tams elektronik GBM-1 Manual page 11

tams elektronik
Light emitting diodes (LEDs)
When operated in the forward direction the LEDs light. They are available in
several different versions (differing in colour, size, form, luminosity, maximum
current, voltage limits).
Light emitting diodes should always be connected via a series resistor which limits
the current and prevents failure.
Transistors
Transistors are current amplifiers which convert low signals into stronger ones. There are
several types in different package forms available. The type designation is printed on the
component.
Transistors for a high power rating (e.g. BD types) have a flat package (TO-
package), which is in use in different versions and sizes.
The three pins of bipolar transistors (e.g. BD types) are called basis, emitter and
collector (abbreviated with the letters B, E, C in the circuit diagram).
Integrated circuits (ICs)
Depending on the type, ICs fulfil various tasks. The most common housing form is
the so-called "DIL"-housing, from which 4, 6, 8, 14, 16, 18 or more "legs" (pins)
are arranged along the long sides.
ICs are sensitive to damage during soldering (heat, electrostatic charging). For
that reason in the place of the ICs IC sockets are soldered in, in which the ICs are
inserted later.
Terminal strips
Terminal strips are solder-in screw-type terminals. They provide a solder-free and safe
connection of the cables to the circuit, which can still be separated any time.
GBM-1
Assembling the kit | 11