04-16-2016, 01:19 PM
My service data sheet says plate volts @ 300 and screen grid volts @ 310 no cathode voltage. If you go down the chart on the tube page depending on what that tube is being used for the voltage can go to 350. My schematic ohms out the field coil to 660 ohms, my meter read around 675 ohms I may have typed the wrong number before.