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Re: [Amps] grid resonance

To: "'R L Measures'" <r@somis.org>
Subject: Re: [Amps] grid resonance
From: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Thu, 10 Aug 2006 01:04:10 -0400
List-post: <mailto:amps@contesting.com>
R. L. measures writes: 

> > N7WS measured a nichrome suppressor and a regular suppressor
> > and found no difference at all behavior at VHF.
> > I've done the same.
> 
> Mr. Rauch --- At 100MHz, N7WS' measurements  showed that the 
> parallel- equivalent resistance (Rp) of a  suppressor constructed 
> from Ni-Cr wire is 103-ohms, and the Rp of a similar suppressor 
> constructed from copper wire is 167-ohms.
> http://www.somis.org/Rp-comp.html

N7WS' complete conclusions, which you continue to ignore and 
refuse to print, were that the same result could be obtained 
with a conventional suppressor by simply decreasing the value 
of the resistor in the suppressor by about 35%.  The use of 
nichrome wire simply provided resistance in parallel with the 
fixed resistor.  Worse yet, the additional resistance was in 
the branch of the circuit that carried the desired (< 30 MHz)
RF and caused avoidable losses.   

73, 

   ... Joe, W4TV 

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