[time-nuts] Symmetricom 1111C OCXO question

Javier Herrero jherrero at hvsistemas.es
Thu Apr 3 19:51:15 EDT 2014

On 03.04.2014 18:25, Azelio Boriani wrote:
> Other idea than leaving the 6K8 resistor?
Yes... I would prefer to know why the little thing has stopped working. 
The 6k8 resistor has also probed to be a marginal solution. The 
operational amplifier is a Burr-Brown one (don't have the p/n at hand 
now), and since it was my first suspect, I replaced it with a similar 
(but not the same) part from Linear Technology that I had at hand. With 
this one, I tested the resistor trick. After concluding that the 
original opamp was ok, I have put it back. With the original one, the 
resistor trick did no longer work, so it was not only a dirty solution, 
but also very marginal. So... I would prefer to find and solve the real 
failure :)



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