[time-nuts] HP Z3801a piezo oscillator does work

Bob Camp kb8tq at n1k.org
Sun Dec 18 19:13:46 EST 2016


Can you pull the crystal? sure. 

Does your MV-89 have a 5 MHz crystal (the frequency doubled version) or a 10 MHz crystal? (sub harmonics viewed on a
spectrum analyzer are a really good way to tell). 

Is the crystal the same size / pinout? Probably not. HP used an odd package. You might be able to make a spacer. 

Will it hit the right frequency? Likely not without changing some parts ….


> On Dec 18, 2016, at 5:55 PM, Mark Sims <holrum at hotmail.com> wrote:
> I have a wonky Morian MV-89... probably the well know output cap failure.   I wonder if one could pull the crystal out of that and stick in the HP10811?  Something tells me Bob would know  ;-)
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