| Brand | HP |
|---|---|
| Country of Origin | United States |
Check the listing for details. HP-5061A Cesium Frequency Standard - Parts Only - Complete Unit. Condition: Used, Made in United States. Listed at 2000.00 USD. When I first got this unit I couldn't get any ion pump readings. After 2 months, I learned that without ion pump reading the unit is inhibited from operation. I left the base of the inhibit transistor disconnected and it is still disconnected.