Assembling a purely optical transmission line

VP4.1.7.2

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Description

The experiment P4.1.7.2 demonstrates optical transmission of the electrical signals of a function generator to a loudspeaker. The signals modulate the light intensity of an LED by varying the on-state current; the light is transmitted to the base of a phototransistor via a flexible light waveguide. The phototransistor is connected in series to the speaker, so that the signals are transmitted to the loudspeaker.

Components of equipment sets

3	57681 4	Plug-in board safety socket, 20/10
1	57857 8	Light emitting diode green, STE 2/19
1	57858 4	Light emitting diode, red, lateral, STE 2/19
1	57861 8	Phototransistor, lateral, STE 2/19
1	57868 4	Transistor BD 138, PNP, e.b., STE 4/50
1	57885 4	Operational amplifier, LM 741, STE 4/50
1	57728 4	Resistor 47 Ohm, STE 2/19
1	57740 4	Resistor 470 Ohm, STE 2/19
1	57744 4	Resistor 1 kOhm, STE 2/19
1	57748 4	Resistor, 2.2 kΩ, STE 2/19
3	57756 4	Resistor 10 kOhm, STE 2/19
1	57764 8	Resistor, 47 kΩ, STE 2/19
2	57816 4	Capacitor, 4.7 µF, bipol., STE 2/19
1	57839 4	Capacitor (electrolytic) 100 µF, STE 2/19
1	57840 4	Capacitor (electrolytic) 470 µF, STE 2/19
1	50148 4	Bridging plugs STE 2/19, set of 10
1	521536 4	DC Power Supply 2 x 0...16 V/2 x 0...5 A
1	522621 4	Function generator S 12
1	57929 4	Earphone
1	50098 8	Safety adapter sockets, black, set of 6
4	500614 4	Safety experiment cable, 25 cm, black
2	500621 4	Safety experiment cable, 50 cm, red
2	500622 4	Safety experiment cable, 50 cm, blue
1	500624 4	Safety experiment cable, 50 cm, black

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Assembling a purely optical transmission line

Description

Components of equipment sets

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