[time-nuts] AN/URQ-10A standard docs

[Dave M]

Walter Shawlee 2 wrote:
> Does anybody have the manual for this old standard? mine works, but is
> a bit high, and needs internal adjustment, and a new battery pack.
> pretty good condition for this old unit, and the 5MHz output is only
> 4.8Hz off after heaven only knows how many years in a dark corner.
> it's only been running for 12 hours, so it might drift in after 30
> days at the oven temperature, but my offset adjustment is maxed out.
>
> I have had good luck converting the older 5Mhz standards to 10Mhz
> using a cheap chinese doubler board off ebay and a 10Mhz bandpass
> filter. the results were great (although about 6dB down from the
> original level), and made them a bit more useful around the shop as
> an external reference.
> Any PDF would be appreciated. All my web searches were total dead ends
> so far.
> all the best,
> walter


Download Navships 0967-170-3010 for the URQ-10A at
http://www.navy-radio.com/manuals/urq10a-man-0967-170-3010-6609.pdf

Seems to be pretty complete, with schematics, maintenance and calibration. 
Wish I had a URQ-10A; they were pretty good instruments in their day.

Cheers,
Dave M