Something that really sets Toob Man's heart aglow is the igniting of the 805's mighty 211 power triode tube. When I dim the room lights and throw the filament power switch, the thoriated tungsten filament—at 3 amps and 10V—illuminates like a 30W light bulb. Both the 211's "furnace" and its grid structure are clearly visible through the top of the glass envelope—man, what a sight.
The 211 first came on the scene in 1919 as a radio transmitting tube, courtesy of the folks at the great Western Electric Company…