http://www.handmadeelectronicinstruments.com/device0042
Built inside a jar, this synthesizer has a square-wave oscillator as well as sweeping LFO modulation effect. The pitch and speed are controlled by outside light sources hitting the two light sensors inside so there is a lot of room for experimenting.
All of the components are built in a three dimensional floating circuit that comes down from the lid of the jar.
A yellow LED pulsates in time. There is a single switch on top for power which is supplied by an included 9v battery, and a 1/4" output jack that makes it easy to connect to amps, effects, or recording equipment.
This was hand-built in a series of six.
http://www.etsy.com/listing/85757604/jar-synthesizer
this is some cool stuff, alot of theses on the tue, but why cant you just atempt to play something worth listening to?
props from sweden
kaszelbeck 1 month ago
@kaszelbeck
Thanks.
It is just a demo to show how it works and sounds, completely raw.
mike19822058 1 month ago
Would it be possible for you to post your schematic, or would that be like giving away your trade secrets?
tamaleaga10 3 months ago
@tamaleaga10
I don't have a schematic put together but it is 555 timer with a 40106 IC. If you have more questions feel free to ask.
mike19822058 3 months ago
Excellent job !
GruithuisenCityMan 3 months ago
@GruithuisenCityMan
Well, thank you.
mike19822058 3 months ago