User manual

2 Components
2.1 Battery
The battery must be connected to any circuit in the correct polarity. The required battery
clip has a red (plus) and black (minus) connection wire each. Both wires must be sol-
dered on according to the required polarity.
Figure 1: Battery circuit symbol
2.2 Resistors
Resistors are some of the simplest electronic components. They are labelled in a colour
code consisting of three rings and to be read from the edge to the centre. A fourth ring,
offset slightly, indicates the component tolerance. The impedance value is indicated in
Ohm (O).
Figure 2: Impedance colour code
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