Musicman 2100 RD Power Transformer

[plexi50]

I have a 2100 RD Musicman amp that has a power transformer that gets ultra HOT! After 2 minutes the thermal unit turns the amp off.It does not blow the fuse. It has been re-capped but that has nothing to do with the power transformer. Does it sound like the PT is shot and needs replacing? I have looked around and have not found one as of today. I would think the fuse would blow long before it gets to Volcanic Lava hot! Yes it will cook potatoes as well.

[PRR]

Replace the fuse anyway. Use the right Amps value for your local wall voltage

[shooter]

Does it sound like the PT is shot and needs replacing?

sounds like something is sucking large currents through it.


have you isolated the load from the PS and see if it runs cool?
have you checked the PS rectifier to make sure it's making DC instead of passing AC?

[plexi50]

I isolated the load from the PS and it still gets super hot. I found a PT at Mercury Magnetics. The diodes test good but i will change them as well as the 390 ohm ceramics. They had +16 & -16 volts on them. The light bulb dimmed and i knew i had a problem yesterday when i first turned it on. I have to change those smaller caps as well. wrong values.