[Hallicrafters] SX-73 VS: SP-600-JX Comparision question

[Al Parker]

Hi Richard,
	I have both, but haven't used the SX-73/R-274 much lately.  I wrote up 
a comparison of features several yrs ago when I got the Halli, may have 
it in "e-transmittable" form.  If anyone would like to see it, drop me a 
note.  I got another R-274 a cupla yrs ago, it had a very touchy band 
change, maybe I didn't spend enuf time getting into the nittygritty 
before I passed it along.
	Carl's given a good viewpoint.  I like the tuning even better than the 
SP-600, which I do really like.  Like he said, it's not your everyday 
Halli.  It's made to mil. specs.
73,
Al, W8UT
www.boatanchors.org
www.hammarlund.info

"There is nothing -- absolutely nothing -- half so much
worth doing as simply messing about in boats"
Ratty, to Mole


On 11/3/2010 5:14 PM, Richard Knoppow wrote:
>        I have long been curious about the relative
> performance of the SX-73 and SP-600-JX. The SX-73 was
> obviously built to meet the same military spec and bears the
> same military type number. It is not a clone but a unique
> design. I have seen very few and never actually used one. It
> has some features that look interesting such as regulated
> filament voltage for the oscillator. I've found that the
> SP-600-JX drifts with line voltage changes due to
> sensitivity of the filaments to the variation. It also
> appears to have a less delicate turret mechanism. I am
> curious to hear from those who actually have these receivers
> and can tell about their performance and how difficult or
> easy they are to work on. One merit of the Hammarlund RX is
> that its relatively easy to repair despite the complexity of
> some parts.
>       Also, does anyone have any idea of how many SX-73s were
> built and over what time period.
>
>
> --
> Richard Knoppow
> Los Angeles
> WB6KBL
> dickburk at ix.netcom.com
>
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