Anyone have a schematic for the HP 6220B power supply? Mine's working,
but the meter is off. It even reads negative at very low voltages. I've
compensated somewhat with the mechanical meter zero adjustment, but the
reading is still not right over the entire range. I suspect the problem
is in the active circuitry that drives the meter. This circuitry is not
present in similar HP power supplies for which I have the schematic.
Brian
