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[Amps] How to improve efficiency

To: amps@contesting.com
Subject: [Amps] How to improve efficiency
From: Ve6wz_Steve <ve6wz@shaw.ca>
Date: Fri, 28 Nov 2003 11:20:40 -0700
List-post: <mailto:amps@contesting.com>
I have a HB 4-1000 amp, GG, 6 kv on the anode, tuned input, PI output.

Output (and input) is awesome on 40m, but I cant get the same steam on
80m.
I realize that efficiency can be variable from band to band, but what
can be done to improve single band (80m)performance ??
Where do I start ?  I presume changes to the tank circuit may be in
order??
I DO have sufficient loading capacitor range.
Any suggestions.

de steve ve6wz.

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