tams
elektronik
FCS modules
English
6. Special features of the additional components
Depending on the specification of the modules, different additional
external components have to be connected. These have the following
special features:
Resistors
Resistors reduce current. Their mounting orientation is of
no importance. The value of resistors for smaller power
ratings is indicated through colour rings. Every colour
stands for another figure. Carbon film resistors have 4
colour rings. The 4th ring (given in brackets here) indicates
the tolerance of the resistor (gold = 5 %).
Value
Colour rings
10
W
brown - black - black (gold)
10 k
W
brown - black - orange (gold)
Light sensitive resistors
Light sensitive resistors change their value depending on the ambient
lighting. As a rule types are used which value decrease with increasing
light intensity. Their mounting orientation is of no importance.
Trimm-potentiometers
Trimm-potentiometers (abrv. "trimm-pots") are resistors
which allow the value of resistance to be varied and that
way to be adapted to the particular demands. In the
middle they have a small slot into which a small
screwdriver can be put in order to vary the value of
resistance. The maximum value is printed on the housing.
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