[rciancia]

To close the loop on this here is what I measured and how I did it.

I removed the Transformer from the unit entirely, and measure across the following with an OHM Meter.

Primary 1 to Primary 2 = 9.8 ohm, meter beeps indicating continuity.
Filament 3 to Filament 4 = 0.5 ohm, meter beeps indicating continuity
80 Filament 6 to 80 Filament 7 = 0.4 ohm, meter beeps indicating continuity
80 Plate 9 to 80 Plate 10 = 416 ohm
80 Plate 9 to Center Tap 8 = 216 ohm
80 Plate 10 to Center Tap 8 = 200 ohm

Putting Filament pairs 6, 7, 3 and 4 individually to Center Tap have no reading and no continuity beep to Center Tap 8

In your view are these readings normal ?