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[AMPS] More amplifier experiments

To: <amps@contesting.com>
Subject: [AMPS] More amplifier experiments
From: measures@vc.net (Rich Measures)
Date: Fri, 29 May 98 22:21:17 -0800
>>>Some people use resistive inductors to improve their surpressors, so why
>>>not use inductive resistors? 
>>
>>Because the R is in the low-L branch - where less L is better.
>
>And there ain't much R either.  It's just enough to disturb the Q a 
>little.
>
A few ohms of ESR in the suppressor L has an unlittle effect on VHF Q and 
on Rp, which is presumably why Mr. Rauch cancelled his post (11/28/96) 
proposing that we do the calculations for a suppressor with 5 ohms of ESR 
in the suppressor L, and compare results.  According to Wes' tests, at 
100MHz,  a copper-wire suppressor increased Q 46% and increased Rp 65% 
compared to an otherwise similar resistance-wire suppressor.    



Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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