Jerry, The 4700A was one of the very first Rubidium standards made.
The V-4700A came first and had the distinction of having a lamp discharge oscillator that used two submini vacuum tubes in a flip plop configuration! It was rated at 10,000 hours. The X-4700A had the more familiar transistor discharge oscillator. The 3 V-4700 I have seen had been retrofitted with the transistor version. The first thing that comes to mind when you try to move one is "boat anchor" (maybe one for an aircraft carrier!) (weighs 95 pounds) I have a brochure that lists the price @ $15,900, the short term stability at 1 sec of 1X10-11th and the long term stability of 5X10-11th/year. They are "fixed" frequency units with the unit returned to the factory for a new cell if the time scale changed. I also have a copy of the manual I can reproduce at cost if you need it. Corby Dawson _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
