[Hammarlund] SP600 receivers

[Al Parker]

Hi,
    You can go to The Hammarlund Historian website,
 http://www.hammarlund.info
and go to the SP-600 page
 http://www.hammarlund.info/sp600.html
    It takes a little searching in the "notes" couomn to find the R-274
designations, but they're there.
    Your R-274B is probably an SP-600-JX-6
    But, I'd suggest getting the Army Tech Manual TM11-851, which covers
all the R-274's.  The serial no. on the R-274 tag is the one to use in
determining exactly which schematic to use, there were some mods made, and
the manual contains all schematic versions.
    I really thought we had that manual on the HH website, but I don't see
it.  Andy Moorer has it on his website:
http://www.jamminpower.com/main/sp600.jsp
   It's large, and he also has it split up into 5 parts for easier
downloading.
Hope this helps,
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.boatanchors.org
http://www.hammarlund.info

----- Original Message ----- 
From: <w7ksg at juno.com>
To: <hammarlund at mailman.qth.net>
Sent: Thursday, July 20, 2006 3:36 PM
Subject: [Hammarlund] SP600 receivers


> How can I tell what series of SP600 is a R-274B/FRR.  Thanks
>
> J
> W7KSG
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