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Re: [Amps] R. MEASURES PRAYERS ANSWERED

To: R L Measures <r@somis.org>
Subject: Re: [Amps] R. MEASURES PRAYERS ANSWERED
From: Vic K2VCO <vic@rakefet.com>
Date: Wed, 31 May 2006 17:12:18 -0700
List-post: <mailto:amps@contesting.com>
R L Measures wrote:
> 
>  In an HF amplifier, the old ARRL Handbook test tests HF stability, not 
> VHF stability.

1958 Handbook, chapter 6 (HF Transmitters) p. 164:  Subsection entitled 
"VHF Parasitic Oscillation" specifically addresses this.  It's too much 
to type and I don't have a scanner, but it describes how to check for 
VHF parasitics, how to determine the frequency, and how to suppress them.

This appears in a section called "Stabilizing Amplifiers", which 
separately discusses LF, HF and VHF self-oscillation, causes and cures.
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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