Alt-BEAM Archive

Message #11535



To: beam@sgiblab.sgi.com
From: Marcus Cole marcuscole@endirect.qc.ca
Date: Wed, 08 Mar 2000 19:01:57 -0500
Subject: [alt-beam] Re: Transistor codings


Thank you Russ and Rob for your links, they have helped me alot!

P.S. excuse my long delay, overworked in school homework.
At 19:51 07/03/00 -0500, you wrote:
>
>The January 2000 issue of Nuts and Volts had a little section called "In
>Search Of The Lost IC" (p. 83). Here's a summary of what they have to say:
>
>Step 1 - Try to identify the manufacturer. These tables will help:
> ftp://ftp.nutsvolts.com/pub/nutsvolts/library/icprefix.doc or
> ftp://ftp.nutsvolts.com/pub/nutsvolts/library/icprefix.pcx
>
>Step 2 - Try http://www.questlink.com. Then try dropping the prefixes and
>suffixes... just search for the number. You might find an identical chip
>by another manufacturer.
>
>Step 3 - Try some online catalogs (search for just the number again):
> http://www.digikey.com
> http://www.techam.com
> http://www.mouser.com
> http://www.alltronics.com
> http://www.jameco.com
> http://www.newark.com
> http://www.alliedelec.com/default.asp
>
>Step 4 - Look for replacement parts from http://www.nteinc.com
>
>Step 5 - If all else fails, here are a few more obscure dealers to try:
> http://www.batnet.com/justintime/JUTIC.html
> http://www.onlinetechx.com
> http://www.drcomponents.com/stockcheck.html
>
>
>Credit goes to TJ Byers and Nuts and Volts for this info...
>
>- Russ T.



No matter how straight the Gate,
How charged with punishment the Soul,
I am the Captain of my Fate,
The Master of my Soul



11536 Wed, 08 Mar 2000 17:06:28 -0700 [alt-beam] Diodes in microcores BEAM List Flaming Headphones Hello all,
I'm just looking at a walker schematic, actually the one from Chiu's site
at: http://www.geocities.com/SouthBeach/6897/ucore.jpg
and I'm just wondering what the purpose of the diode is between the #2 and
#3 pins on the 74HC14? Do all circuits like this need one(diode)?

Thanks,
Mike, AKA Flaming Headphones
ICQ: 17940917
E-mail: headphones99@iname.com

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