06-Feb-2012

Introduction

Through the wonder of surplus electronics, thousands of these amazing high-quality Rubidium frequency standards ("atomic clocks") are available for a fraction of their cost new.

Here is how they looked installed on their original oversized telecom circuit card. By the time most of you have bought them, the card has been sawed off by the surplus dealer, or the 5680A has been unscrewed from the PCB.

Connections

Documentation

Performance