10-16-2022, 05:44 PM
Hey Glenn,
You're going to have to give us a better voltage chart. The XXL triode tube has pin 2 to the plate, pin 6 to the grid and pin 7 to the cathode. We will need to see the voltages for those pins. The others are filament and no connection (used for terminal connection to other circuits).
No, the 2 XXLs are not in the same type of circuit. The one at the lower part of the schematic is the oscillator and the one at the top is an RF amplifier/mixer. The plate voltage for that tube should be around 200 volts.
Best way to get voltages is to write the pin numbers of each tube on the schematic, read the voltage on each pin and record them using the name of the tube element (plate, cathode, etc.). It also helps you to number each tube on the schematic, then write the tube number near the socket. Now you won't get confused when there are multiple tubes of the same type.
You're going to have to give us a better voltage chart. The XXL triode tube has pin 2 to the plate, pin 6 to the grid and pin 7 to the cathode. We will need to see the voltages for those pins. The others are filament and no connection (used for terminal connection to other circuits).
No, the 2 XXLs are not in the same type of circuit. The one at the lower part of the schematic is the oscillator and the one at the top is an RF amplifier/mixer. The plate voltage for that tube should be around 200 volts.
Best way to get voltages is to write the pin numbers of each tube on the schematic, read the voltage on each pin and record them using the name of the tube element (plate, cathode, etc.). It also helps you to number each tube on the schematic, then write the tube number near the socket. Now you won't get confused when there are multiple tubes of the same type.
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