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In lieu of a TRMS meter, I brought my Tek oscilloscope to measure with (and since I don't know if I'm dealing with an open chassis or not I used an isolation transformer on the scope to not get hurt or the scope hurt).
The TV in circuit is actually only producing 5.9v, the arcade board peak to peak is around 6.16v on the filament voltage. I did notice on the arcade board this seems fairly consistent, but on the TV board this varies based on what's on the screen. The more white the picture gets, the more the voltage drops (by about .2v). I'm going to take a guess that the TV is having some issues in the power supply section since I did replace this flyback with a high quality replacement 10 years ago, and the original flyback produced the same visual tired clues before the original flyback went in a blaze of glory.
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