[SwizzyMan]

Originally Posted by miniman82

You need to variac the chassis real quick to verify the crt has not gone to air, getting super high readings like that makes me question whether it has gas in it. In my experience an AX that has top of the scale readings on all guns is usually gassy, even the tube in MY COLORCASTER (I bought Ben's set) tests like new, but it doesn't tip the scales all the way on all guns like that one does.

If it is indeed good, you have a winner there. But until you've had HV and a picture on it, all bets are off. Remember: a gassy tube that hasn't yet burned out its heaters will show good readings on test, but still glow purple upon HV application. Hence the only quantitive test is to run it on a chassis, if you get something on the screen it's good.

I would like to add,

When I first tested the CRT, it did not test this good at all. All guns tested maybe right above the G on the good scale. It didnt test this good until I let it cook for about 10 minutes at 6.3.