[Amps] Henry 3002 Metering Drifting?

[Mike & Becca Krzystyniak]

Periodically I fire up my Henry 3002 just to keep the electrons lubricated.

I noticed that the metering at idle, the "zero iP/iG" seems to have drifted some.
Since nothing has changed I'm guessing some of the resistors have drifted.

Is this common with Henry amps?   I know it was with my Commander Amps.
Suggestions or anything to watch out for when I replace the originals?

Thanks...

73  Mike   K9MK

k9mk at flash dot net