[R-390] URM 25 D Signal Generator

Fri, 17 Jan 2003 15:10:12 -0500

Roy, where can one find all these goodies on the URM-25D??
mike
kc2kj

Roy Morgan wrote:
> 
> At 01:13 PM 1/17/03 -0600, [email protected] wrote:
> >http://bama.sbc.edu/ under 'Military Test Gear'
> >
> > >
> > > I am trying to repair two URM 25D Signal Generators but I need the
> > > schematics.
> 
> You also need any or all of the following, ESPECIALLY Dallas Lankford's
> Overhaul Notes:
> 
> Hollow State Newsletter
> Issue 41, Spring 1997
>    - URM-25D Rebuild Notes Supplement (about the Terminal Board, Courtesy
> of Ray Mote)
> 
> HSN Issue 34 Winter 1994-95.  Short Subjects: "Balky Modulation Oscillator
> in the URM-25, by Allan Douglas (about the R-C "T network" and padding a
> capacitor to make it work again)
> 
> E-mail from Nolan Lee to Roy Morgan Dec 22, 1998 advising to replace the
> coax cables found with URM-25's since they are often lossy, replacing the
> coupling cap in the "Test Lead" to prevent damage to the attenuator, and
> checking all cap and resistor values in the generator.
> 
> URM-25D Overhaul Notes by Dallas Lankford 11-88, revised. 1-94, with copy
> of HSN Supplement from Issue 41 about the "Terminal Board".
> 
> Signal Corps SSTS Operation Sheet 51038, "RF Signal Generator Set
> AN/URM-25D Operation and Calibration"  U.S. Army Signal Center and School,
> Fort Monmouth, N.J. 17 pages
> 
> Roy
> 
> - Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
> 7130 Panorama Drive, Derwood MD 20855
> Home: 301-330-8828 Work: Voice: 301-975-3254,  Fax: 301-948-6213
> [email protected] --
> 
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