Alt-BEAM Archive
Message #13023
To: beam@sgiblab.sgi.com, cwklink@excite.com, madhackers@egroups.com, Ginnybop2@cs.com, phonenumbers@onelist.com, lordurza@yahoo.com, Rmlearn@cs.com, PrettySniperGirl@cs.com, Cyberplasm@aol.com, WILDCATS84@aol.com, pubvs.cs.com@listbot.com, paintballohio@listbot.com
From: SkavenArmy@cs.com
Date: Tue, 4 Apr 2000 15:32:33 EDT
Subject: my new page is finally up
www.geocities.com/jaydzink
enjoy
13024 Tue, 4 Apr 2000 21:38:34 +0200 A FRED popper has come to life "Beam Mailing List" "Thomas Pilgaard" I've finished a FRED popper a couple of days ago, and thought I'd mail some
observations I've done on it.
I've build it 'round these components
* 3733 Sunceram
* 4700uF cap
* Namiki 1701's
* BC337 NPN / BC427 PNP's
As for phototropism ... well ... I'm not quite sure yet. I've only had a
short chance to test it in bright sunlight. Here it displayed various
behaviours: sometimes it would head directly towards the sun, but more often
it seems it would crawl along the light almost with a difference of a 90
degree angle than my Chiu popper would (that always heads towards the
light). I realise that this may be due to my choice of FLED's - I only had
four and chose the best match according to Ben's method.
Furthermore it seems that in lower light conditions (ie. under a 25watt
desklamp) it is less phototropic, than with a 60watt spot.
It is very intersting to watch as it is pretty unpredictable. I like it -
especially the leds flashing before each pop. I'll try to get some pics
online in near future.
And Ben - thanks for the time you've invested in the FRED popper and the
information you've provided - it's very valuable.
- Thomas
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