Testing a 10BP4

[prewtv]

I have several 10BP4s I tested on a SENCORE BIG MACK CRT tester.
You set FIL, CUT OFF RANGE, CUT OFF or tracking on a meter, and then check emision. Out of 3 only 1 sets correct on cut off, others almost make it, but all test good in the green and pass life test.
Not to make cut off, what does that mean?
Let all warm up 10 min.
Have no working chassis to try CRTs in yet.

[old_tv_nut]

Strictly talking without any direct knowledge, but I think cutoff slightly out of spec is not going to cause much trouble in a B&W tube - might result in a dimmer picture if the chassis doesn't make the required voltages.

Maybe some one who really knows will chime in!

I could use one of those 10BP4's for my RCA.