[time-nuts] PIX of some vintage Rubidium optical units

cdelect at juno.com cdelect at juno.com
Sun Feb 4 23:55:21 EST 2018

While sorting some stuff for a new project took a PIX of these vintage
classic Rubidium optical units.

Top is the Varian V4700 (first commercial Rubidium Standard.
Middle left is the Varian R-20
Middle right is the Tracor 304D/308A
And last but definitely not least the HP 5065A


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