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Re: [Amps] toroid filament choke?

To: Will Matney <craxd1@ezwv.com>
Subject: Re: [Amps] toroid filament choke?
From: R.Measures <r@somis.org>
Date: Wed, 27 Oct 2004 05:00:39 -0700
List-post: <mailto:amps@contesting.com>

On Oct 26, 2004, at 10:41 PM, Will Matney wrote:


Tony,

You have to keep in mind the current surge there until the heater warms up. The colder the heater is, the more current it draws. I would use a conductor with at least 750 cir mils per ampere. For 3 amperes, that equals out to be about 16 AWG wire for the minimum.

In single layer RF choke service, #16 silicone-varnished (Type WT) Cu wire will handle 20A. This type of wire is presently SOP in electric motor shops.


Without doing any calculations, a higher inductance is indeed needed for 160 meters. ...


Richard L. Measures, AG6K, 805.386.3734. www.somis.org

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