I think thats it! After going back and forth trying the power cord in both directions, one side causes it to trip the breaker after about 5 minutes (it may also be loosely related when I try to tune into higher fm stations... but I didn't try too much for my breakers sake).
Is this a problem that needs further research, or should I just put a proper plug on the power cord so it can only go in correctly?
You need to find the fault. With C25 and C28 gone, the only thing left is the mains transformer. Maybe that has poor insulation, which breaks down when it warms up. Or the line cord itself.
Looking at the schematic, any idea what transformer I would have to order? I see 55-13, but not really sure if thats what its stepping up or down to... I guess I could always take it out and measure what its putting out, but if I remember correctly, stated ratings are typically lower than what the transformers put out right?
55-13 is probably a part number. It clearly has a 6.3V heater secondary - you can add up the heater current. I'm not sure what the HT/B+ secondary needs to be, but someone else on here (or elsewhere) may know. Or just measure it.
- Status
- Not open for further replies.