Harbach PM-200

[Kenth B Astrom]

Gang,

Does anyone happen to have schematics for the Harbach power supply upgrade PM-200 for amplifier SB-200 ?

I have a copy of the original schematics for the amplifier, but after the upgrade, it doesn't seem to correspond in the power supply area.

The upgrade has been working perfectly for over a year now, but the reason I am asking is that I recently had some serious arching in the amp and apart from a chain of components it took out, it also completely charred resistor R7 (910 ohms / 2W) in the Harbach power supply.

Many thanks in advance.

73 de
Kenth / W1JKP
Northford, CT

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