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Hi,
I received just some hours ago a Dual Showman I bought off ebay. The amp was sold as recently refurbished by TAD, which probabily is: Sprague caps and TAD brand inside, new power tubes etc.
I took it off the box, connected it, and "vibrato" channel worked ok, while the "normal" made no sound. I tried to lightly poke the preamp tubes, and they seemed to be quite loose in the socket. I tried to push them in firmly, played some more notes and one of them must have moved because a loud rumbling noise was produced.
So I took the head out of the cab, checked if the wires attached to the sockets were ok - and they were - the tightened the sockets' pin holders a bit with a tiny screwdriver. Put the amp back in, plugged the tubes in the sockets, and now as soon as I release the standby switch, a loud WOOOOO noise comes out of the amp. Poking the tubes changes nothing. The power tubes light up normally, and I swapped all preamp tubes with no extent.
any suggestion?
regards,
Maurizio
I received just some hours ago a Dual Showman I bought off ebay. The amp was sold as recently refurbished by TAD, which probabily is: Sprague caps and TAD brand inside, new power tubes etc.
I took it off the box, connected it, and "vibrato" channel worked ok, while the "normal" made no sound. I tried to lightly poke the preamp tubes, and they seemed to be quite loose in the socket. I tried to push them in firmly, played some more notes and one of them must have moved because a loud rumbling noise was produced.
So I took the head out of the cab, checked if the wires attached to the sockets were ok - and they were - the tightened the sockets' pin holders a bit with a tiny screwdriver. Put the amp back in, plugged the tubes in the sockets, and now as soon as I release the standby switch, a loud WOOOOO noise comes out of the amp. Poking the tubes changes nothing. The power tubes light up normally, and I swapped all preamp tubes with no extent.
any suggestion?
regards,
Maurizio
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