Assembling a purely optical transmission line

VP4.1.7.2
Assembling a purely optical transmission line
Assembling a purely optical transmission line

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