Signal Generator

This instrument is designed to study input and output characteristics of common emitter and common base PNP & NPN Transistors. Instrument comprises of two DC regulated power supplies 0 – 10 V DC (150 mA) and 0 – 1 V DC (150 mA). Four round meters for voltage and current measurement. Connections of supplies and transistors are brought out at 4mm Sockets. 4mm stackable lead and instruction manual is also provided with this instrument.

The ADC unit converts an analog signal to digital signal. When a variable voltage is applied to the input terminals it is converted into a digital output. Therefore, a 3 volt input will correspond to binary 11, and 7 volt will correspond to binary 111. A low frequency AC input signal can be converted into a changing digital value. Use on its own or combined with the DAC to decode back into a stepped analogue voltage.

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.