What you need...

For the experiments, you need only a handful of electronic components. These are all original parts and can be bought cheaply in electronics stores or on the Internet.

All you need... (Enlarge)

From your electronics-lab you need...

           

1	Breadboard
1	9V Block Battery
1	Batteryclip 9V
1	Multimeter
1	Pair of Test Leads
1	Pair of Clamp-Style Probe Tips
1	Set of Jumpers
1	Set of Solder Tips
1	Socket Light Bulb E10

These electronic components you need...

1	Diode 1N4001
1	Diode 1N914
1	LED red 5mm
1	Light Bulb 9V, E10
2	Transistors BC 547 B (npn)
1	Resistor 470 Ω (yellow, purple, brown), 1/4 Watt
1	Resistor 1 kΩ (brown, black, red), 1/4 Watt