User manual

19
9 Keep on the glow
The capacitor in this study package acts as a small energy
storage. It is an electrolytic capacitor (short, e-cap). The im-
portant thing about this e-cap, you need to pay attention to
polarity, just like with an LED. The negative pole is indicated
by a thick white line and connects to minus.
Attention! Do not install an electrolytic capacitor the wrong
way round. If an e-cap’s plus and minus are reversed, its
insulation won’t work. Current that flows will eventually ruin
the component by time.
The LED turns on with a push on the button. The LED will not
turn dark immediately when you release the button but stays
lit for a minute or two and slowly dies away. This makes a