacitors might be tired by now (easy to check), but the condition of the valves will depend on the use, and the "soundness" of the original design. Without a valve tester, it's harder to be sure about the condition of the valves. If this was hi-fi, you could measure harmonic distortion, but distortion is part of the deal with guitar amps...
