[time-nuts] Varian R-20 Rubidium Frequency Standard
eb4apl at cembreros.jazztel.es
Tue Nov 4 21:02:37 EST 2014
In the Apollo era, NASA's Manned Space Flight Network tracking stations
had a standard frequency rack called PFSS? which included a Varian R-20
among a couple of crystal oscillators (HP or Sulzer, I don't remember
quite well) and perhaps an HP 5065A with a switching matrix,
distribution amplifiers and ancillary equipment.. These were the only
R-20s that I have ever seen.
On 04/11/2014 a las 16:58, paul swed wrote:
> Wow varian made RBs. Learned something today and sorry no manual.
> On Tue, Nov 4, 2014 at 10:34 AM, Adrian <rfnuts at arcor.de> wrote:
>> I got a nice old Varian R-20 rubidium frequency standard that would be
>> nice to get working.
>> To begin with, there is at least a problem with the voltage regulator
>> Does anyone have a manual? I couldn't locate anything on the web.
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