[Boatanchors] Fw: Hammarlund SP600 Model Number Document

[rbethman]

The Northern Radio version, R-450/FRR-28 was the first diversity version 
that I know of AND without the crystal control option.  They were J-11s 
NOT the later JX-xx group.

Bob - N0DGN

Nick England wrote:
>
>
> Hammarlund made all the SP-600's -  Northern Radio bought them to 
> modify as evidently did TMC and probably others.
> Lots of good info on this site - http://www.hammarlund.info/sp600.html
>
> The R-274A/FRR is a Hammarlund SP-600 and so are the R-274B/FRR and 
> R-274C/FRR
> - The R-274/FRR, however is a Hallicrafters SX-73 and is quite 
> different from the SP-600 - no relation other than both can be used in 
> an HF communication system.
>>
>> ----- Original Message -----
>>>
>> Arden Allen wrote:
>>>>
>>>> Good point.  Who all made SP600's?
>>>>
>>
>
>
> _______________________________________________
>

-- 
Bob - NØDGN