[time-nuts] nortel NTGS50AA embarrassing moment OCXO EFC Pin open circuit

[Mark C. Stephens]

I got sent a duff NTGS50AA with a crook Trimble 49422C oscillator module.
Not from Bob, he always checks his stuff, I have my vague suspicion this was sold as "untested" when the seller knew it was a dud..

Anyway, we are rearranging the workshop and I couldn't get to the Weller desolder station.
All I had on hand was an Aoyue or however it is spelt.
It is some such oem'ed or cheap copy of a hakko desolder pistol.

People warned me, it won't get hot enough for what you are trying to do, but did I listen?
Well, after pulling 3 plated through holes out, I wished I had.

I fixed the ground and 10Mhz but I can't find the EFC.
If someone has an NTGS50AA handy,
please trace where the EFC pin on the ocxo goes to where (pin on IC, buffer transistor etc)?


Cheers :)
--marki