MALZEME LİSTESİ R1,R2,R6;    2.2 K R3,R4;           1M R5;                  1.5  K R7;                  2.7  K T1,T2;             BC(237/238/547)  (NPN) C1,C2;            220nF(NANOFARAT) C3;                   100uF(mikrofarat) D1;                   4.7V  ZENER DİYOT D2;                    1N4148 POT;                 10 K MİC;                    KAPASİTİF MİKROFON U1;                      4011 (7...12 V)