6
Construction
C6 : 470µF
7. Electrolytic capacitor.
Watch the polarity !
C...
RV1 : 470K
RV1
8. Trim Potentiometer
J1 : 2p + 2p
J2 : 2p + 2p
9. Screw connectors
BUZ1
Be sure to put the longest
connection into the bore
marked
‘+’
10. Buzzer
IC1 : CD4060 or eq.
IC2 : CD4020 or eq.
IC3 : CD4068 or eq.
IC4 : CD4093 or eq.
IC5 : CD4049 or eq.
Pay attention to the position
of the notch!
11. IC’s mounting
PIN 1
1