[Boatanchors] Drake Crystals

[David Stinson]

On 9/22/2021 2:04 PM, Richard Knoppow wrote:

 >  More modern crystals are plated. The plating acts as the electrode 
on each side. This results in a more stable crystal and also makes it 
possible to trim the frequency very precisely by controlling the 
thickness of the plating. I don't think there is much you can do to trim 
the frequency.

---------------

Actually, you can move plated crystals up,
just like older crystals.  WHINK will remove
the plating very quickly, and as a result, immersing
the crystal in WHINK for just 5 seconds can make a
major move in the crystal.  How much depends on
the crystal's construction and how thick the plating.
If you try this, have a rinse container ready.  Immerse
the crystal in WHINK with a plastic or wooden tool.
It will start bubbling a lot.  Remove it in 5 seconds
and immediately, thoroughly rinse it.  Dry and see how
much it moved.
Good Luck<
Dave S.


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