Corrections:
I use a pushpull final with separate grid and plate current meters FOR
EACH TUBE, so this requires two separate grid leaks, one for each tube, a
separate protective bias supply for each tube, and of course, a separate
filament transformer for each tube.
I never liked putting the plate current meter between the hv transformer
midtap and ground, unless the filter caps are returned directly to the
transformer. Otherwise, the charging current of the filter caps shows up
on the meter, and with large enough caps, could actually damage the meters
on startup. The bleeder needs to go to the PLATE TRANSFORMER MIDTAP as
well, or else the meter will read plate current plus bleeder current.
Don k4kyv
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