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Re: [Amps] More parasitic choke questions

To: <TexasRF@aol.com>, <vic@rakefet.com>, <amps@contesting.com>
Subject: Re: [Amps] More parasitic choke questions
From: "Jim Tonne" <tonne@comcast.net>
Date: Thu, 29 Jul 2010 12:13:01 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
I have been "lurking" on this parasitic suppressor
thing but now just have to say something.

>>>Assuming the 12 uH number is a parallel equivalent,
>>> converting that to  a series form results
>>>in 100 +j1.33 or 2.1 nH.

I want to point out that a good rule of thumb for
inductance of a piece of wire is   15  (fifteen)
nH per inch.

So that   2 nH   is less than a   quarter of an inch   of 
wire.

Boys and girls, that is totally insignificant!

>>>so high compared to the small inductance reactance
>>> of a typical suppressor that it can be  ignored.

Absolutely correct!

- Jim W4ENE



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