Two Input and Gate

A common anode seven segment module is fitted on a board with 8 bit dip switch to control the each segment of seven segment LED display. The inputs A-D of a display driver are connected to the binary coded decimal (BCD) outputs from a decade counter. A network of logic gates inside the display driver makes its outputs a-g become high or low as appropriate to light the required segments a-g of a seven segment display. A resistor is required in series with each segment to protect the LEDs

This Trainer Consist of : 1. Regulated power supply of ± 12 V / 250 mA. 2. Variable 0 to ±5 V / 250 mA. 3. Sine wave oscillation of 1 KHz. 4. Digital Voltmeter of 0-20 V DC, LCD display, 3 ½ Digit. 5. Functional diagram of IC 741 is printed with 2 mm sockets. 6. One extra 8 pin IC Base with 2 mm sockets. 7. Potentiometer of 10K Ohms. 8. Required Resistance and Capacitances mounted on board. 9. Interconnection Leads and Manual to perform 15 experiments on IC741 e.g. inverting, non-inverting, summing, difference, multiplier, differentiator, integrator etc.

Each module is housed in a plastic box 90 x 90 x 30 mm and is provided with a circuit diagram on the panel. It has necessary input and output sockets. The socket stacking system allows addition of as many modules as desired, designed to work on 6V D. C.

Mounted on transparent covered base for easy view. A diagram and two color coded sockets are provided for connection with any circuit.