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http://www.olimex.com/kits/index.html
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http://positron.jfet.org/nixie-1
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http://www.oldtemecula.com/theremin/ultimate2b/index.htm
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http://www.browncrow.com/theremin
USB stack for Atmel AVR
http://www.obdev.at/products/avrusb/index.html
plein de matos electronique
http://stores.ebay.fr/perplexxer-shop
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http://users.pandora.be/educypedia/electronics/analog.htm
Lot of free Electronic circuit
http://www.redcircuits.com/Hobby.htm
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http://chronotronix.com/sites/nixie/nixie-tubes.htm