I got my self PM6680, so needed Better Time base for as default it has a generic crystal. But I can not get any OCXO units not even from china. So I decided to make my own.
I have made Open source design you can pull gerber from github and just order you own PCB if you deem fit. I keept high quality in mind. Source is available in my github the boards.
https://github.com/circuitvalley/PM6680_PM6681_OCXO_time_base_optionBlog entry
https://www.circuitvalley.com/2022/05/diy-fluke-philips-pm66xx-ocxo-10mhz-oven-oscillator-option-board-for-pm6680b-pm6681.htmlI am using a Brand new CTS 196 Oscillator (I have only a few brand new old stock Oscillators)
Specs of OCXO Are Temp : 5PPB , Aging Daily 1PPB Yearly 300PPB.
Oscillator can be calibrated using 20 Turn High quality original Vishay.
All boards will be calibrated against GPSDO right before shipment.
70 EUR Including shipping within DE, For rest of the world Additional 12 EUR for Shipping.
Payment Paypal or SEPA
Drop a PM if feel this is what you would need.