Carl,
Count me in for the copy of the article. I have a much modifed Dentron
Cliperton L that is not 100% finished as it still needs some type of tuned
input. I was going to cheat and do it the easy way and order the tuned input
components from Ameritron that they use on the AL-572 but that seems almost
too easy. I would love to get a copy of the Alpha tuned input that was used
on the 374. I know there was thread on here a few months ago regarding this.
The 374 I owned had pretty much a flat input vswr from 160 to 10 meters. I
seem to remember that the worse band was 10 and it really was not that bad,
maybe 1.5:1 or so.
Lane
Ku7i
San Diego
>From: "carl seyersdahl" <carlseye@tampabay.rr.com>
>To: <amps@contesting.com>, "Jim Strohm" <jstrohm@texas.net>
>Subject: Re: [AMPS] Input matching experiment
To: <amps@contesting.com>
>Date: Fri, 18 Jan 2002 19:26:56 -0500
>
>
>In reference to the subject matter. I have an article here written by a ham
>in spain and published by Svetlana several years ago. This gentleman built
>an amp, single 572B, using a home made rf choke and input transformer
>combined, and using a large swamping resistor , about 75 ohms at 40 watts,
>untuned input..
> Just how good it turned out I can't say, but it is an interesting thought
>on the subject.!! I mention this only in the interest of theoretical
>discussion.
> I have a copy of the article if anyone is interested
> have a good day all.
> carl / kz5ca
>----- Original Message -----
>From: "Jim Strohm" <jstrohm@texas.net>
>To: <amps@contesting.com>
>Sent: Friday, January 18, 2002 5:35 PM
>Subject: Re: [AMPS] Input matching experiment
>
>
> >
> > W8JI@contesting.com says:
> >
> > >So what is it you question or doubt?
> > >
> > >Do you doubt a device that conducts less than 360 degrees of the
> > >RF cycle produces harmonics?
> > >
> > >Do you doubt the harmonics fed back into the output of a radio will
> > >cause many rigs to act funny?
> > >
> > >Or do you doubt most exciters like to see a constant load
> > >impedance over the RF cycle?
> >
> >
> > I question dogmatic thinking. I question bombastic spokesmen who insist
> > that theirs is the One True Word, Excluding All Others.
> >
> > And when I have a theory or line of inquiry that I can test out with a
> > simple and repeatable experiment, sometimes I try out my idea.
>Sometimes
>I
> > have a better idea, sometimes not.
> >
> > Were it not for people like me, we'd all still be living on a flat Earth
> > with the sun circling us every day.
> >
> > Jim N6OTQ
> >
> >
> >
> > --
> > FAQ on WWW: http://www.contesting.com/FAQ/amps
> > Submissions: amps@contesting.com
> > Administrative requests: amps-REQUEST@contesting.com
> > Problems: owner-amps@contesting.com
> >
>
>
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