Is this a bad CRT? 10BP4

[Username1]

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Well that picture looks much better.... If it's still poor brightness, and the 1B3 is new
and you know it to be good, then you have to look and see what the HV is with a
meter, and see if it drops as you demand more from the HV by turning up the
brightness.... You may also just have a weak picture tube, you know it's an
old tv, and it's to be expected.....

For HV there is a special meter you need to measure it, so be sure you get
the right one, either a dedicated HV, or adapter to a DVM whatever you
want to do. Horiz Output circuit provides HV so you can check out
that area if you find HV to be low.... And ebay for another
picture tube....


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