Tech-Master NIB TV Kit #5516

[dieseljeep]

Originally Posted by Crist Rigott

At the suggestion of someone, I wired in a 2 meg pot to take the focus electrode, pin 6 of the CRT, from ground to 300 volts. I did and that didn't help at all. I also checked to be sure I had continuity from the CRT harness to the CRT base when the connector was plugged to the CRT. That checked good.

Maybe a broken focus wire from the base to the bulb?

I've seen the e'stat tubes focus well without anything connected to pin 6.
Being a newcomer to the hobby, you don't have access to any of the junk us collectors have, such as another, smaller CRT or maybe a magnetic focus unit.
I know, the gun structure is different on a e'stat focus tube but maybe a magnetic focalizer would help.
BTW, that's the focus look like on the 5AXP4 test tube.