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blowing main fuse on Peavey Valve King 112 50
Posted: Sat Aug 02, 2014 11:35 am
by Turd Ferguson
A friend brought me a Peavy valve King to check out for him it had no power. the first thing I did is checked the fuse and it was blown, I pulled the power tubes and still blew main 3A fuse. I checked all diodes with a meter in Diode mode the D206, D207, D208, D209 1N4003 Diodes ( all are still soldered to the board) and I am getting a reading on both sides of the diodes none of the other diodes check this way would you say these are bad ones?
Re: blowing main fuse on Peavey Valve King 112 50
Posted: Sat Aug 02, 2014 2:09 pm
by Wattever
It sounds to me like a good place to start.
As unpleasant as it is on those, there's not much you can do to them without pulling the board anyhow, so I would pull it, unsolder them, and check them out of circuit.
The one I worked on (212 but very similar) had an OP tube (one of the original Ruby's) that would short after a half hour or so of runinng. Probably not the trouble on yours, but just somethihg to consider.
BTW, Peavey has GREAT support, and any weekday i've tried to get a schematic from them, I usually have it in my inbox in less than an hour.
Good luck!