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Diode junctions on transistors, test circuit with light-emitting diodes

Diode junctions on transistors, test circuit with light-emitting diodes

LP4.1.4.1

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Description

In this experiment, the students study the behaviour of an NPN and a PNP transistor with different polarities at the base and emitter, or base and collector. The students realise that the respective paths behave like diodes and create an equivalent circuit for the two transistors.

Components of equipment sets

1	57681 4	Plug-in board safety socket, 20/10
1	50148 4	Bridging plugs STE 2/19, set of 10
1	500621 4	Safety experiment cable, 50 cm, red
1	500622 4	Safety experiment cable, 50 cm, blue
2	57905 8	Lamp holder E10, lateral, STE 2/19
1	57867 4	Transistor BD 137, NPN, e.b., STE 4/50
1	57868 4	Transistor BD 138, PNP, e.b., STE 4/50
1	521488	AC/DC power supply 0...12 V/3 A
1	50508 8	Bulbs 12 V/0,25 A/3 W, E10, set of 10

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Diode junctions on transistors, test circuit with light-emitting diodes

Description

Components of equipment sets

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