Alt-BEAM Archive

Message #11542



To: beam@sgiblab.sgi.com
From: Flaming Headphones headphones99@iname.com
Date: Wed, 08 Mar 2000 18:27:54 -0700
Subject: [alt-beam] Re: Diodes in microcores


Thanks Bruce,
I think I'm going to stick with the schematic Chiu has drawn and not try to
modify it to be PNC-less. I'll probably try that on another walker, but not
my first.

So for the diode then, would a regular LED do the trick? Or do I need
something special?

Thanks again,
Mike, AKA Flaming Headphones


>Hi, Mike. That inverter in the lower left is the (now) old fashioned PNC
>that extinguishes the extra pulse you get when the microcore starts up.
>You need the diode to isolate the PNC after it times out.
>
>For a 4-Nv microcore, you can accomplish the same thing much easier with
>a couple of diodes (and no PNC). Wilf came up with this a while back,
>and you should find the circuit at the Beam Heretics site.
>
>Bruce

ICQ: 17940917
E-mail: headphones99@iname.com

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