سوییچ

مدار سوییچ صوتی لیست قطعات R1 = 5k6 R2 = 47k R3 = 3M3 R4 = 33K R5, R7 = 330 OHMS R6 = 2K2 C1 = 0.33uF/400V C2 = 4.7uF/25V T1, T2 = BC547 T3 = BC557 D1 = 1N4007 LED = RED LEDs 3 V, 20 mA