[time-nuts] Re: FE-5680A Adjustment board

[Tom Van Baak]

Hi Luca,

 > since it looks like a device becoming obsolete...).

That's never been a deterrent to time nuts; we live for eBay specials: 
the cheaper, older, obsolete, the better. In particular the FE 5650A and 
5680A are a favorite here because so many have been available on the 
surplus market, thanks to upgrade cycles in the telecom industry. Your 
project & contribution is very welcome. See also:

1) The most detailed document on the FE 5650A ever written. Not just an 
article, more like a book, donated to time nuts, by Michael Parker (324 
pages):

http://leapsecond.com/u/parker/ParkerIntroRFS-PPCP.pdf

2) The best introduction to Rb from a physics and design perspective 
(163 pages), by Bill Riley:

http://www.wriley.com/Rubidium%20Frequency%20Standard%20Primer%20102211.pdf

3) Also by Bill Riley, a thorough history of Rubidium clocks (35 pages):

http://www.wriley.com/A%20History%20of%20the%20Rubidium%20Frequency%20Standard.pdf

/tvb