Alt-BEAM Archive
Message #02531
To: beam@corp.sgi.com
From: "Jaroslav 'Lord Slayer' Pelan" pelanj@feld.cvut.cz
Date: Wed, 21 Apr 1999 14:28:02 MET-1MEST
Subject: [alt-beam] 555, 3909 SE
Hello,
I was just sitting and doing nothing. And then an idea came. And
beceause I don't want to re-invent the wheel, I'd like to ask: Has
someone used 555s in type II SE before? They're supposed to be
timers and are very cheap.
My second thought was: How about the LM3909 photovore? how
shall i make it? freeform? No. - HEUREKA - How about putting the
two ICs, caps and diodes into a say 2x16 pin DIL socket? I think it
would look cool to have the smaller capacitors peeled and glued to
the side. they will look like silver eyes.
marked side
_______ __________________ _______
| | | |_ | | _| | | |
|______/ {___|_____|_|____ |__ | \______|
cap IO1 IO2 ^ cap
|
place photodiodes here on each side
caps' leads bent 90 degrees to side
pretty messy eh?
nevermind. look at the scheme(search the web)it's simple and
whatsmore, symetrical. I'd draw a picture but MS paint says i don't
have enough memory (alhough i run just PMail on 64 MB )
Is this a re-invented wheel too?
Please let me know.
JP
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And now something completely different ...
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