Quote:
Originally Posted by Electronic M
Some focus ideas: there should be a ~3-6KV ceramic cap on the focus coil that may not be holding correct capacitance value. IIRC the 16 is tube focus rectification...I tend to switch most focus rects to modern SS HV diodes. Removing the filament load relieves the flyback, and tube focus rects are not always as stable as I like.
If you can get the HV cage open to look for arcing/corona that may help.
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I found it, its a 130m 6kv. I believe that is a 13pf. Closest I Found is a 12pf 6kv over at mousers
While I am over at mousers I can pickup them SS rectifiers. it is these ones correct?
https://www.mouser.com/ProductDetail...7ob59eZhXAY%3D
I also checked the resistor that is on the other side of that cap, its pretty far out of range. its suppose to be 47.5 meg and reads at 58 meg. I happen to have a 2 watt replacement I could use, however this thing looks pretty huge, a lot bigger than my 2 watt. Sams doesn't say the wattage to use for this.
Quote:
Originally Posted by Electronic M
If there is an obvious carbon track and it won't clean off you can drill out or grind the carbon track off and rebuild with silicone caulk...The HV rect bottom socket cups in some sets will arc through and carbonize and that is my typical solution to that...The silicone caulk has a higher dielectric strength than the average plastic they used back then so it at least in the case of carbonized holes is usually a sound solution...YMMV.
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Well it sure can't hurt to give that a try, is there a particular silicone caulk that I should use? Same stuff to use on the flyback? I am thinking of doing the flyback as well.
Quote:
Originally Posted by Yamamaya42
being zapped by the CRT hv high voltage is graduation from greenhorn to veteran TV repair person. i cant count how many times i have had the joy of being hit by the reaming charge left in the CRT, it's one of the most exciting things about TV repair, is that you will Never know when you will be knocked on your ass by a hv discharge. anyway. if your cap on your reg has been arcing, then it has been most likely has carbon on it, and is hard to remove, but not impossible.
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Whoot! I'm upgrading from greenhorn
: D Ive been trying really hard not to get knocked on my ass. I only wish I could be half as good as y'all ; )
I am getting better though and may get there someday
The cap is pretty filthy with a black sooty substance, some of it has cleaned off but not at all of it. But I don't see a track or haven't found it yet