Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: TerryD on March 10, 2017, 09:50:03 am
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Remind me never- never- never to put $300 worth of improvements in one of these crap PCB board amps again. Now instead of a 400 dollar piece of crap I have a 700 dollar piece of crap.
Sold to a friend who is a player. He stuck the cord in the back when transporting. I warned him not to. Broke all the power tube pin sodder joints on the PCB board.
Here is what I've done with the little knowledge I have.
OUtput transformer spitting blue sparks. I replaced that.
AFTER THAT... I saw that the pin sodder joints were all cracked.
Re soddered them.
Fired it up and no sound. I bang the amp and the reverb tank sounds through loud and clear. Does that mean "hopefully" I didn't crap out the new Hammond transformer???
Any Ideas where to go from here.
I've appreciated all help in the past almost more than words can say.
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Hmmm. Blue sparks? From where? Where the OT connects to the power tubes? Was there a short?
I believe pictures are going to help a lot more than your description of the problem. Power cord breaking solder joints... that raises a lot of confusion/questions...
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Hoffman sells a nice turret board with conversion instructions if you are considering replacing that pcb.
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first, check your voltages at power and preamp tubes : no voltage no sound.
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Don't feel alone. I think a large percentage of intermediate builders like myself has spent way too much to admit on Blues Junior Amps.