• Fast and easy experimenting
• Get to know the behaviour of several types of semiconductors
• Detailed experiment guide with extensive explanations and step-by-step instructions
• Measure voltage and current simultaneously on four channels
• Simplified implementation: all pre-settings already prepared
• Further experiments in electricity and electronics can be performed with the equipment

Potentiometer 1 kOhm, 0.4W, G2

Resistor 470 Ohm, 1W, G1

Resistor 1 kOhm, 1W, G1

Resistor 22 kOHM, 1W, G1

Resistor 100 Ohm, 1W, G1

Semiconductor diode Ge, AA118, case G1

Semiconductor diode Si, 1 N 4007, case G1

Semiconductor diode Si, 1 N 4148, case G1

Transistor BC337, base left, G3

Low power zener diode ZF 4,7, G1

Light emitting diode, red, case G1

Short-circuit plug,black

Plug-in board, for 4 mm plugs

Commutator switch

Connecting cord, 32 A, 500 mm, red

Connecting cord, 32 A, 500 mm, yellow

Connecting cord, 32 A, 500 mm, blue

Connecting cord, 32 A, 500 mm, black

Adapter, BNC-plug/socket 4 mm

Cobra4 Xpert-Link

1. To investigate the dependence of the current strength flowing through a semi-conducting diode.
2. To determine the variations of the collector current with the collector voltage for varios values of the base current intensity.

• Semiconductor
• P-n junction
• Energy-band diagram
• Acceptors
• Donors
• Valence band
• Conduction band
• Transistor
• Operating point