[Resonance1]

Yes, I was fortunate enough to be able to purchase an original Sam's Photo Facts for the set on eBay. I scanned it at 600 dpi and forwarded a copy to the early television museum. That's the copy that you see when you click on the link you provided. And yes, I've been up to my elbows inside that set for the past couple of months, so I've become very familiar with the dual transformers, indeed dual power supplies. Now that you mention it, yes there are no power resistors, ballast, etc. What I found especially remarkable was the interaction between the TV and the radio. The only power supplies are in the TV, but the control is largely in the radio. Most of the power generated by the TV is routed to the radio.

When switched to radio mode (by a switch on the radio), the power stays there and powers the radio, while only one of the power tubes and the audio output tube are powered in the TV. The radio "plays" through the final stage of the TV audio channel. When in TV mode, of course, all of the power is routed from the radio back to the TV.