Only thing needed for green glow is filaments, cathode grounded and voltage on the target. You have 99 volts which is low for an eye tube. Your tester might supply 250 volts? You don't need any special voltage on other pins.
Since your radio can only supply 99 volts a very good/new eye tube is needed.
Norm
:I've got a Silvertone 6324 working well except for the eye tube. The set has been recapped and all out of spec resistors have been replaced...including the one in the eye tube socket. The 6U5 was n.g. so I put in a new 6E5. There is, however zero green glow. It's a new tube, tests fine (glows in my tester), and I have 99vdc on the target. The plate voltage, which the schematic says should be "zero or too low to read" is 35.5vdc on my DVM. Continuity from the socket pins to their under-chassis destinations is fine. Ideas? I'm stumped. Thanks.
:Jim
All you have is 99 volts in your radio. Yes it will work on a new or very good tube. Eye tubes require 250 volts for bright green after they have had some use.
Like I mentioned all you need is filament, cathode ground and target B+. You could build a voltage doubler or use a NOS tube?
Norm
:Norm,
:Thanks, Norm. There isn't a whole lot that can go wrong. As to the 99 volts: sounds low to me too, but the schematic says it should be 100 vdc. So, assuming the schematic is right, it should work. I'll give it a rest, than dig into it again. Maybe I'll fool around with the cathode grounding. Gotta be something "simple".
:Jim