Signal issue on a Motorola 7VT2?

[earlyfilm]

Originally Posted by Kamakiri

Everything's lighting, and I have a full raster.

On pin 3 of V1, I have nothing. Should be 52 VAC.

If you have zero volts on filament pin 3 of V1 then it ain't lighting!

You should have 6.3 V AC between pins 3 and 4 of V1.

If V1 filament is not lit, then it will draw no B+ current and your voltage on pin 1 plate of V2a mixer will be too high, as you mentioned above, because both are after the same B+ load resistor.

James