[time-nuts] My NTGS50AA failed

EB4APL eb4apl at cembreros.jazztel.es
Tue Nov 11 21:06:33 EST 2014


Removing the oscillator for testing and replacing it with other if it 
was the culprit was my first option.  I have a spare Trimble oscillator 
that probably came from other NTGS50AA since it still have the foam band 
attached, but this oscillator is really aged, it needs 7.91 V to bring 
it on spot and the maximum control voltage of the NTGS50AA is 5 V.
I was trying to avoid removing the oscillator but probably it must be 
done to clarify things.

Thank you,
Ignacio EB4APL

El 12/11/2014 a las 2:40, Mark Sims escribió:
> I have seen this caused by the oscillator not responding to the EFC signal.  Fixed it by swapping in a MV-89 oscillator.
> The oscillators used in these units don't output an oven temperature monitor signal. 		 	   		
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