I recently bought a Liverpool from Ceriatone (built up) and decided to order and install the transformers myself…pretty big leap for me (got to start somewhere). I bought the transformers from Arlyn at Heyboer, using the ToneSlut specs. Transformers arrived, and after careful review of the layout, and using an express build guide that I found (here, I think) I had the confidence to install the transformers, which I did.
Unfortunately, the amp makes no sound.
A cap job or two, and standard maintenance notwithstanding, I’m no amp builder, and beyond the great care I take to avoid getting whacked by B+ voltage, my expertise in the working of amps drops precipitously. That said, I’ve learned a lot in the last few days.
First, I wired 300v PT secondary (ala Express) instead of the 260. I’m not sure if this destroyed my tubes or damaged anything else. Tubes (especially 3rd EL84) got very red. I tested the tubes in 2 other amps and they seem to work. I had to splice the 260 wires, since I had cut and heat shrunk them, and I worried that that would be a problem, but they seem fine and are supplying 260. The 5v and 300v PT secondary leads are now clipped and insulated w/ heat shrink.
I've gone over and over this (and learning a LOT). Nik at Ceriatone has been a great help, too, but I need to appeal to the experts now. Anybody have any suggestions?
My house mains supply 121.6. The PT secondaries measure 262.1 each. Downstream of the diodes, voltages are all way high. Here is a chart with voltages – all measured with all tubes in:
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