[CLUG-tech] 'tis the season

David Peall david at esn.org.za
Mon Dec 10 09:08:49 SAST 2007


> -----Original Message-----
> From: clug-tech-bounces at clug.org.za [mailto:clug-tech-
> bounces at clug.org.za] On Behalf Of Mark Ter Morshuizen
> Sent: 09 December 2007 08:45 AM
> To: OSS Technical Questions and Answers
> Subject: Re: [CLUG-tech] 'tis the season
> 
> On Sunday 09 December 2007, Jonathan Hitchcock wrote:
> > So, here's a Christmas project for the amateur engineers among you:
> > design a small circuit and LED system that would be suitable for a
> > Christmas tree
> 
> wall wart or battery power
> 2x 555 timers
> 2x transistors
> some caps & some resistors for the timing
> LED's
> wire
> 

Sigh* 555 timer is so cheating.  

4x transistors
6x resistors
4x caps
LED's 
Wire
Heat shrink tubing

--
David Peall :: IT Manager
e-Schools' Network :: http://www.esn.org.za/
Phone +27 (021) 674-9140



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