The attached is one that I drew in Eagle. Divide by 10 (from 50Hz) then 5 to get 1Hz. A copy of published designs. Works very well, easy to tune the two stages to the required factor. The divide by 5 will divide by 6 as well.
Grahame
------------------------------------------------------------------------*From:* [email protected] [mailto:[email protected]] *On Behalf Of *threeneurons*Sent:* dinsdag 11 februari 2014 20:00 *To:* [email protected] *Cc:* [email protected] *Subject:* Re: [neonixie-l] Elesta EZ10/A/B tester refurbished!Morris used it in his timebase, as a divide-by-5 stage, and a dekatron, for a total of divide-by-50. That clicked a relay at 1 pps, to increment his stepper relay nixie clock. It was all mounted vertically on a pole, IIRC.I bought a bunch of 6AS6 pentodes shortly afterward, and ran a few phantastron experiments. For a divider, it works like a one-shot, that needs its cycle to stop just short of the intended time. Say your using 50Hz as your syncing signal, and you want 10Hz out. Setup your RC timing of the phantastron to between no less than 80mS+ (say 81mS), and no more than 100mS- (say 99mS). That is adjust it to between 81 to 99mS. Split the difference, and put it at 90mS. As long as it stays in that range, it will output a sync'd signal at 100mS (10Hz). If you are using 60Hz, instead, then that 80mS+ (4 cycles plus) becomes 87mS+ (5 cycles plus). Keep the divisions small, since they're dependent on the RC component tolerances, and drift factors.
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