[R-390] Orange Drop question

[Bob Camp]

Hi,

The main reason to mark the "outside" on a film capacitor is to make sure
that the outer foil is at ground in something like a bypass application.
This makes some sense if the value of the capacitor is small and the circuit
is fairly high impedance. It also only makes sense on a wound foil rather
than a stacked foil part.

If the value of the capacitor is farily high then the couple of extra pf
that you get to the outer foil probably will never be noticed. I don't think
there is anyplace in an R-390(A) that would be a problem for this kind of
thing. All the low value stuff is mica or ceramic. The film stuff is all
large value.

    Take Care

        Bob
        KB8TQ


----- Original Message -----
From: "Scott, Barry (Clyde B)" <cbscott@ingr.com>
To: "R390 (E-mail)" <R-390@mailman.qth.net>
Sent: Thursday, September 26, 2002 10:01 AM
Subject: [R-390] Orange Drop question


> Can someone tell me how to determine which lead is connected to the outer
foil on an Orange Drop capacitor?  Some of them have stripes, but the ones I
got yesterday don't have a stripe.  Is it the right-hand lead looking at the
cap from the "front" (readable) side?
>
> Thanks,
>
> Barry - N4BUQ
>
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