[Heathkit] AT-1 Question

[RJ Mattson]

I have been using the AT-1 with a Johnson 275w antenna tuner.
I never needed to modify the AT-1 in any way.
It loads to the specified current on all bands with the Johnson tuner.
The tuner provides the necessary harmonic reduction.

I believe the Heath AC-1 is basically for end fed random length antennas?
It would be better to replicate the Johnson link coupled design that is
found in the league handbooks. This design can be used with coax,
balanced line and end fed wire antennas.

bob...w2ami  ex wn2ami 1962
http://www.qrz.com/callsign/w2ami



----- Original Message ----- 
From: <Wj5mh@aol.com>
To: <Heathkit@mailman.qth.net>
Sent: Saturday, January 24, 2004 9:51 AM
Subject: Re: [Heathkit] AT-1 Question


> In a message dated 1/23/2004 11:52:00 PM Central Standard Time,
> keng@moscow.com writes:
>
> I always install a large variable capacitor between the cold end of the
link
> and ground.
> __________
>
> Ken...  Thanks for the idea, and I'll certainly consider it an option once
I
> start the refurbishing.  I'm also looking at cloning the Heathkit AC-1
tuner,
> which uses a low-pass filter in the input followed by an LC network.
(K4OAH
> gave me some direction there.)  I downloaded a schematic yesterday, and it
looks
> fairly simple to duplicate, and this would leave the AT-1 stock.  I have
> access to a spectrum analyzer, so I'll have to take some measurements.
>
> Thanks!
> Joe ( WJ5MH )
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