On 05/16/2011 12:01 AM, [email protected] wrote:
I think you're right that you can't drag a 32768 crystal down by one
part in 365.  Maybe you could do it by opening the can and putting some
mass on the crystal resonator?

Some mass should be removed, not added. I was considering this possibility.
They exist some so called "tuning fork" crystals that might allow for this.
And
they are very cheap. One could buy a batch of them for a few $ and have a
try.
What do you think?

You only need to carve away sufficiently for being able to pull the rest. If they are cheap you can buy a bunch and afford to go too far on a few attempts. At least it would be a bit unique by todays standards.

Cheers,
Magnus

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