[time-nuts] Who has a hm H Maser?

[Perry Sandeen]

 List,
The discussion about building a H Maser has been fascinating however it appears that there will be a long time period before the project reaches fruition.
My questions for those that have a H Maser are:

Where and when did you get it and what was the cost?

Exactly what do you have to do to keep it operating?

Lastly where would one look to get a GOOD used H Maser and what would it cost (rough guess is fine)?
Regards,
Perrier