Course Capsule: Junction Diodes: Energy bands in crystals, Intrinsic and Extrinsic semiconductors, Hall-effect, p-n Junction, Rectifier and voltage multiplier circuits, Diode clippers and clamps,Other type of diodes. Transistor Amplifier Circuits: Junction transistor and its characteristics, Single stage amplifier, Equivalent circuits and analysis, Feed- back multistage amplifiers, Multi vibrators. Oscillators: Basic sinusoidal oscillators and non sinusoidal oscillators. Operational Amplifiers: Properties and uses of operational amplifiers.