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

[Greg Mijal]

Here's my two cents worth.
I've had two of the SX 73's (R 274 version)
It's more or less identical as a deluxe band cruiser.  The biggest 
difference in performance is the sheer sound volume of the SX 73.  It uses 
the big bulb version of the 6Y6 and has enough volume to literally be heard 
across the street. Sound quality is the same for Hammarlund and Halli.  The 
sx 73 also uses a ballast tube (R80) for filament stabilization but will run 
without it just fine on HF.  The SX 73 is also lower in the overall parts 
count.  One thing odd about the SX 73 is that if you use it with a 
transmitter.  The AVC takes a long time to recover and you will miss the 
other stations first three seconds or so of transmission.  Halli later added 
a relay to over come that and mounted it to the back frame.  The SX 73 meter 
is also very scotch. SX 73 parts are very difficult to come by these days.
73's
Greg
WA7LYO
Kinston NC
----- Original Message ----- 
From: "Carl" <km1h at jeremy.mv.com>
To: <anchor at ec.rr.com>; "Richard Knoppow" <1oldlens1 at ix.netcom.com>
Cc: <Hallicrafters at mailman.qth.net>
Sent: Wednesday, November 03, 2010 8:24 PM
Subject: Re: [Hallicrafters] SX-73 VS: SP-600-JX Comparision question


>
> ----- Original Message ----- 
> From: "Al Parker" <anchor at ec.rr.com>
> To: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
> Cc: <Hallicrafters at mailman.qth.net>
> Sent: Wednesday, November 03, 2010 6:54 PM
> Subject: Re: [Hallicrafters] SX-73 VS: SP-600-JX Comparision question
>
>
>> 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
>
>
> But so was the SX-28A , AN/GRR-2 Al as supposedly was the SX-88.
>
> Carl
> KM1H
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