Hey, I noticed my engl screamer 50 combo was sounding a bit flabby and weak at a jam, and I've just realised that one of the power valves isn't lighting up anymore at all. Is this just a faulty valve or is it something wrong with the actual amp? I've ordered a new set of JJ tubes anyway, but I'm worried that I'll put them in and it won't be fixed!! Also, could I have damaged the amp at all by playing it with one valve? Any help is much appreciated.
It'll just be a faulty valve, nothing to worry about once you replace it.