PT secondary voltage (VAC) in Magnatone 280

[dinkotom]

Hi,
does anybody know the PT secondary voltage (VAC) in Magnatone 280 amp? The schematic shows 375 VDC on the output plates.
Thanks.

[Structo]

Actually it is 375v on the rectifier cathode.

The rectifier used is the 5U4GB

That tube drops 50v so you are probably about 425v on the secondaries.

Also, don't forget that the power transformer was built for 117v 60hz wall voltage.

So all the voltages on the secondaries will probably be a bit higher.

[dinkotom]

Thanks Tom, much obliged!