[George Guma]

You are right, all the tubes have 300ma heaters, but for whatever reason, I dislike running filaments in series. I also found several heavy resistors wired in the filament wiring by someone in the past, but I removed them all without attempting to figure out why they were there and I just assumed that they were some sort of current compensating attempts. That is, however, not my problem. The difference in the schematic and actual output transformer configuration (no center tap) is something I am trying to figure out now.