At a fairly high rate I have lost fuses in my amp recently. Is this a problem with bad power coming in? Or possibly does this indicate a problem with any tubes going bad?
bias can be the main problem. what tubes your amp is using? i can tell you what tube pin you should check for grid voltage in order to have a correct bias before you place the new tubes there. also i can direct or perform an installation of the bias measurement circuit almost on any tube amp with potentiometers for a neccessary adjustement when needed.
I have a CJ MV-50. It was blowing fuses, I think it was the Svetlana EL34's. I replaced them with old Mullards that BARELY tested good and have not had a problem. So I think maybe you should try different tubes. The Mullards also sound better.
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