N-P-N Transistor Unit

The Voltage Regulator module regulates an unregulated DC power supply. The unregulated DC supply is applied to input sockets 4mm and regulated output is available at output sockets 4mm. The output can be adjusted by the knob provided.

Bridge Rectifier is made of four diodes connected in a bridge circuit. It is housed in a plastic moulded box. This bridge rectifier converts alternating current (AC) into direct current (DC). It provides the same output polarity for either input polarity. All the electronic devices require direct current, so bridge rectifiers are used inside the power supplies of almost all electronic equipment. For the easy understanding of the internal circuitry, the circuit diagram is printed on the box.

Bridge rectifier is designed with four LED’s internally arranged in bridge pattern fitted inside a plastic mouded case. Two LED’s are red and two LED’s are green. This device is used to demonstrate the functioning of a bridge rectifier, i.e., to convert alternating current (AC) into direct current (DC). Two yellow sockets are used for AC input. Two sockets, one red and one black, are used for DC output. For the easy understanding of the internal circuitry, the circuit diagram is printed on the box.