Nucon Scientific International, Ambala, (RESISTANCE BOXES, POST OFFICE BOXES, MEGOHM BOXESC, MEGOHM METER, RESISTANCE COILS, CONDENSERS, CAPACITANCE BOXES & DECADE CONDENSERS, INDUCTANCES, BRIDGES, POTENTIOMETERS, SWITCHES & KEYS, KELVIN DOUBLE BRIDGE, OVERHEAD PROJECTORS, MODULATED CIRCUITS, RHEOSTAT, MOVING COIL PANEL METERS, EXPERIMENTAL BOARDS, DIGITAL IC TRAINERS, DIGITAL MULTIMETERS, DIGITAL PANEL METERS, HIGH VOLTAGE TESTER. VALVE EXPERIMENTS, CHARACTERISTICS APPARATUS, GENERAL INSTRUMENTS, CHARACTERISTIC OF RECTIFIERS, FILTER CIRCUIT & REGULATORS, EXPERIMENTS TO CALCULATE e/m, VERIFICATION OF NETWORK THEOREMS, VERIFICATION OF INDIVIDUAL THEOREMS, DEMONSTRATION MODELS, AMPLIFIERS, EXPERIMENTS OF OPERATIONAL AMPLIFIERS & MULTIVIBRATROS, OSCILLATORS, TRAINING KITS FOR COMMUNICATION LAB, ACTIVE AND PASSIVE FILTER CIRCUITS, TRAINING KITS FOR POWER ELECTRONIC LAB )