Metro 50w - mains fuse keeps blowing
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page361
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Metro 50w - mains fuse keeps blowing
Need help! I was able to bias and test the amp - then after about 30 minutes of playing, the mains fuse blew - and now it keeps blowing. Removed power and preamp tubes, but the mains fuse still keeps blowing (HT fuse does not blow) when I power on (amp is on standby) ...any ideas as to what may be causing this? My fear is I have a blown PT and the fuse is just doing its job...finally I have an Arrow DPST for the power and a Carling SPST for the standby switch - defintely wired correctly.
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OnTheFritz
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Re: Metro 50w - mains fuse keeps blowing
I had a similar situation, thinking it was the PT. Threw in a back up PT, same problem. Turned out to be a dodgy bridge rectifier that failed.
"I don't like country music, but I don't mean to denigrate those who do. And for the people who like country music, denigrate means 'put down' " - Bob Newhart
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page361
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Re: Metro 50w - mains fuse keeps blowing
Bridge rectifier tested fine...ugh