Velleman-projects K3502 Assembly instructions User Manual download pdf (Page 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 2 3 4 5 6 7 8 9 10 11 ... 15 16

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Velleman-projects K3502 Assembly instructions User Manual Page 6