[time-nuts] Is this ocxo salvageable?

Chris Albertson albertson.chris at gmail.com
Wed Apr 9 06:46:48 UTC 2014

My Bliley square wave 10MHz OCXO was working just fine for close to 30
hours until a few hours ago.  Now it puts out a rather noisy waveform about
one volt peak to peak.

Two questions:
(1) Are these things repairable, the metal can is soldered.

(2) As you can see in the attached oscilloscope photo the OCXO still puts
out a strong 10MHZ component.  What is the best way to filter this and
recover a good 10MHZ square wave?

In the linked photo, both channels are set to 1 volt per division.  The
large sine wave is from a Trimble Thunderbolt and the smaller wave is from
the failed ocxo  The EFC is left open (disconnected) and a you can see the
frequency is spot on 10MHz.


Chris Albertson
Redondo Beach, California

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