These tested, high stability 5 Mhz Motorola (Model KXN1132AA) oscillators operate on 24 V DC, have female BNC output and can be fine tuned by removing a screw covering the fine tuning frequency adjustment, once they warm up (if necessary).
They can be used with test equipment requiring a 5 Mhz reference frequency or doubled to 10 Mhz by adding a frequency doubler circuit (not included).
For more information please see https://www.febo.com/pipermail/time-nuts/2009-January/036256.html and watch the ham Youtube at https://www.youtube.com/watch?v=TxcLSqTIhhQ
Asking $75 each plus actual shipping cost outside the Calgary area.
If interested please email me at nrossairdrie at shaw.ca