Dr Bruce Griffiths wrote: > Dr Bruce Griffiths wrote: > >> Tom Van Baak wrote: >> >> >>> Don, >>> >>> Yes, using an oscilloscope in this way is a time-honored >>> trick to observe slow changes in relative phase over time. >>> >>> Stuff clipped >> Tom >> >> One could always use an HP K34-5991A (or equivalent phase comparator) >> connected to a strip chart recorder. >> Failing that an equivalent device should be easy enough to build and it >> could be connected to a DVM or other low resolution ADC which in turn is >> connected to a computer for data logging purposes. >> >> Bruce >> >> _______________________________________________ >> time-nuts mailing list >> [email protected] >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> >> >> > Tom > > Additional info on K34-5991A > Manual available at: > http://www.to-way.com/k34599a.pdf > > Since the circuit uses 2 line receivers, a dual flip flop an exclusive > or gate and an opamp, designing/building an equivalent instrument should > be fairly simple. > > Bruce > I built my own version of this scheme and it works OK but mine has some "issues" So I would like to have at least three of these.to replace my one.
Anyone willing to take on the job of designing a circuit board? I log my results with a A-D converter and my Basic program Bill K7NOM _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
