[Kico]

What that resistor does is develop the grid bias voltage for the audio output tube. You'll be fine with 317 ohms. Can't think of any cap on that set that would need to be larger than 600v.
How's the oscillator coil in this one?
Terry

Terry,

Thanks, I'll go ahead and use what I have to replace the 325 ohm resistor. Yes, the OSC is fine and so is the antenna coil; the one I had to rewind on the other set. The resistance was within limits so it checked good, but I pulled it anyway to check its physical condition. The windings shine like the day they were made...no evidence of the "creeping green grunge" at all!

The Philco data sheet on the cap blocks shows a couple of the blocks I'm going to rebuild using 1000V and 1200V caps; hence the reason for the question. If you feel 630V is OK, then that's what it will be. Not much volume though, even after changing the 4 meg cap to a 2 meg in the IF can.