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Re: [Amps] 160 meter tuned circuit

To: "Larry" <>, " AMPS" <>
Subject: Re: [Amps] 160 meter tuned circuit
From: R.Measures <>
Date: Wed, 17 Mar 2004 08:04:38 -0800
List-post: <>
?  Larry --  If you convert the 4-1000A to grid-driven, AB1, no tuned
input is needed for 160m, or for 80m and 40m operation.  The needed
screen supply can be derived off of the anode supply bleeder-R and a
zener-string.  However, power-out will be c. .1/7 of a S-unit less in
grid-driven than in g-g.

>Hi guys, I recently recieved a home brew 4-1000a amplifier. Amp is tapped
>for 160 only and running just 1 tube. High voltage is near 5000. This amp
>has no tuned input circuit and Im not a very good builder. Does anyone
>have a schematic or know where I can get a tuned circuit for this one band
>amp? My Yaesu tunes to abt 1.6 swr on auto tuner and antenna standing wave
>is less than 1.5.
>I have read enough here to know thats there is some sharp fellows on the
>thanks Larry WB9F
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