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I installed one on a bandmaster for a friend a few years ago, worked fine. They come with trimpots for input and output. I replaced them with...
Looks like a place where things get done right. Cheers
Thank you. I hope I don't have to move, ever.
[ATTACH] I'll tidy up......................................................eventually
You wouldn't happen to know how much current that 5V tap is rated for? I have boxes full of nos soviet 5c3s (5u4) that draw 2.7 to 3.3 amps. I'd...
1202-118 has a 5V secondary for tube rectifier filament supply, however it is not used in JMP models since they use diodes for rectification. I...
[ATTACH] I have a 72, 1986. Came without transformers but had a lot of rat poop and dead bugs. I turned it into a 1987, it's a proper beast now....
As guys said, GZ34 has a voltage drop of around 37 volts. Replacing it with just a diode bridge will result in higher B+ which changes other...
Why not do it yourself? Nice helpful people hang around here.
In my experience, a blown fuse is usually the symptom, not the disease. Blowing it twice and replacing it with higher rating fuse is just asking...
The fixed bias (a fixed negative voltage set by the user, bit counter intuitive) circuit used in guitar amps is pretty solid and a bit primitive....
Hi If other tubes light up and you have high voltage DC (345DC or less depending on year), your mains transformer is fine and your 6.3V filament...
If you're in Europe, you can get good prices on F&T or JJ's from Tube-town.com and thetubeampdoctor.com in Germany, I've shopped from...
In my very limited experience, 5.7V is not a bad filament voltage at all, I rather have them a little starved. Man, you laid some mojo on that...
Old mono PA amps, they are transformer goldmines, I buy them in trunk loads for peanuts here in Iran. The Japanese ones have very good wire wound...
