Fluke Philips PM66xx OCXO 10MHz Ultra high stability OCXO Time Base Option For PM6680 PM6681 Blank PCBDesigned by circuitvalley in Germany
What is it? Its a Simple Blank PCB board that will upgrade your Fluke Philips PM66xx counter's reference time base to Ultra high stability OCXO. This listing is only for blank PCB not components , No…Read More…
What is it? Its a Simple Blank PCB board that will upgrade your Fluke Philips PM66xx counter's reference time base to Ultra high stability OCXO. This listing is only for blank PCB not components , No nothing except PCB, There is another listing for assembled unit!!
Why did you make it? Quite a while ago I had written about how I upgraded oscillator of my Agilent/HP 53132A. I have recently bought a broken Fluke/Philips PM6680B Frequency counter. Though i was able to quickly fixed issues with the unit by replacing power supply capacitors, the unit still has really crappy original reference oscillator. So I decided to make my own PM9692 Ultra High Stability Oven Time Base with CTS 196 OCXO
What makes it special? This is an Open source board, Details can be found on my blog or on github. CTS 196 oscillator has specifications for Temp 5PPB while 1ppb/day and 100ppb/year aging Board only has a switching regulator to step down from 12V/24V input to Oven Oscillator Operating Voltage which is 5V. Board also has a 20 Turn Trimpot to fine adjust oscillator frequency for calibration. SMD jumper can be selected for OCXO to stay Always on or turn off while instrument is in standby. Source and complete bill of material is available in my github.
This listing is for PCB only, Images in the listing of assembled product is for reference only to view how it will look once components are installed. There is another listing for assembled unit
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