[time-nuts] How far can I push a crystal?

[Volker Esper]

My friend Karl-Heinz DJ7NN has dragged/jerked/teared/wrenched crystals 
even more (what is the most nasty description of "pulling" a quartz 
crystal?) - if need be, he opens it and strikes a brush over it to 
carefully grind some material, what makes it oscillating a little 
faster. If you've ground too much, make a stroke with a pencil on it and 
it will oscillate slower. But the aging...

Ok, the drawback is, you won't get a "very clean" signal...

In my humble opinion, as Ed told before: forget about it.

Volker




Am 18.01.2013 00:59, schrieb Rick Karlquist:
> Ed Breya wrote:
>> I've got to make a very clean 10.05944444... MHz VCXO for a redo of one
>> of my old circuits. I previously used a 10 MHz ceramic resonator, which
>
> Forget about it.  This is well beyond even the lunatic fringe of pulling.
>
> Rick
>
>
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