Quote:
Originally Posted by Electronic M
There is a ~30% tolerance to winding resistance , but that reading doesn't make sense. Are you reading your meter correctly/is the meter accurate?
That reading is taken with a fuse and Lin coil in series... I'd check directly across the primary of the transformer and see what it measures.
How long is the spark? It should be 1/4- 1/2" long. If shorter you have HV issues. If the length is in that range you should have raster...has your CRT been tested for emission? Have you adjusted the ion trap? Is the grid cathode bias voltage on the CRT reasonable?...all those things can kill the raster despite perfect HV.
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Thank you so much for taking a look. The HV spark is more than 1/4 for sure, I did the resistance measurements with both tubes caps disconnected and the fuse removed using fluke MM.
Regarding the CRT I tested it and it tested good with emissions well in the green, I still have lots of work to do but I needed some assurance that the flyback is not bad as it is a show stopper.