Alt-BEAM Archive

Message #12453



To: BEAM Mailing List (E-mail)
From: Scolman,Jim [mailto:ScolmaJi@amsworld.com]
Date: Fri, 24 Mar 2000 13:41:49 -0500
Subject: ...a new web site.....



Good morning All, if you want to take a minute, have look at my new robot
web site, the site is not robotic, it is about B.E.A.M. robotics. It is a
vanity page, so be gentle with me. Thanks.....JWS.

Jim Scolman
AMS Services, Inc.
Bothell, WA
425-402-1000 x353
206-910-6095
scolmaji@amsworld.com
Network Administrator



12454 Fri, 24 Mar 2000 14:03:08 -0500 [alt-beam] Re: Logic puzzle - cool! Try this tougher one... :-) beam@sgiblab.sgi.com Richard Weait At 09:49 PM 3/24/00 +1200, Justin wrote:
>I just made another circuit solution, much simpler than my first.
>Breadboarded it and everything works great, and doesn't seem at all
>affected by voltage - a circuit I can actually use!
>8 components. Any bids below 8 components? :-)

Hi Justin,

The truth table in your latest circuit is different than the
truth table in the preceding message. In the circuit diagram
truth table the second output has three 'high' states. Which
is correct?

I'm having trouble with the circuit, too. Where you show the
lower transistor connecting to the lower switch; is that also
connected to the lower output? For the base of the upper
transistor you've drawn a curved jumper section to show that
it does not connect to the upper switch. I'm told that curved
symbol has fallen out of favour! Current industry preference
is that crossing wires do not touch, and connecting wires are
shown by a three-way "T" intersection.

I know that isn't always convenient, especially when I am drawing
in ASCII (or emphasizing a single point ground). So I try to show
the variations from these suggestions explicitly.

Cheers,

Richard.

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