[Hallicrafters] New Guy & HT-37

[Duane Fischer, W8DBF]

Try doing a search in the Hallicrafters files! You can do it from the Halli 
web site:
www.w9wze.net
>From the home page locate the link for the archives and follow the screen 
prompts. Good luck -

----- Original Message ----- 
From: "Karin Johnson" <karinann at tampabay.rr.com>
To: <hallicrafters at mailman.qth.net>
Sent: Thursday, November 27, 2014 7:23 PM
Subject: Re: [Hallicrafters] New Guy & HT-37


>I did a search for HT-37 and QSK and came up with a link to a file on the
> BAMA site.
> After looking at that link schematic it appears that this mod incorporates
> the circuit
> from the HT-32B into the HT-37.  In my opinion it does not really provide 
> a
> full QSK
> type of operation. YMMV.
> I designed and laid out a PCB for a true QSK for my HT-32B based upon an 
> old
> QSK
> article for a Collins S-Line years ago.  My design uses an external vacuum
> relay and
> has circuitry to set up the timing so the transmitter does not "HOT KEY" 
> the
> relay.
> It requires a bit of modification, although not complicated, to the 
> HT-32B.
> So for
> the purist this may not be acceptable, but the modifications can be easily
> retrofitted.
> I'm not in the business of selling these things but if you're interested I
> can you an
> Extra board I have plus a BOM.  I was considering doing a newer version to
> make it easier
> to install and retrofit, but never got around to doing this due to other
> priorities.
>
> Karin K3UU
> Palm Harbor, FL
>
>
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> -----
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-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.2247 / Virus Database: 4189/7984 - Release Date: 10/31/14
Internal Virus Database is out of date.