> So does this mean I can epoxy a sandstone power resister to a junk > crystal and keep the frequency exactly perfect by varying the power in > the resister?
Sure. In fact you can loosely phase lock it to GPS that way. Your xtal doesn't need to have an EFC pin. You are using external temperature as a replacement for EFC. Call it TFC (temperature frequency control) instead. You can't get much simpler than that. Make sure to use a plain XO (not a TCXO or OCXO). I used a resistor heater to bust hanging-bridges: http://leapsecond.com/pages/vp/heater.htm /tvb _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
