On Tue, Jan 24, 2006 at 10:09:04PM -0800, Jose Da Silva wrote:
> If all you are really looking for is to cook some paint, why don't you 
> simply use some small resistors instead of diodes.
> A PIC will source/sink 25mA, so...
> 5V / 25mA = 200ohms.
> 5V x 5V / 200ohms = 1/8watt.
> 
> Just use 200ohm resistors smaller than 1/8watt, so now you have a penny 
> each for hot resistors.
> 
> or
> 
> If you want to have fun, you can silkscreen that resistive paint used to 
> repair the rear window defrosters on cars. Then silkscreen your 
> permachange paint on the silkscreened resistors.
> 
> Just use a bit of imagination and Have fun.

Great ideas, but to address 4000-odd resistors you still need an x-y
grid. And x-y grids need diodes to work. So either way I need some
diodes, might as well make them do something usefull directly.

Hmm... Wonder if you can silkscreen diodes? Bloody hard I'm sure, but
maybe...

-- 
pete@petertodd.ca http://www.petertodd.ca
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