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Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 0
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 1
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 2
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 3
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 4
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 5
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 0
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 1
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 2
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 3
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 4
Tracor Model 304D Rubidium Clock – Master Clock w/Patek Philippe Clock, US $650 – Picture 5

Tracor Model 304d Rubidium Clock – Master Clock W/patek Philippe Clock

US $650

  • Allison Park, Pennsylvania, United States
  • Feb 20th
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This Tracor Rubidium Standard/Clock has front panel outputs of 5Mhz, 1Mhz and 100Khz as well as 1PPS and a 1PPS delayed output which can be manually set (in the panel behind the clock) in microsecond and millisecond increments. It also has bnc jacks for positive and negative synching of the clock/outputs. The magnetic field and oscillator adjustments as well as circuit metering are behind the left front panel which also includes a fast/slow switch for the battery charger.  One interesting aspect of the Tracor Standard is that the front panel mechanical clock was made by Patek Phillipe. It ticks and sounds like a clock and has a distinctive black 12/24 hour dial.  Patek provided clocks of this type to many manufacturers of time standards and I believe they continue to do so today for their own time standards. The unit is in excellent cosmetic shape

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