[Milsurplus] Screen Bias in ARC-5 Transmitters

[J. Forster]

Hi,

I'm looking for confirmation of the approximate screen and plate voltages
in ARC-5 transmitters and modulators.

>From the simplified Modulator diagram (Fig 4.2) it looks like the plates
of the 1625s are at roughlt 550 VDC.

The screen voltage seems to be roughly the drop across the VR-150-30 
(0D3) VR tube. (Actually, it looks to be about 56 VDC higher, due to the
resistive divider.

So, roughly, does 550 VDC on the plate and 200 VDC on the screen sound
about right?

-John

================