Tom et al,
You were correct. Somehow I had the wrong Tune and Load numbers for
17-10 meters. I corrected them, and things are back to normal. Thanks
for your help.
73,
Paul
K5ESW
From: "Tom W8JI" <w8ji@w8ji.com>
To: <Paul@PaulFerguson.us>,
<amps@contesting.com>
Subject: Re: [Amps] HF-2000 amp problem?
Date sent: Sat, 14 Apr 2007 13:06:19 -0400
> > On 20 meters and lower, grid current runs about 150 ma and
> > plate
> > current about 500 ma. Plate voltage is about 2,800. Input
> > power runs
> > 50 - 75 watts.
> >
> > On 17 meters and higher, grid current is about 100 - 150
> > ma and plate
> > current is 250 - 300 ma. A small increase in input power
> > gives a
> > large increase in grid current and little additional
> > output power.
> > Input power is 30 - 40 watts.
>
> Although it **might** be some obscure problem, I think it is
> extremely unlikely to be an amplifier problem.
>
> It also sounds to me like you are not loading the amp heavy
> enough.
>
> You probably just need less capacitance on the loading
> capacitor setting.
>
> 73 Tom
>
>
>
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