[GreenKeys] Question about URA-8 A B

[Nick England]

Maybe the date can be determined from the two manuals - I'll look at mine at
home tonight. I don't have any idea if there was a Field Change to add
blowers to the early model.
Info and photos are on my web site
http://www.virhistory.com/navy/rtty-demod.htm

Summary -
AN/URA-8A (no blowers)
two CV-89 converters plus one CM-22/URR Comparator
manual NAVSHIPS 91278  

AN/URA-8B (with blowers)
two CV-89A converters plus one CM-22A/URR Comparator
manual NAVSHIPS 91490 

Note: AN/URA-8 is a different design, manuf. by RCA with different
mechanical/electrical layout but functionally interchangeable 
two CV-60/URR converters plus one CM-14/URR Comparator
manual NAVSHIPS 91339 

cheers,
Nick
www.virhistory.com/navy 

-----Original Message-----
From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Randy or Sherry
Guttery
Sent: Friday, August 08, 2008 12:28 PM
To: greenkeys at mailman.qth.net
Subject: [GreenKeys] Question about URA-8 A B

When did the Navy realize they had "messed up" and add the fans to the 
URA-8s? All I'd ever seen were URA-8s with fans on the "back porch". 
But they don't show them or mention them in the early manuals.

best regards...
-- 
randy guttery

A Tender Tale - a page dedicated to those Ships and Crews
so vital to the United States Silent Service:
http://tendertale.com
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