thanks! this is my first go with mercury iron. My personal amps I am happy to use hammond, heyboer, and edcor; but I have to admit this princeton is impressing me (please understand there is zero ego in that opinion). I also built a tweed deluxe with a soursound output transformer that sounds very good to my ears, despite tweed being my least favorite fender era.ryland wrote: ↑Thu Jun 16, 2022 6:58 amMan, that's great! I just spent a couple weeks bringing my '64 Princeton back up to snuff. The bias diode had blown out, so I rebuilt the bias circuit and replaced the cap can (which was bulging). I bought the amp in '98 with a blown speaker...as I was working on it, I realized that the output transformer looked like potting had leaked out and lacquered it on one side and the bottom. It has worked all these years, but never sounded like other examples I've heard. I replaced it with a Mercury Magnetics one. I'm not sure that there's a real difference, I may swap the original back in and give it more of a test...hexes wrote: ↑Mon Jun 13, 2022 3:47 pmthe princeton reverb lives! i have to redo the fuse and power switch wiring. mojo’s chassis designs are not great, and this is based off their cuts and punches. that said, as messy as it looks, it’s very quiet. tremolo is very intense and can move at a glacial pace. reverb needed some work. princetons get too cavernous too fast, so a log pot was used, with an added ‘dwell’ control
i love this amp. the added midrange control does some great things.
I wonder what would cause the lacquer to spill out. have you attempted to measure that transformer for failures?