Tag Archives: HP 721A

Construction Toys In The Attic

A PCOXO Calibration Source

I have a 1GHz universal counter and a 5MHz function generator as well as an ancient RF generator, but I don’t really do a lot of super accurate frequency stuff to warrant a Rubidium standard (yet). In early 2012 I threw down an offer of $10 on a Bulova¬†PCOXO-HP02 oscillator, and accepted the counteroffer of $12.50.

The Bulova PCOXO-HP02 oscillator

The Bulova PCOXO-HP02 oscillator

Now I needed to figure out how I could use the thing.

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