Alt-BEAM Archive

Message #01148



To: beam@corp.sgi.com
From: "Keagan Schpfer" keaganschopfer@hotmail.com
Date: Mon, 01 Mar 1999 21:03:46 PST
Subject: [alt-beam] More Questions


I have some more questions that i would like to know the answers to:

1) I have been noticing that when people want more current, they will
stack the 74hct245's. Why is this? Why don't you put them in parallel?
Would that lower the current gain?

2) Also, I have a couple of DM74LS240 Octal 3-state Buffers/line
driverrs. Would I be able to use these to drive motors?

3) What exactly is a multiplexer. I think it has something to do with
reversing your bot, but I don't know for sure.

4) I am still unclear what Nu nurons or Nv nurons are. I have the paper
Living Machines, but I wasn't able to gather enough from just that.

5) I know that this has already come up, but how can I identify SMT
componants. I have a board with a whole bungh of SMT componants on it.
Can I just heat the other side of the board to unsolder them?


Thanks

KEagan schopfer

P.S. I am sorry about that e-mail mess, but Hotmail isn't very good.

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