[Boatanchors] 6CW4 vs Ameco 6m converter CB-6

Thu, 19 Jun 2003 00:22:02 -0400

Tnx Glen,
Will give the CB-6 a try.
Also picked up a late 1960s handbook 6CW4 6m converter.
I have not been able to neutralize the 6CW4 rf stage.
The original builder must not have gotten it to work.
Has anyone seen this problem and found the cure?
Bob

----- Original Message -----
From: "Glen Zook" <[email protected]>
To: "RJ Mattson" <[email protected]>; "Boatanchors"
<[email protected]>
Sent: Tuesday, June 17, 2003 11:08 AM
Subject: Re: [Boatanchors] Ameco 6m converter CB-6

> If you can't come up with a 6BS8, the old 6BQ7 works
> fine.  Also, the ambient noise on 6 meters in most
> locations is such that the "improved" noise figure of
> any particular tube is not really usable.
>
> I have had a home brew equivalent of the CB-6 for well
> over 40 years that was originally built by K9RMJ and
> it still works fine.  Also have a couple of "real"
> CB-6 converters and they work fine as well.
>
> The CB-6 converters work very well and are easy to
> align.  In terms of things like front-end overload,
> intermodulation, etc., the CB-6 with its tube type
> r.f. amplifier does a better job than the vast
> majority of the solid-state converters.  This
> over-load, etc., difference is especially noticeable
> in areas that have a Channel 2 television transmitter
> relatively near by.
>
> The old 2 meter version, CB-2 is also an excellent
> "middle of the road" converter.  I have at least a
> half-dozen of them around (I'm sort of a "computer
> junkie" having acquired over 30 converters of various
> configurations for 6 meters, 2 meters, 1.25 meters,
> and 70 cm over the years).
>
> Glen, K9STH
>
>
> --- RJ Mattson <[email protected]> wrote:
>
> My Ameco 6m converter has a 6BS8 cascode rf amp.  Is
> this the best dual triode to use without major
> modification?
>
> How will the Ameco compare to todays NE602 IC converters?
>
> =====
> Glen, K9STH
>
> Web sites
>
> http://home.attbi.com/~k9sth
> http://home.attbi.com/~zcomco
>
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