Sirène de style américain : un classique d'Elektor !
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Nomenclature des matériaux
Liste des composants
[Illustration 220235-003-94]
[Illustration 220235-004-94]
Résistances (5 %, 0,25 W)
R1,R9 = 2.2 kΩ
R2 = 470 Ω
R3 = 47 kΩ
R4,R8 = 22 kΩ
R5,R6,R7 = 18 kΩ
R10 = 3.3 kΩ
R11 = 1 kΩ
Condensateurs
C1 = 100 µF, 16 V
C2 = 2,2 µF, 16 V
C3 = 10 µF, 16 V
C4 = 47 µF, 16 V
C5 = 22 nF, pas de 5 mm
C6 = 33 nF, pas de 5 mm
C7 = 470 µF, 16 V
Semi-conducteurs
T1,T2,T3,T4 = BC547
T5 = BC327
Divers
BAT1 = support pour pile bouton 2032 (Keystone 3003)
LS1 = haut-parleur 8 Ω, 200 mW (Kingstate KSSG1708)
S1 = commutateur à glissière SP3T (C&K OS103011MA7QP1)
S2 = commutateur tactile, pas de 6 mm

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