At 5/23/2006 07:20, you wrote:
> >
>One other thing you might try - tape a 100 ohm 1 watt resistor to the
>side of the crystal and put 12 VDC across it. Not a pretty sight, and
If you're going to heat the crystal, might as well use something that will
keep it at a more or less stable temperature: a 50 ohms 50 degree C PTC
thermistor. Digikey has them for $1.68 each (manufacturer part #
RL3006-50-50-25-PTO). Desolder one of the leads & solder the disk directly
onto one side of the crystal, ground the crystal case & apply a regulated
voltage to the other side.
Bob NO6B
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