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Old 05-29-2011, 11:29 AM
old_coot88 old_coot88 is offline
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Join Date: Sep 2009
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Quote:
Originally Posted by ctc17 View Post
I have played with the cap across the damper to lower cathode current. Most of the sets I see have to much sweep and the only time I would see a need for this would be low line voltage areas or a quick fix rather than proPper repair.
Yeah, one genre of sets that consistently defied a "proper repair" was those 25" Admirals with 6KD6 H.output and that goofy feedback HV regulation. In 'normal' operation the cathode current would sometimes soar to over 400ma. at high brightness. And they would eat flybacks like crazy. With every fly replacement, the only way to get the current within bounds was the cap-across-the-damper trick and lowering the screen voltage on the 6KD6 while maintaining width and regulation. Quite a juggling act before letting the job 'burn in' for a few days. oc
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