Ed strange no body and you sent it 3 days ago.
On Thu, Jun 27, 2013 at 12:13 AM, ed breya <e...@telight.com> wrote: > I presume you used the regular 74HC04 or 74HCU04 inverter, not the 74HC14 > Schmitt trigger input type?? If the '14 is actually used, that may explain > the problems around setting the feedback biasing resistor value - you may > be overriding the built-in hysteresis to get it in the linear region. > Usually that R isn't very critical with regular crystals, but maybe tuning > fork types need more gain, or, if it's actually a '14, the input impedance > is probably lower than a regular gate, so it's loading the resonator. > > Ed > > ______________________________**_________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > _______________________________________________ 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.
