[Hallicrafters] HT-9

[Carl]

That HT-18 is working fine Dennis on the gray HT-9 and its currently used 
with a SX-42. Im using a prewar Meissner with the black one and the SX-28.

They are sitting stacked with a couple of 2x3's providing some air space so 
the lower one is strictly a monobander for now!

I did replace the 866's with their black plug in SS replacements and both 
have silent muffin fans moving some air around. I get around 125W on CW and 
100 on AM with all selected tubes; the SS rectifiers made a very little 
difference in the HV.

Carl
KM1H


----- Original Message ----- 
From: <radioart at frontiernet.net>
To: "Wilson Lamb" <infomet at embarqmail.com>
Cc: "BOATANCHORS" <BOATANCHORS at puck.nether.net>; 
<hallicrafters at mailman.qth.net>
Sent: Wednesday, May 11, 2011 8:18 AM
Subject: Re: [Hallicrafters] HT-9


> Hello Wilson,
>
> I had two HT-9's some years ago while I lived in CA.  Very nice 
> transmitter.  Great audio with the 4 6L6's and 814 final.  Puts out about 
> 80w in AM mode and the audio BW is quite wide, something like 7kHz if I 
> remember right, so you should sound very nice....
>
> It uses plug in coils to get on each band.  I use to have a complete set 
> of all the interstage coils but only had the 80m output coil.  You can 
> make all the output coils you need, they are pretty simple.
>
> I just recapped the unit and make sure all the resistors, tubes and 
> transformers were good of course and she worked as advertised.
>
> I drove mine with two different VFO's over the course of a couple of 
> years.  One was the HT-18 (which Carl has now) and the other was the 
> Millen 90700 (which I'm using in my Millen station now).
>
> The one I got working had a several flash over's from the 866's and opened 
> up the HV winding of the HV transformer.  Thats where the spare HT-9 came 
> in.  It donated its HV transformer and I replaced the 866's with 3B28's 
> and all was well for many years.  I sold mine in 2000 just before I moved 
> back to MN.
>
> Have fun, its big but a nice conversation piece when on the air....
>
>
> 73's
>
> Dennis KØEOO
>
>
>
>
>
> ----- Original Message -----
> From: "Wilson Lamb" <infomet at embarqmail.com>
> To: hallicrafters at mailman.qth.net
> Cc: "BOATANCHORS" <BOATANCHORS at puck.nether.net>
> Sent: Tuesday, May 10, 2011 5:51:33 PM
> Subject: [Hallicrafters] HT-9
>
> OK, I now have not one but TWO HT-9s!!
> And I would appreciate real world experience reports.
> Have you run one?
> Dioes it work as expected?
> What are the major problems?
> Do you have extra output coils that are not falling apart?
>
> How does one get them out of the case?
>
> My goal is to drive one with a vfo, ideally a DDS VFO hidden in the 
> cabinet,
> to not be dependent on crystals.
>
> It's an interesting rig.  A no compromise collection of just what one 
> would
> build in the shop, from a collection of articles.  I sure hope the xfmrs 
> are
> good!
>
> Lookiing forward to hearing from owners,
> Wilson
> W4BOH
>
>
>
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