|
Check for 13VDC at pin 2 of the CRT, and 185VDC at pin 3. These measurements are taken from the plate (pin 5) of your 35W4 rectifier (not chassis ground). The 185VDC is with the brightness control at the mid-range position, and should very either way greatly. The reading at pin 2 might vary also. I've never looked at an electrostatic CRT before so I'm still a freshman. But I would think if these measurements are correct you should have good brightness, if the CRT is good.
There's a 5mFd electrolytic right off of pin 2 as well, looks like it's counting on a 22K resistor to be in spec to keep it charged. I assume you've replaced the cap. Check the resistor.
|