Elec-Circuit

R1=470K 0,5W R13-21=820K 0.5W C8-9=0.1uF 630V R2-5= 2K2 0.5W R14-22=5K6 0.5W C10-14=0.47uF 630V R3=150K 0.5W R15-20= 680K 0.5W C11-13=25uF ...