The focus range has improved greatly after replacement of the 66 meg resistor with another that did not drift as low. 55 meg versus 50 made a difference.
I don't know the wattage on these rare birds, so I don't know if I can reliably add a 10 meg-1 watt resistor in series and optimize the range
The cathode current on the 6JE6 was dipped at 192 mA, likely due to the replacement fly.
Raster is great but picture only good so Ill post my other question separately since its no longer arcing
