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

[John Ackermann N8UR]

I have several pages of schematics at:

https://www.febo.com/pages/hardware/AN_URQ_10/

but unfortunately not the full manual.

John
----

On 7/10/19 12:43 PM, 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
>