Cricklewood Electronics

LED Jack-o'-lantern Solder Practice Kit and Halloween Decoration

Practice your soldering in style with this simple flashing LED circuit. It uses a CD4017 decade counter IC to flash the LEDs sequentially. The rate of flashing and brightness can be adjusted via two potentiometers, which also act as a stand for the jack-o'-lantern. It can be powered by a 9V PP3 battery or a 6 x AA battery holder (not supplied).

Included in the kit:
1kΩ carbon film resistor x 1
680Ω carbon film resistor x 6
4.7µF 63V electrolytic capacitor x 1
10nF ceramic capacitor x 1
10µF 25V electrolytic capacitor
NE555N timer IC x 1
CD4017 decade counter IC x 1
5mm green LED x 1
5mm orange LED x 14
100k Linear 9mm vertical potentiometer x 1
50k Linear 9mm vertical potentiometer x 1
PP3 hard plastic battery snap x 1
8-pin IC socket x 1
16-pin IC socket
Jack-'o-lantern PCB x 1
Instructions