Hi For vacuum tube divide by 5 / 10 circuits, take a look at the schematics of the Beckman EPUT meters…..
Bob > On Jul 2, 2020, at 9:48 AM, Tom Van Baak <t...@leapsecond.com> wrote: > > > I'm surprised nobody has suggested using the 12AX7 or 6J6 dual triodes. > > Jim, > > Funny, just yesterday I was looking at the design of a laboratory cesium beam > standard from 1963. Sorry, there's no divide-by-5 example in there. But the > attached images show the 108x multiplier (8.5 MHz to 9180 MHz). Sure enough, > spot the 12AX7 and 6J6 tubes in use... > > /tvb > > <1963-cesium-1.jpg><1963-cesium-2.jpg><1963-cesium-3.jpg>_______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.