[time-nuts] Digital Clock kit - no Integrated circuits!
Bob Camp
lists at cq.nu
Sat Jan 9 02:10:34 UTC 2010
Hi
It seems like the diode to resistor ratio is a bit off in that design.
In order to go into further detail, I would have to admit to starting out in the pre-integrated circuit logic era ....
Bob
On Jan 8, 2010, at 8:07 PM, Tom Clifton wrote:
> http://transistorclock.com/ has a very interesting (though a bit expensive) kit for sale. A 10" x 11" circuit board sporting nearly 200 transistors and 600 diodes to drive six seven-segment displays. Suitable for framing... As delivered runs on 60hz but there is a note about conversion to 50hz mains. You can buy a bare board, just the components or a full kit.
>
> You must see it to believe it!
>
> Tom
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