Quote:
Originally Posted by dobulee
Just one additional thought:
The 12LP4 datasheet for your CRT shows that the Heater Negative with respect to cathode shouldn't exceed 140V.
Without the sams, its not immediately obvious what the plate supply voltage is on the video amp. But, if you implement this, make sure the average heater to cathode voltage doesn't exceed the limit.
|
Heater negative is just ground, I believe. So basically cathode to ground, then? Voltage chart says video amp plate voltage is 120vdc, measured to pin 1 of V11, I'm guessing a positive... rail... or whatever. Main voltage supply type thingy. The crt cathode says 115vdc, presumably to ground.
I have ordered some diodes. Will keep you posted.