[time-nuts] Re: Varian V-4700A Rubidium Standard

[Jeff Huselid]

   I had one of these, it went to Corby Dawson years ago. I had the power
   supply/battery charger too ( 28V 5A ) but it ended up somewhere else.

   Regards, Jeff Huselid

   On 9/27/2023 2:45 PM, Chris Quayle via time-nuts wrote:

     Found this on the usual site:
     [1]https://www.ebay.co.uk/itm/394869426524
     Part of a collection of test gear found in a barn
     by a house clearance company. Could not resist and
     a 340 mile round trip to Cheshire to collect it. A
     real two man lift, must be 80-100 lbs. Some
     corrosion inside the open frame case and looks like
     it needs an an external psu, but should be a great
     restoration project.
     Not much info on the web, but there is a paragraph
     and more in the William J Riley "The History of the
     Rubidium Standard". Turns out that this was one of
     the first commercial examples of the type, from
     around 1962. All solid state, other than a double
     triode oscillator for the lamp exciter.
     Has anyone here seen or used this type, and can a
     manual be found for it ?. Serious historical interest
     item and would be great to get it running and compare
     against more modern types...
     Chris
     _______________________________________________
     time-nuts mailing list -- [2]time-nuts at lists.febo.com
     To unsubscribe send an email to [3]time-nuts-leave at lists.febo.com

References

   1. https://www.ebay.co.uk/itm/394869426524
   2. mailto:time-nuts at lists.febo.com
   3. mailto:time-nuts-leave at lists.febo.com