[Hallicrafters] Hallicrafters HT-37

[Al Parker]

Hi DW,
    I see you've already got some good replies, I'll add my 2cts.  The
HT-37, to my mind, is essentially an HT-32 that's had the filter type
sideband generator replaced by one that is a phasing type.  They made it
easy to do, as the 2 generators are modular.  It also has been given the
(slight) weight reduction treatment to lessen the price, it has a fairly
flimsy, from BA stds, cabinet.  Be careful when removing/replacing the
chassis, it's easy to damage a HV filter choke mounted on the rear edge.
Also if you don't know any history on it, put some heat under it for a
cupla days, and start it at somewhat reduced AC voltage.  The power xfmrs
are prone to developing internal shorts.  They seem to "draw moisture" and
act with inappropriate manners.
    You can see some more, plus comparison thoughts on my website:
http://www.boatanchors.org/HT37.htm
    K9EID cks into the Vintage SB net regularly using one when he's at
home.  You expect his stuff to have great audio, this one shows off his
microphones well.  (unsolicited/unpaid remarks)
    I use the HT-32 regularly on that net, with good audio reports and it
has great stability.
    They are well designed and built, you'll learn a lot going thru either
one.  It's not a hard task, but there's a lot of circuitry.
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.boatanchors.org
http://www.hammarlund.info

----- Original Message ----- 
From: "DW Holtman" <future212 at comcast.net>
To: <Hallicrafters at mailman.qth.net>
Sent: Wednesday, August 02, 2006 2:25 PM
Subject: [Hallicrafters] Hallicrafters HT-37


> Hello,
>
> I stumbled onto one that is very clean, looks great. Have not found a
> manual or put power to it yet.
>
> Does anyone have any experience with this xmitter? Does it use phasing
> or filters to generate SSB? I have heard horror stories about phasing
> methods to generate SSB. What I'm looking for is a transmitter to pair
> up with my R-391 receiver, for a vintage AM/CW station. The HT-37 does
> not have AM, but has DSB, which will work, but how well for AM?
>
> Are there any unusual maintenance problems?
>
> Is this xmitter worth an extensive restoration and is the signal quality
> when up to factory specs worth the effort?
>
> Thank you in advance for any help.
>
> Best,
> DW Holtman
> WB7SSN