Re: RFI isolation

• To: tesla-at-pupman-dot-com
• Subject: Re: RFI isolation
• From: arwin wijnschenk <solva-at-xs4all.nl> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Mon, 06 Sep 1999 10:34:40 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Dear Matt,

try .1 uf in stead of .01uf as decoupling caps... those are standards

byw arwin

Tesla List wrote:

> Original Poster: "Matt Behrend" <electronxlc-at-earthlink-dot-net>
>
> Hi all,
>
> I have built a digital motor controller for my sync RSG.  It is
> malfunctioning due to picking up RFI on each firing of the gap.  The
> circuit is enclosed in an aluminum box.  There several wires that go
> outside the box, but they are optoisolated and I have ruled out the
> possibility of RFI getting in on these.  The RFI is definitely passing
> through the box and hitting the logic circuitry.  I have 0.01 uF caps
> next to each chip and the power supply is well-filtered.
>
> I have tried grounding the box and leaving it unconnected to
> anything.  Could you please give me some suggestions for
> blocking this RFI.
>
> Matt Behrend

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