User manual

Figure 9: An LED must be installed in the correct polarity.
Figure 10: LED circuit symbol
2.6 Transistor
The transistor amplifies small currents. Its connections are called emitter (E), basis (B)
and collector (C). The cylindrical casing is flattened on one side. The type designation is
printed on here. Looking at the transistor so that the connections point down and the
label can be read, the emitter is on the left side. The basis is at the centre.
Figure 11: Transistor with view of the flattened side.
Connections from the left to the right: Emitter (E), basis (B) and collector (C).
9