Salut
J'aimerai arriver a changez m horloge de jouet et autres bend j ' ai trouver un ptit truc dans
Handmade Electronic Music: The Art of Hardware Hacking
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En tout cas si quelqu'un sais précisez et traduire correctement pour les non anglophone ... ça pourrais en aider plus d 'un
Clocks for Toys
Sometimes you can use the output of a high frequency oscillator as a substitute for the
clock circuit in a toy. Breadboard an oscillator (using the 74C14 or 4093 design) that
runs too high to hear—use a capacitor between 100 pf and .01 uf and a pot to adjust the
speed. Connect the ground of the toy (– battery point) to the ground on your oscillator
(– battery bus). Disconnect the timing resistor of the toy (as we did in chapter 13) and
solder a jumper to each of the pads at either end of the resistor. Plug the free end of one
of the wires into the output point of the oscillator. Does the toy run? You may need to
disconnect and reconnect the batteries, and adjust the oscillator speed with the pot. If
it doesn’t work, try the lead from the other resistor pad; you might have to connect the
unused resistor pad to ground. If neither confi guration works try another toy or give up.
But if it does work you can proceed with applying all of our oscillator variations (gated,
divided, etc.) to modifying the toy’s performance.
