The GPS Disciplined Crystal Oscillator - Part 2

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*What is a GPS Disciplined Crystal Oscillator
*Time keeping
*Crystal Oscillators
*Symmetricom TrueTime XL-DC GPSDO
eBay seller I used to purchase my Symmetricom:
https://www.ebay.com/usr/prostudiocon...
*PLL-GPSDO GPS Tame Disciplined Clock Sine Wave GPS Receiver:
https://www.ebay.com/itm/PLL-GPSDO-GP...
Accutron Spaceview History
http://www.accutron214.com/accutronsp...
Dave Jones / EEVblog Accutron Spaceview review:
EEVblog #920 - World's First Transistor Watch!
   • EEVblog #920 - World's First Transistor Wa...  
Tuning Fork Clock
http://physics.case.edu/about/history...
Walk-through-time-revolution-timekeeping:
nist.gov/pml/walk-through-time-revolution-timekeeping
#60: Basics of Phase Locked Loop Circuits and Frequency Synthesis by Alan / w2aew
   • #60: Basics of Phase Locked Loop Circuits ...  
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