Does anyone know where I can find a Novatron 440 plus schematic or perhaps a similar model. I’m talking about the power pack. My issue is I bought a used one some time ago and the variable power switch doesn’t do anything. Every setting produces the same wattage. This makes sense since I opened it up to look at it, because the way it’s wired, it won’t do anything. The switch is basically wired out to bypass everything regardless of its setting. I’m thinking the previous owner had it repaired by someone who didn’t really know what they were doing, and just rewired it for one setting just to get it working.
So if no one has a schematic, does anyone have a picture of how the switch is supposed to be wired or has someone worked on these before and have an idea how these are supposed to vary the wattage? I’m guessing it probably used some bleed resistors, but of what value? I’d like to get it rewired back to factory defaults, but I don’t think it would be worth sending it in. I could likely get a new one for less money. Plus, I already replaced the capacitors myself, meaning I have enough money sunk into this as it is.
And before anyone brings up the “you’ll kill yourself” routine, I’ve got decades of experience around high voltage electronics. I used to design and repair tube amps and also have experience working on giant industrial equipment, so I know all about the dangers of working around caps this large and how to protect myself.
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