Quote:
Originally Posted by bandersen
Adjustingthe horizontal freq. & drive, use fresh tubes, recap etc. Make sure B+ is where it should be.
The focus voltage is probably derived from the boost voltage which comes from the flyback damper circuit. So, if you have low HV, the boost * focus voltage are probably low.
You really need a schematic. What model # is it?
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I have a schematic it’s a 22c38 cbs Columbia. It’s been recapped tubes all good and tried moving the horizontal frequency drive won’t go any higher then 12 kv turn it any more and I get the line down the center. Focus voltage is low as well.