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Old 01-31-2015, 06:47 AM
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Findm-Keepm Findm-Keepm is offline
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Join Date: Jun 2007
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Quote:
Originally Posted by EdKozk2 View Post
Thanks Zeno,
I thought someone would know about this transformer. The oil filled cap
you mentioned, are they still around ?
Ed
Yep. The caps are similar to motor start capacitors. Zenith used them with Ferro-resonant transformers - a great way to economically get some regulation of output voltages. It is fairly old technology, but works great when the caps are healthy. I recall replacing maybe two or three of the caps in 20+ years of servicing Zenith Duramodule sets. The caps are 3.75 or 4 microfarads, at 240 volts, IIRC, and were standard size. I was in Lebanon, TN once, and had to fix my uncles Zenith - a trip to a local hardware store was all I needed to buy the cap, as they had an air conditioner motor start (or run, don't remember now) capacitor of the same value. Be careful - AC bites!

Cheers,
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"Capacitor Cosmetologist since '79"

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