[Hallicrafters] S-40 and S-40A dial string

[Mike Everette]

I rather suspect that the bandspread stringing information found in the original, "military style" manual for the S-40 -- is the real thing.  This manual is much more complete than any other Halli civilian manual ever, for any model.

This manual is on BAMA.

73

Mike
W4DSE

--- On Tue, 5/15/12, Roger D Johnson <n1rj at roadrunner.com> wrote:

> From: Roger D Johnson <n1rj at roadrunner.com>
> Subject: Re: [Hallicrafters] S-40 and S-40A dial string
> To: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
> Cc: "'hallicrafters'" <Hallicrafters at mailman.qth.net>
> Date: Tuesday, May 15, 2012, 3:46 PM
> I have a Hallicrafters service
> bulletin for the S-40A and the dial stringing guide
> doesn't show any crossover. At minimum capacity of the
> bandspread cap, the
> dial should be at 0 (zero). This means that the readings
> increase as you go
> lower in frequency. This is counter-intuitive to most people
> so I suspect many
> sets were changed so they "tuned right".
> 
> 73, Roger
> 
> 
> On 5/15/2012 3:11 PM, Richard Knoppow wrote:
> >       Some time ago I restored
> an S-40A. I discovered the
> > band spread capacitor rotated in the opposite direction
> than
> > others I've seen and opposite the cap in my
> S-20R.  In order
> > to make the band spread dial run in the right direction
> it
> > was necessary to cross over the cords.  I "fixed"
> this by
> > pulling the stop pin from the cap and reversing it.
> However,
> > while the dial cord now runs as the diagram in the
> handbooks
> > show the band spread dial stops at about 95 instead of
> going
> > to 100.  Of course, it does the same think in my
> S-20R so
> > maybe that's how its supposed to work.
> >       A picture of the insides
> of an S-40 in an old QST seems
> > to show the crossed over dial cord.  Its a pretty
> low
> > resolution picture so I can't be sure.  What I
> would like is
> > for those with S-40 and S-40A receivers to have a look
> > inside to see which way the band spread capacitor and
> dial
> > string run. What I suspect is that both arrangements
> were
> > used at various times.
> >       I asked this before, not
> sure if on this list, but am
> > trying it again.  If the arrangement before I
> "fixed" it is
> > correct I will restore it.
> >
> >
> > --
> > Richard Knoppow
> > Los Angeles
> > WB6KBL
> > dickburk at ix.netcom.com
> >
> >
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