Hi Don,
Yeah, I noticed the asymmetry in current, too.? Thanks to your markup, it's clear that the current that goes through the rectifiers is about 0.4 A higher on one side than the other.? The circuit to supply negative bias voltage draws current on only one side of the cycle.? Could it be drawing this much?? If I remember, I'll measure the voltage across R64 or R63.
Cheers,
Halden VE7UTS
