[TN Allen]

So much to learn! Thank you for the infomation, I'm beginning to appreciate the complexity and how much was accomplished in early radio and electronics.

I've been thinking about the first commercial radio braodcasts preceding the Radiola 18 by only a few years. I also recently remembered a dentist in Jamestown, NY showing me an early radio receiver and antenna he built to receive the first commercial station broadcasts. He had saved it for decades as he showed it to me around 1972.

Small progress, I've soldered 3 pairs of 30 Ohm resistors in series for the cathode bias with a 400 Ohm center tap between one pair, a 2000 Ohm between a second pair, and no resistor between the 3rd pair. I had bought 30 Ohm wire wound as these were specified on the Radiola Guy schematic. Hopefully these will work temporarily, I can order 20 Ohm later. All of the above are 5 Watt. I've attached a photo. I can plug this assembly into the 0-30 V power supplies using stacked banana plugs to connect to the audio section terminal strip. I'll also figure out a connection to the far right
"Output" shown on the right side of the schematic, which connects to the 1875 Ohm center tap resistor shown on the Radiola Guy schematic that connects to the 5V PS.
I used a 2000 Ohm resistor rather than 1875 Ohm as this is what I could find to purchase. 

I'll check the tubes, I think I bought the tubes as tested New-Old-Stock from Tube Depot. I have several others as well from old Radiolas, if none work, I can probably order another. 

Thank you.