Rwd,
I would guess that the pin for the plate is burned out but the heater elements are lighting up. Note that each pin on a tube provides a different function. This tube is most likely not drawing any amperage.
I would recommend getting a reasonably priced tube tester that checks for shorts and transconductance.
Steve
I would guess that the pin for the plate is burned out but the heater elements are lighting up. Note that each pin on a tube provides a different function. This tube is most likely not drawing any amperage.
I would recommend getting a reasonably priced tube tester that checks for shorts and transconductance.
Steve