Alt-BEAM Archive
Message #06881
To: beam@sgiblab.sgi.com
From: "Chris" 123abc@chek.com
Date: Mon, 18 Oct 1999 21:03:54 -0400
Subject: [alt-beam] Someone else's mistake
This is what happened to someone in my electrical class a few weeks.
Some kids stuck 2 paper clips in one of the sockets, and one other kid passed by them and didn't notice them touched them and got a wake up call! It was so funny but I guess you had to be there.
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6882 Sun, 17 Oct 1999 12:55:49 +0800 IR object sensor and jammer Ian Bernstein
> Hi
> I've built a few IR object detectors which use the sharp IR detector and
> a 40K emitter that will give me a range of about a foot max. If I disable
> the emitter and use my TV remote I get a range of like 8 feet. Why is
> that? And is there a schematic for an emitter circuit like the one in my
> TV remote?
> Also is there a way to jam a 40K object detector so it won't pick up an
> object that has the jammer on it. I think I remember something about
> emitting a 80K signal but I don't remember.
>
> Thanks, Laterz
>
> --------
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>
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