TTL homebrew CPUs
pat at computer-refuge.org
Tue Jul 10 09:15:21 CDT 2007
On Mon, Jul 09, 2007 at 10:51:18PM +0100, Tony Duell wrote:
> > recycled industry application notes), that required some special circuit
> > only available at their or associated stores. Having seen the nth PIC
> > application that basically blinks a LED - what my generation built with
> > 2 transistors, 2 capacitors, 4 resistors - is lame.
> You're making me feel very old. When I was a kid, I used to make a neon
> bulb blink using one resistor and one capacitor.
I can do it with just a single resistor and a (properly aged) neon bulb,
on US line voltage. :) I can even control the rate of blinking using my
hand and an ordinary lamp. ;)
Purdue University ITAP/RCAC --- http://www.rcac.purdue.edu/
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