[R-390] URM 25 D Signal Generator
Roy Morgan
[email protected]
Fri, 17 Jan 2003 15:05:14 -0500
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] --