Try http://www.realhamradio.com/GPS_Frequency_Standard.htm
Far more stable than cutting your own crystal, can't imagine why you think making one yourself would
be more stable than a good surplus xtal and oven.

Steve H

"Airy R. Bean" wrote in message
...
I wish to make a master oscillator for the shack, and am considering
cutting my own crystals in order to reduce ageing. Is there a source
of raw material?

Also, for temperature compensation, I am considering the use of bi-metals.
(I've never seen one, but what is the mechanism used in Oxley's
Tempatrimmer?)





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