User:Joak/klangboard
a PS/2 keytar
partlist: * 1 x old ps/2 keyboard * 9 volt battery * 1 x speaker 10 - 20 Watt * 6 x potentiometer (linear 10k mono) * 1 x ATMEL ATMEGA328P-PU * 1 x 7805(TO-220) * 2 x 10 uF capacitor * 2 x 22 pf capacitor * 1 x 16MHz crystel * 1 x switch * 1 x button * 1 x 270 OHM resistor * 3 x 100 nF capacitor(104) * 2 x breadboard connectors * 1 x TDA2003 amplifer * 1 x 10 uF capacitor * 1 x 100 uF capacitor * 1 x 470 uF capacitor * 1 x 1000 uF capacitor * 1 x 220 OHM resistor * 1 x 2.2 OHM resistor * 1 x 1 OHM resistor * 1 x 33 nF capacitor * 1 x 47 OHM resistor * 6 x pinconnecotr 90degrees