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Mylar cap??

Discussion in 'Electronic Repair' started by Henry Kolesnik, Jul 20, 2003.

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  1. I was at a hamfest looking for some mylar caps for a circuit that called for
    them. I got several opinions on how to tell one and finally gave up. Are
    there any sure fire ways to identiy a cap as mylar and why are they bettter
    than a silver mica or others. Does anyone have a short chart comparing the
    characteristics? How did we get by before mylar was used?
    hank wd5jfr
  2. Many mylars look like Chiclets. They are good capacitors ... typically more
    temperature stable than ceramics. They are good for things like timing
    circuits, active filters, etc. Silver micas are sometimes better for RF
    oscillators when used as part of the tank circuit.

    There is no absolute way to tell by just looking unless you have lots of
    experience and keep with the new stuff.
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