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Old 10-13-2015, 05:14 PM
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zeno zeno is offline
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On its own winding that is part of the main B+ windings.
The "ends" IIRC. If it goes short will pop main breaker / fuse.
If opens pix will be unstable & pulsate. If good the sets
that use it will run apx 85-140VAC normally. Dont change it on
a re-cap. In fact dont recap this set ! Bad idea.....

GT-Matics were the first sets to use a master h/v osc.
It eliminates H&V hold & became industry standard. Came in
13", 17"IIRC, 19" & 25". 19 & 25' that used the 3 board chassis
had short lived CRT's. The key came with all sets but a
screwdriver worked fine. The "dark lite" CRT's could give a
spectacular pix with totally black blacks, not grays. Well built
but not quite Zenith or RCA PCB quality. Enjoyed by all
the techs I knew.

73 Zeno


Quote:
Originally Posted by DavGoodlin View Post
Oil-filled is an AC-rated capacitor in a round or oval can with push-on terminals, normally 2-15 mfd used for motor-starting applications. Definitely not an electrolytic.

Zenith CCII sets also used them. I need to look up a 17EC45 schematic to see how it was applied.
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