I rewired the bias voltage section, and it seems to be working well now. I'm getting -22v when I measure from the output of it to ground, that seems to be right in the range it should be.
I also put one 4.7k power resistor in before the first stage of the power supply, that brought things down a little bit, starting at like 510v, and then 500v, 400 and then 360..
I'm going to go with that for now since it still keeps the plate voltage under the maximum allowed for the preamp tubes.
I plugged my guitar in, and played through the crappy speaker I had hooked up as a load, and it sounded great. Actually really good full sound. The presence control I wired in even seemed to do it's job.
Only two problems.
1) The tone controls don't seem to work very well.. they make very minor adjustments, but also seem to distort the sound depending on where there are.. I'm going to take them right out and rewire them again I think.
2) When I was adjusting either the volume or master volume control as well as holding on to my guitar I got a sharp pulse of a shock. The pots don't have knobs on them, so I was touching the bare metal of the pot, it's also possible that I just brazed the chassis of the amp.
I don't know exactly what happened there. I assume one hand on the ground of the guitar, as well as one hand touching something on the outside of the amp that shouldn't be hot.
I ran through my wiring just now and things look alright.. it's a bit messy, but I really don't see anything touching anything it shouldn't.
Any thoughts on this?
I also put one 4.7k power resistor in before the first stage of the power supply, that brought things down a little bit, starting at like 510v, and then 500v, 400 and then 360..
I'm going to go with that for now since it still keeps the plate voltage under the maximum allowed for the preamp tubes.
I plugged my guitar in, and played through the crappy speaker I had hooked up as a load, and it sounded great. Actually really good full sound. The presence control I wired in even seemed to do it's job.
Only two problems.
1) The tone controls don't seem to work very well.. they make very minor adjustments, but also seem to distort the sound depending on where there are.. I'm going to take them right out and rewire them again I think.
2) When I was adjusting either the volume or master volume control as well as holding on to my guitar I got a sharp pulse of a shock. The pots don't have knobs on them, so I was touching the bare metal of the pot, it's also possible that I just brazed the chassis of the amp.
I don't know exactly what happened there. I assume one hand on the ground of the guitar, as well as one hand touching something on the outside of the amp that shouldn't be hot.
I ran through my wiring just now and things look alright.. it's a bit messy, but I really don't see anything touching anything it shouldn't.
Any thoughts on this?
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