And a happy conclusion with the B25B, I received and installed the replacement OPT from Fliptops (the fit and finish are great by the way), and bingo we are up and running! Lots of power and a really nice tone! Should last another 50 years!
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Ampeg B25B-- No Output! Next troubleshooting step?
- Thread starter oldsmobuick
- Start date
Good going! That's a very clean amp, the new transformer looks right at home.
Now if you want to have some fun, disassemble the old output transformer and look for how and where it failed.
Now if you want to have some fun, disassemble the old output transformer and look for how and where it failed.
One suggestion. When mounting a cement block wire wound resistor like the one indicated, rotate it ninety degrees so that the bottom is not against the printed circuit board. When these resistors fail, they often flame on the side with the adhesive filling. By pointing it sideways, there is less chance that the board is damaged.
