[Milsurplus] What is the frequency range for this receiver ?CY-1345/GR

[WA5CAB at cs.com]

To be more precise, it is an R-274D/FRR.  The SX-73 variants of the R-274 
are R-274/FRR and R-274D/FRR.  The SP-600-JX variants are R-274A, R-274B and 
R-274C/FRR.  

The "second source" contracts were for the SP-600's.  The original order 
was for the SX-73 variant.

I recall a knock-down drag-out flame war on one of the lists a few years 
ago over this exact subject.  Two hams each had some variant of the R-274(*).  
But one was Hallicrafters and one Hammarlund.  It was a dead ringer for the 
story of the elephant and the three blind men.  Fortunately, this is a 
scenario that only occurred a handful of times over the half century that the 
Signal Corps and US companies built radio equipment for the US military.  
Mostly, subsequent models of a set look pretty much like the base set.

The SP-600 had several other nomenclatures, at least one of which 
(R-320A/FRR) was also shared with a different receiver.

In a message dated 6/17/2009 9:23:43 PM Central Daylight Time, 
wf2u at ws19ops.com writes: 
> It's a military Hallicrafters SX-73, the R-274 which is also the military
> nomenclature for the Hammarlund SP-600. The SX-73 covers exactly the same
> frequency range as the SP-600, i.e. .54 to 54 MHz.  It's the "second 
> source"
> contract and was considered directly interchangeable with the SP-600, 
> hence
> the same military number. The specs are the same as the SP-600, although 
> the
> circuit and the mechanics are completely different.
> The CY- number shown on the site is the military nomenclature for the
> original desktop cabinet. These are much more scarce than the receiver
> itself. 
> 
> 73, Meir WF2U
> Landrum, SC
> 
> -----Original Message-----
> From: milsurplus-bounces at mailman.qth.net
> [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of John Hutchins
> Sent: Wednesday, June 17, 2009 8:54 PM
> To: milsurplus
> Subject: [Milsurplus] What is the frequency range for this receiver
> ?CY-1345/GR
> 
> Gd-evening all -
> At the E-place  Item number: 150352033021 What are the freq bands this
> covered?
> Googled garbage

Robert & Susan Downs - Houston
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MVPA 9480