There is a guy selling some (5) PRS-10's on Ebay for $170. Says pulled from decommissioned systems, but sold for parts. No telling if they are any good... They are listed as being "used" and not "for parts"... which I think means Ebay says you can return them.
https://www.ebay.com/itm/Stanford-Research-Systems-PRS10-10MHz-Rubidium-Frequency-Standard/183248949887?epid=1627032553&hash=item2aaa7d127f:g:dUgAAOSw0LhbDWQR
There is another guy (in Allen, Texas) that usually keeps one listed for $250... if it sells, another one pops up fairly soon. I've bought a few from him and they were all good. You do have to move 2 or 3 resistors to enable the serial port and one of the more useful signals (PPS IN?).
There is a guy selling some (5) PRS-10's on Ebay for $170. Says pulled from decommissioned systems, but sold for parts. No telling if they are any good... They are listed as being "used" and not "for parts"... which I think means Ebay says you can return them.
https://www.ebay.com/itm/Stanford-Research-Systems-PRS10-10MHz-Rubidium-Frequency-Standard/183248949887?epid=1627032553&hash=item2aaa7d127f:g:dUgAAOSw0LhbDWQR
There is another guy (in Allen, Texas) that usually keeps one listed for $250... if it sells, another one pops up fairly soon. I've bought a few from him and they were all good. You do have to move 2 or 3 resistors to enable the serial port and one of the more useful signals (PPS IN?).
