Uploaded January 2025 | Updated September 2026, 2 weeks ago

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In this video, I did a teardown of a vintage TOYOCOM TCO-627VC 10 MHz OCXO and compared the temperature stability with a standard crystal oscillator. I also checked the long term frequency stability of my counters with a Rubidium frequency standard.

Teardown of another OCXO: kerrywong.com/2014/07/01/hp-5350b-ocxo-repair
How Much did the OCXO Drift Since the Last Calibration: youtu.be/0WPGOsPHsMo

00:00 Overview, standard oscillator temperature stability
01:48 10 MHz OCXO
02:42 Teardown
05:27 Measuring the Rubidium frequency standard