Hello to the group. Its been 2 weeks plus since I heated the FRS c up and regained lamp ignition. In fact the lamps brightened by about .5-.75v or just over 8 volts now. Not bad from below 1.83v as I recall. That may not be a valid number at all. More accurate statement "dead".
So thats been a success and I will document what I have done to add to the knowledge base created by Magnus and others ahead of me. While tinkering with this and GPSDOs for the austron 2201 project. Built a controller that worked ok and can definitely be improved on. But in parallel I programed up a VE2ZAZ controller. I want to thank Bert for his guidance. This could be a replacement for the austron 2201 internals if I can't get the original system cooking. The austrons a very nice case and good comparator but its looking kind of slim on the recovery. Back to the GPSDO My particular solution uses the 10 MC 24 volt Lucent/Piezo oscillator found in cel sites and generally come along with the Lucent RB references for nothing. In fact I don't know if anyone pays much attention to them at all. They make a nice ovenized oscillator and when combined with Bert's controller do a nice job. But what I like is the whole solution draws 2.6 Watts compared to the steady state FRSc of 9.6 watts. On battery backup this would allow a small set of 2 X 14 amp hour batteries to easily run the reference for 32 hours without killing the batteries. The other thing is that the M12+ locks up very quickly and the VE2ZAZ does a good job of getting everything under control reasonably fast. Granted it will not be the stability of a true Time-nuts solution but it will do for my typical bench needs. So there you have it projects move along. Let the GPSDO bake in a bit more and then time to document the FRSc recovery effort. Regards Paul WB8TSL _______________________________________________ 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.
