K7000 flag waving?

Shupac

Active member
Joined
Apr 12, 2012
Messages
238
Reaction score
126
Location
Fairview, Tennessee
I just recapped a 25" K7000 (K7191) and replaced the STR30130 regulator and a shorted C38. The picture looks great except for a "flag waving" problem on certain screens. With my JROK Williams board, it is pretty noticeable on the Stargate high score display -- just a gentle, slow undulation...

Tried it with a different C55 filter cap. No change.

One other issue is that the picture is a just a little bit dim. The tube tests great on a BK 490 rejuvenator. B+ is 130V. Flyback has black knobs, so I assume it has been replaced at some point.

Bad regulator? Bad flyback?
 
Back
Top Bottom