Quantity   Component name
1 × yellow LED
1 × perfboard
1 × 9V battery clip
1 × toggle switch
1 × 555 timer
1 × 4017 decade counter
1 × 0.1 uF capacitor
4 × 1.6 kOhm resistor
1 × 1 MOhm trimpot
1 × 2.6 Mohm resistor
1 × 8 pin IC socket
1 × 16 pin IC socket
1 × assorted hookup wire