Alt-BEAM Archive

Message #12441



To: beam@sgiblab.sgi.com
From: Scott Burns s-burns@uiuc.edu
Date: Fri, 24 Mar 2000 06:14:45 -0600
Subject: [alt-beam] Re: Logic puzzle


While we're on the subject, I was wondering if it is possible to create a
simple inverter from passive components only, that is:

in out
1 0
0 1

I have one stage of my circuit asserting a high to an enable on the next
stage that wants to see a low instead. I know I can do it with a transistor
and a couple resistors. I suspect it is impossible with passive components.

Scott



12442 Fri, 24 Mar 2000 08:06:14 -0500 [alt-beam] Re: Dumb newbie Q. "William Cox"
> Current: Needed! No question about it.

I don't agree. I've gotten along fine without it. Just use a resistor and
voltage measurement. In many cases this is superior, because you know the
size of the "test" resistor.
-William

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