Hi Bob, Charles, Dr David, Ed and Magnus,

Thanks for those further helpful comments. OK, I will try seeing whether 'in between' orientations do make any difference, to provide further evidence regarding a possible magnetic effect. I'll also try the effect of tapping it with a plastic screwdriver handle. And if nothing more shows up, I'll try opening it up and looking for 'dry' or otherwise crook solder joints, etc.

I did find the idea of rubidium movement inside the bulb an interesting one, though. It's a possibility, isn't it?

Cheers,
Jim Rowe


-----Original Message----- From: Magnus Danielson
Sent: Tuesday, February 11, 2014 8:40 AM
To: [email protected]
Subject: Re: [time-nuts] How I got my FE-5680A to lock in Sydney, Australia

On 10/02/14 16:59, Ed Palmer wrote:
Hi Jim,

This behaviour reinforces my thought that there's something physically
wrong inside the unit.  I'd be tapping it with the plastic handle of my
screwdriver while I rotated it to see if it would lose lock.

Think of it this way:  Do you want to fix it now or have it fail again
in a few months when you're using it for something important?

I'm with Ed here. Keep working out the systematics of this beast,
because you want to make sure it doesn't happen again. Also, it's now
that you learn, you can then run it for 10 years without learning much more.

Cheers,
Magnus

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