[time-nuts] Broken Ovenaire OSC 85-50

[Stan W1LE]

Hello Joe,

At one time I used methylene chloride, a clear liquid, to dissolve epoxy.
Took awhile, but the epoxy did soften up and I could easily chip it out.
I soaked the item in a large covered pickle jar for a couple of days.
The liquid and vapors of the solvent got to the epoxy nicely.

Caveat: This method may also dissolve other electrical components and 
you may
have to revert to chipping the epoxy out with a scalpel.

Possibly applying a few drops at a time to the area, instead of the 
complete immersion
would be better.

I would look to the Agilent website and do a document search on the end 
item: 5316B.
They may have the details, schematics, test specs, etc.

Stan, W1LE    Cape Cod    FN41sr



J. L. Trantham wrote:
> I have an Ovenaire OSC 85-50 10 MHz OCXO that is a frequency reference for a
> HP 5316B frequency counter.  It oscillates but the output amplitude is about
> 20 mV.
>
> I would like to try to repair it.  It looks like it is sealed with epoxy.
>
> Any suggestions on how to open it other than scraping the epoxy out with a
> scalpel?
>
> Also, any circuit diagrams available?
>
> Thanks in advance.
>
> Joe
>
>
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