[rfeenstra]

Chris, that's how I thought the system worked. Plus, it gives amplification. but then, I've been wrong before!! With the tube normally very near cutoff, the plate voltage would be high. I still don't understand where Philco got the 35 volts on the plate. Of course, given the very high load resistance in the plate circuit, it wouldn't take much grid voltage to take the plate voltage down. I wonder how varying grid bias affects the sound of the detector/amplifier.