[ARC5] Hallicrafters receivers.

[Geoff]

> On 13 May 2013 at 14:04, Geoff wrote:
>
>> The SX-28 was not built to any spec but their own Ken,
>
> Yes. I was pretty much aware of that: I said that mainly because in my
> (somewhat limited) experience with Halli receivers, it was the most stable
> one I ever used. I meant that as a sort of insult to Halli receiver HFO
> designers.
>
>> it was later
>> chosen for military and government service and the AN/GRR-2 version
>> was ruggedized but the circuit wasnt changed. The SX-28A was a "cost
>> reduced" version for general military service.
>
> I have always liked the looks and feel of the SX-28...
>
>> The R-274/SX-73 was built for the military and is likely the most
>> stable free running HFO that Halli built.
>
> I had a chance to use an R-274/SX-73 when I was very active in AFMARS. I
> really liked it and was very impressed by it at the time. It confirmed my
> viewpoint that the only time Halli could make a stable receiver was when 
> the
> military was involved in some way.
>
> I still cannot figure out why their receiver HFOs were generally so bad...
>
> Ken W7EKB

Easy, they bought catalog parts at rock bottom prices while the others built 
a good part of their components.
James Millen and Oskar Hammarlund were superb mechanical craftsman.

Carl


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