Friday 17 June 2011

Coin tosser

Parts
R1                     47k
R2                     10k
R3                     330ohm
R4                     330ohm
C1                     0.01uF
IC1                   555
IC2                   7473
leds                   2(red and green)
S1                     switch

Note
9v will also run this circuit.

source
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