[DKinYORKpa]

What you want to do is measure the voltage from each plate to the chassis. Both should like 200-250vdc.

At 115 VAC, I get 273 and 269 from the 45 plates. At full line voltage (121 VAC), I get 301 and 297. The Philco specs call for 230 VDC and a 45 is rated at 275 maximum. Why are my voltages so high? The grids are both -9. Why so low?........Unrelated, but with a ground wire connected, I was getting WBZ Boston, crystal clear from York, PA......another oddity: if you look at cap #11, it's supposed to go to the coupling caps on the 3rd and 4th RF transformers. It does not and doesn't appear to have ever. What am I missing here?

http://www.nostalgiaair.org/Resources/838/M0013838.htm