[time-nuts] low power divide by 5

[Bob kb8tq]

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 <tvb at 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>_______________________________________________
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