[Doug Houston]

The single ended 42 is on the uncased chassis, and I will have to look at the one in the cabinet. I suspect that the reason for the simple single end output in a prototype would be that the set was for evaluation of performance and that the audio in the final model would be the "satandard" setup, using the three 42s. We know that Philco's driver and class AB triode output was a standard thing in those days. They didn't push the 42s as hard in the table sets (lower voltages) than in the consoles or the Lazy-X with the big U-2 speaker. Those tubes could blow a "S" speaker through the front of the cabinet, were the listener not cautious.

I took a look at the uncased chassis last night, and it's pretty full. I'd like to trace the schematic, and it will be a real job for that reason.