[Boatanchors] SX-24 rig thoughts - was Re: Companions to a BC-312 &a Halli SX-24

[Carl]

Use a Vackar or Franklin VFO circuit using older tubes if you want to 
preserve the looks. Simple, stable, and hard to screw up.

Carl
KM1H


----- Original Message ----- 
From: "Michael Tauson" <wh7hg.hi at gmail.com>
To: <boatanchors at mailman.qth.net>; <milsurplus at mailman.qth.net>; "arc5" 
<arc5 at mailman.qth.net>
Sent: Wednesday, June 03, 2009 6:49 AM
Subject: [Boatanchors] SX-24 rig thoughts - was Re: Companions to a BC-312 
&a Halli SX-24


> After reading Meir's challenge and Mac's reminder that homebrew was a
> lot more common then, I dug out four digital manuals I have, the 1936
> and 1941 ARRL Handbooks and the 1937 and 1938 RCA transmitting tube
> manuals.
>
> The first mentioned gave me one really good piece of news; my
> experience literally breadboarding equipment using 1930s designs can
> be used.  Between it and the 1941 Handbook, I found several nice
> crystal controlled rigs good for around 25 watts out on 80 and 40m CW.
> Since I have never successfully built a stable VFO, I'm not too
> concerned about being rock-bound.  I just need a lot of rocks like I
> had during my Novice days.
>
> I know where I can get some appropriate period phones (which reminds
> me, what would have been THE most favored then, Brandes?  Baldwin?
> Trimm?)  Does anyone know of a good source of an equally old key or
> crystal holders?  (Also, what type of crystal holder would be
> appropriate?)
>
> Oh, in place of a large piece of black phenolic for the panel, I'm
> thinking more along the lines of black Plexiglas due to relative cost.
> My local plastics house has the most wonderful scrap bin which has
> supplied several previous projects.  I'm sure they won't let me down
> now.
>
> Commercially made equipment ... well, I haven't looked yet but I
> suspect something will turn up.
>
> Best regards,
>
> Michael, WH7HG
> -- 
> http://www.nationalmssociety.org/chapters/NTH/index.aspx
> http://wh7hg.blogspot.com/
> http://kludges-other-blog.blogspot.com
> Hiki Nô!
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