Re: caps

• To: tesla-at-pupman-dot-com
• Subject: Re: caps
• From: "rwall" <rwall-at-ix-dot-netcom-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Sun, 28 May 2000 20:31:49 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Steve,

What's an L diode filter?

RWW

----- Original Message -----
From: Tesla List <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, May 28, 2000 1:26 PM
Subject: Fw: caps


> Original Poster: "Steve Young" <youngs-at-konnections-dot-com>
>
> List,
>
> I stand by my recommendation.  If you read carefully Mike's original
> request, you see he is looking for filter caps for a DC power supply which
> will run a Poulsen oscillator.  The latter is in effect an arc lamp with a
> resonant circuit (TC secondary tank) which produces RF power because of
the
> negative resistance characteristics of the carbon arc.  He would NOT be
> using the electrolytics in a tank circuit!
>
> Electrolytics work fine for DC power supply filters.  Mike should add an
> L-diode filter to keep the RF out of the electrolytics (Greg Leyh of huge
TC
> fame is an advocate of DC powered TCs using L-diode RF filters.)
>
> Of course, Mike may prefer the more awe-inspiring oil filled HV filter
caps
> just because they look more impressive!
> --Steve

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