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Re: [Amps] Parasitic Suppressor 4-1000A

To: g3rzp@g3rzp.wanadoo.co.uk
Subject: Re: [Amps] Parasitic Suppressor 4-1000A
From: R@contesting.com;Measures <r@somis.org>
Date: Sat, 11 Mar 2006 04:24:22 -0800
List-post: <mailto:amps@contesting.com>
On Mar 10, 2006, at 11:15 PM, Peter Chadwick wrote:

> Steve said:
>
> >> ? ?Adding L increases dissipation at 29MHz,
> >> decreases the parallel-equivalent resistance seen by the anode at 
> its<<
> >
> > ..increases.. I think.
>
> It does increase the effective series resistance. Rs=Rp/[1+(Rp/Rs)*2]

Indeed, Peter, and increasing series-R decreases parallel-equivalent R 
- which decreases amplification, which ameliorates the negative effect 
of the electron  tube's C-feedback, and that is what VHF suppression is 
all about.

end
>
> 73
>
> Peter G3RZP



Rich Measures, 805.386.3734, AG6K, www.somis.org

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