[dieseljeep]

Originally Posted by jr_tech

If I remember correctly.

https://frank.pocnet.net/sheets/093/9/9QP4.pdf

https://picclick.com/9QP4-9-Picture-...949501452.html

jr

I looked up the tube in the GE tube manual. The heater rating is 4.7 volts at 300ma. The heater looks a lot different than the heater in the usual B&W CRT.
I ran the heater at about 7volts to try to increase emission.