[Test-Equipment] HP-608

[Barry L. Ornitz]

Another Barry (Tuttleman) asked:

> anyone know what the military designation is for the old HP 
> 608 signal generator (URM-XX?), either naval or army?
> TM number for manual?
> is there a cross-reference available (on-line?) for test 
> equipment going from military to commercial versions?

TS-510(A)/U was the military designation for the unit I have.  
I think the whole set with cables and shipping container is 
known as the USM-44(A).  Many military units were made by 
Hewlett Packard, but some, the A-model, were made by Nuclear 
Electronics Corporation.  They use Hewlett Packard parts and 
are virtually identical.

There were many variations of the HP-608 signal generator made 
over the years.  Most involved minor changes in the frequency 
ranges, but internally the changes were more significant, most 
being in the power supply area.  Neither of the two manuals, 
and none of the three schematics I have completely and 
accurately represent my exact unit, but they are adequate for 
most repairs.  Earlier units were all tube.  Later units had 
more solid state devices.

I would suggest checking the LOGSA site first:

     http://www.logsa.army.mil/etms/welcom1.htm

I have not checked this site lately, and if you have problems 
ask in the Milsurplus list at QTH.NET.  They used to have a 
large (2.7 M) Adobe PDF copy of the manual for download.  This 
is the operators manual and I do not believe it has a 
schematic.

        73, Dr. Barry L. Ornitz     WA4VZQ     ornitz@tricon.net