1) DC Regulated Power Supply, AC/DC Power Supply, Step Down Transformer (AC Supply)                                  

2) Function Generator, RF Signal Generators & General Measuring Instruments

3)  Battery Eliminators & Batter Chargers

4)  Resistance Boxes & Post Office Boxes, Carry Forster Bridge, Wheat Stone Bridges

5) Resistance in Parallel & Series, Ohms Law, Stefan's Law

6) Decade Capacitance Box, Decade Inductance Box

7) PN Junction Diode, ZENER Diode, Transistor (PNP /NPN) Characteristic Apparatus