[Milsurplus] AN/URM25-J

[Mark Richards]

On 12/04/2013 01:25, WA5CAB at cs.com wrote:
> And the SG-85B/URM-25D used in AN/URM-25H has an oscillator
> filament regulator board added that is not in the first two versions.  The two
> diodes are 1N540's.  The two capacitors are 2200 uf 10 VDCW.  The two
> resistors are 15 ohm 5W.  And the zener is a 1N3998A 6.2V.  Probably the same
> board.
That's exactly this board!  You must have a schematic that's better than 
my URM25D schematic.  But I looked at BAMA and there's nothing for a 
URM-25H.

/k1mgy