Tube Amp Archive

Thanks for your reply. I suspected hk breakdown but i think i was clinging to the hope that it was something less expensive. Its a fun amp to use but i'm none to sure if its really worthwhile to replace the output valves and wait for the next failure. I find the overvoltage in this area to be a prob...

Hi The 6v6 is a regulator for the screen supply and its been replaced. On switch on you get signal for prehaps 10 seconds which diminishes and is replaced by a loud speaker damaging hum so yeah it is heat related. The photos are indeed before filter cap replacement;i've also replaced all the electro...

Yeah,i've swapped that one out for a new one along wth the 6v6 voltage regulator ,preamp valves and drivers.Exactly the same result.

Hi Been reading this off and on for a while but now cant remember my original name and password;so have reregistered. I have a Maxim head,built in Melbourne in the early seventies.2 x KT88 cathode bias.When i got this the original GEC KT88s were smashed so were replaced with JJ's.Also i replaced all...