corby d dawson wrote: > Hi, > > I am playing with an Austron 1250B and I'd like to add a fine frequency > adjust. > > The data sheet I have on the 1150 oscillator inside indicates that the > EFC input is an option. > > Anyone have a schematic for the 1250B that shows how the 1150 is wired > in. > > If no EFC on this unit I'll be getting rid of it. > > Thanks, > > Corby Dawson My 1250A manual shows the EFC being brought out to the rear panel, The front panel EFC is "over powered" by the voltage put on the rear panel connection. My manual has two interconnection diagrams for the wiring. They both show the BNC connector on the rear.
The external EFC is spec.d at + or - 5 Volts Good luck on the B model Bill K7NOM _______________________________________________ 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.