Alt-BEAM Archive
Message #02723
To: "BEAM Mailing List" beam@corp.sgi.com
From: "Nicholas Smith" nik@resourcekt.co.uk
Date: Wed, 28 Apr 1999 10:55:48 +0100
Subject: [alt-beam] Re: FLED Photopopper Question
Yep thats dead right!
Sorry if my diagram was a bit incomplete. Ooops I just knocked it up quick.
Good luck with this circuit, the first time I built it, it took me a good
few hours debugging only to find out I had the transistor legs touching!
Doh!
Nik.
ps
I used a 10k trimpot and two 2.2k resistors in the circuit. (just to cut
down on your "tweaking" time).
>I got the design off a previous post to the maillist,
>as I understood the design, the FLED's are the
>1's coming off the transistors and the
>photodiodes are the 1's pointing to the trimpot.
>Here is the post I read.
>> I was wondering, is that 4 FLED's or what? The schematic doesn't specify
>> Thanks
>> Jesse Meers
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