[Johnson] Johnson Invader 2000 problem

[George]

The Invader 2000 lives.

The "no grid current" problem is fixed.  It turned out to be a cold solder
joint where the 2 RL circuits from the screen pins of the 4-400As join and
connect to the line carrying the 500V screen voltage.  I now have plenty of
grid current and the Bird Meter shows about 600 watts out at 380ma plate
current.

The plate voltage only shows about 2KV on the internal meter though.  The
manual says it should be 2450.  I don't have anything to measure it, so I
can't verify the reading.  Does that make a difference, or does 600W out
mean it's probably OK?  I thought maybe the resistors used in the metering
circuit may have changed value and therefore the voltage reading.

Thanks to everyone who provided ideas.

Regards

George, NY2O