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The idea comes from Reinhard Gupfinger a Linz based artist I met during the Ars Electronica Festival 2011 in Linz.
The idea comes from Reinhard Gupfinger a Linz based artist I met during the Ars Electronica Festival 2011 in Linz.
This circuit here is a altered version of his original circuit.<br>
This circuit here is a altered version of his original circuit.<br>
A video demonstrating the functionality can be found here: [http://www.youtube.com/watch?v=DyLsBAO6dLQ Youtube video]<br>
A video demonstrating the functionality can be found here: <youtube>http://www.youtube.com/watch?v=DyLsBAO6dLQ</youtube><br>
Since it is hard to recreate a circuit not having a pcb an a schematic, people who want to recreate the Urban cricket will find the schematics, a layout to create a pcb and a parts list here.
Since it is hard to recreate a circuit not having a pcb an a schematic, people who want to recreate the Urban cricket will find the schematics, a layout to create a pcb and a parts list here.
*'''C2: 68 nf'''
*'''C2: 68 nf'''
*'''C3: 560 nf'''
*'''C3: 560 nf'''
The values should be matched among the 3 oscillators to prevent "chopping off" a tone (brrrr brrrr brrrr br or Brrrr Brrr B).
So the values above are only suggestions of what could sound nice. Try to experiment, maybe use a potentiometer to change the tone on the fly.
= Making a PCB =
= Making a PCB =
[[Image:Urban-cricket-laout-copper-bottom.gif|thumb|Bottom view PCB layout for 18pcs. (600dpi) on a 100x160mm one-sided PCB]]
[[Image:Urban-cricket-laout-copper-bottom.gif|thumb|Bottom view PCB layout for 18pcs. (600dpi) on a 100x160mm one-sided PCB]]
[[Image:Urban-cricket-18pcs-pcb.jpg|thumb|Completed 18pcs PCB]]
The Image on the right is a 600dpi layout of the PCBs. It is designated to make 18pcs. out of one Euro-PCB (one sided, 100x160mm)
= Assembly =
= Assembly =
* [http://www.soundtossing.com/ Sound tossing website]
* [http://www.soundtossing.com/ Sound tossing website]
* [https://www.facebook.com/soundtossing Sound tossing Facebook page]
* [https://www.facebook.com/soundtossing Sound tossing Facebook page]
* <youtube dimensions=\"480\">http://www.youtube.com/watch?v=-bwncfuJNp0 Introduction to Urban Cricket (German)</youtube>
* <youtube dimensions=\"480\">http://www.youtube.com/watch?v=-kvQyy8XEb4 Introduction to Urban Cricket (English)</youtube>
* <youtube dimensions=\"480\">http://www.youtube.com/watch?v=DyLsBAO6dLQ Sound sample</youtube>