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Objective : To study the 4 Bit Adder and Subtractor using IC 7483
Features : Instrument comprises of DC Regulated Power Supply 5V/150mA, 4 Logic inputs selectable using SPDT switches, 4 output LED indicators, circuit diagram printed & connections brought out at sockets on the front panel.

Objective : To Study and verify the truth tabels of two Bit, four Bit up, down and Modulo Asynchronous (Ripple) counters using IC 7476, Ring & Johnson Counter using IC 7476, four Bit Up Down and Programmable Synchronous counter using IC 74193, Decade Up-Down Counter using IC 74190.
Features : Instrument comprises of DC Regulated Power Supply 5VDC/150mA, 1Hz monoshot clock pulse, Two output indicators, symbolic diagram for 4 ‘JK ‘ flip-flops Printed & connections for inputs & outputs brought out at sockets on the front panel

Objective : To verify the truth table of Digital Half Adder, Half Subtractor, Full Adder & Full Subtractor using OR, AND, EX-OR & NOT gates.
Features : Instrument comprises of DC Regulated Power Supply 5V/150mA for logic inputs, 4 SPDT switches provided for selecting logic ‘1’ & logic ‘0’, 2 Red LED output indicators, circuit diagram printed for 1 two input ‘OR’ gate, 2 two input ‘AND’ gates, 2 ’NOT’ gates & 2 EX-OR gates & their respective IC’s placed inside the cabinet & connections brought out at sockets.

Features : Instruments Comprises of fixed Output DC Regulated power supply of 5V. Logic inputs selectable using SPDT switches & logic output indicators & IC 74181. Circuit diagram is printed on the front panel.