[Milsurplus] URM-25G cct needed

[WA5CAB@cs.com]

Mike & Miguel,

AN/URM-25G and AN/URM-25H are modifications of AN/URM-25D.  The basic "guts" 
of all three models is SG-85(*).  I have at least one of each variant, and 
consider them the best of the family.  NAVSHIPS 0967-187-5010 31 December 
1953 (as NAVSHIPS 92134A) covers AN/URM-25D.  AN/URM-25G came in with Change 
6 dated 12 July 1965.  I have for sale a full size reprint which with Change 
7 and Temporary Change 7 dated 1 September 1969 also covers AN/URM-25H.  

There recently showed up on eBay part of an AN/URM-25J, which is also a 
modified D but I haven't yet come across the manual change covering it.  
Several of us were surprised to see a "J" and are curious as to whether this 
was the last model.  The sig gen is SG-85C/URM-25D.  The seller didn't 
mention the power supply nomenclature so we don't know whether it is the same 
as in the "H" or a further mod.

> 
> NAVSHIPS 0967-187-5010 is the one you need. Others are for C, D and F.
> 

73
Robert Downs
Houston
<wa5cab@cs.com>


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