[Amps] searching for original 4cx1000 qst project info

[Arne Gjerning]

That person is Mark, K5AM.  He also built a XCVR (160-6M). As far as I know
he still uses it from picture I received about 2 years ago>

73 de Arne N7KA
New Mexico

----- Original Message -----
From: "skipp isaham" <nospam4me at juno.com>
To: <amps at contesting.com>
Sent: Monday, November 10, 2003 8:21 PM
Subject: [Amps] searching for original 4cx1000 qst project info


> Ralph Emailed me looking for a clue and info a QST
> Amp project using the 4cx1000 as described below.
> If any of you recognize this project by date/issue and
> can provide the source info, he and I would appreciate
> it very much. Post your replies here on amps and I'll
> forward it back to Ralph.
>
> cheers (and thanks)
> skipp
> nospam4me at juno.com
>
> [snip and paste]
> Approximately 20 or more years ago an article appeared
> in QST about a final amp that used a 4cx1000. It was built
> by a college professor that taught at New Mexico State in
> Las cruces. (last name began with an "M" and I never
> heard it pronounced so I can't remember it). This amp
> used a 50 ohm passive resistor for the grid circuit and
> had protection from plate current overload--loss of
> bias--over and under screen current and over grid current.
> Best simple system I ever saw. Of course I have lost my
> copy and desperately need the article (with integral circuit
> diagram). I have had difficulty constructing a parasitic
> suppressor that works to my satisfaction so I would like
> comments on a specific fix for this problem. Any help
> will be appreciated--all comments listened to.
> Ralph w5otp.
>
>
>
>
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