[time-nuts] Rubidium freq standard - temperature

[Jerry Hancock]

I was able to get all 5 of these EG&G Rubidium Frequency Standards running by replacing the caps as another member found.  They have a large heatsink on them, no fins, and are running at 43C.  Is that too hot?  Should I bolt them down to a larger heatsink?  They consume a little over 9w after they lock, about double that while warming up.

The only other issue I see is that the 8bit frequency setting doesn’t allow me to set the frequency closer than 5E-11.  I don’t know if this is good for these units and RFS in general or not.

Thanks.

Jerry

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PS:  I have learned quite a bit from this group in the past couple of months.  John Miles, Gilbert, Mark Sims, Bob, etc, etc have been a lot of help and have added a lot of enjoyment to my hobby.  

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