[sdiy] Electronics class for kids

[BrightBoy]

Some basic 555 timer circuits can make a lot of noise too!

Jeff

-----Original Message-----
>From: Monse Lozano <panfilero at hotmail.com>
>Sent: May 21, 2013 1:53 PM
>To: "synth-diy at dropmix.xs4all.nl" <synth-diy at dropmix.xs4all.nl>
>Subject: [sdiy] Electronics class for kids
>
>This is my first post to the email list, hopefully it goes through
>
>
>I am about to start an after school programs to teach 6th-8th graders basic electronics and I would like to incorporate some audio synth type circuits into the class.  I was wondering if anyone could give me any suggestions for cool noise making projects?  I'm not very familiar with synthesizer design, I've been reading up on it a bit and started putting together a simple sawtooth generator, the one with an integrator and a comparator, where the output ramps up until the comparator shorts the integrator's cap and discharges it.  I'm looking for simple circuits like this, I'm not worried about correcting non-linearities or temperature compensation, just noise makers to get the kids interested.  
>
>much thanks! 		 	   		  
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