MOTM

> >I built it myself. It was inspired by the verbal description of the Serge
> >catalog back then. (I've never seen the original circuit.) I have
> >published my version of the circuit some years ago, it's at
> >http://home.debitel.net/user/jhaible/additional_schemos.html
> >(look for "voltage controlled divide-by-N".)
>
> That looks quite imaginative!!  I'm having a bit of trouble understanding
> how the "staircase" generator works.  However, I do understand how its
> amplitude increases by one "stair" for each input pulse until it reaches
> the threshold of the comparator.  It also seems to divide by 2N rather
than
> N, but it's quite likely I'm misreading something.

Actually, each slope (positive *and* negative) provides one "staircase
step",
which would be x2 / N, and this is followed by flipflop, so it's
x2 / N / 2 = 1/N.
This is to get a square wave output rather than narrow pulses.

JH.