Finally fixed a vintage amp that's been sitting on my bench for months

It was a 1972 Fender Twin Reverb that came in with a blown output transformer and a weird hum. I spent maybe 20 hours total on it over three months, waiting on parts and trying different fixes. This week I found a cold solder joint on the phase inverter tube socket that was the real culprit. Got it singing today and the customer was so happy he almost cried. Anyone else have a piece that just needed that one last look to come together?

2 comments

2 Comments

joel_butler1d ago

Those cold solder joints are sneaky little devils.

sandraflores1d ago

Yeah, I used to think they were just a cosmetic thing, like a bad looking joint that still worked. Then I had this old radio that would cut out when it got warm. Took me forever to find it, but there was one joint on a resistor leg that looked okay, just a bit dull. Reflowed that one spot and the thing worked perfectly. Totally changed how I check my work now.