Experiment 2 : Diode tester

The second experiment can be used to test if the 2 diodes and LED's included with the kit ( red & green ) are OK.
After switching to ON, the LED will light up.
When you reverse the diode ( arrow pointing UP ), the LED stays dark.

This happens because a diode ( in our kit we use a Germanium diode ), can conduct electricity in only one way.
The same counts for the LED. When reversing ( arrow pointing up ), the LED stays dark, even though we use the diode in both directions.

Later on, we will explain everything in more detail.