[R-390] BFO multi-turn knob+ Bourns near equivalent

[Mark Huss]

Anybody know how fast a Dekatron would count? These were tubes with a 
circle of neon dots on the front. You fed it pulses, and it would move 
the lighted dot around the circle. A divide by ten counter and display 
in one!
Bill Hawkins wrote:

>mikea said,
>
>"Sounds good. I think I could do that in between 30 and
>100 tubes. To do it all Glowbug-style, wecould use some
>of those fancy Burroughs decade-counter tubes."
>
>I still have some IBM 704 plug-in tube units, about 8"
>high by 10 wide by 1.5 deep, with eight 9 pin sockets
>and many terminal points. No sockets for the PIU, though.
>Some even have IBM brand tubes, almost all twin triodes.
>
>Don't have room for them in the 390, but it would be
>equipment from the same period.
>
>Bill Hawkins
>
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>  
>


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