**TI82** TxtView file generated by CalcText - KouriÁ ²NE555²°ÿNE555NE555 On choisit C=1nF (1.10^-9 F) 5000= 1.49/ ((R+2R2)22.10^-9) R+2R2=13544 ohm On choisit R=10k Donc 2R2=13545-10000 =3545 R2=3545/2=1772.5ohm ÿû)