Amplifiers: Low frequency basic amplifiers using BJTs and FETs, biasing of single and multistage circuits. Linear analysis and frequency response of single and multistage amplifier circuits, feedback amplifiers. Class A, B, AB large signal amplifiers, thermal considerations. Small signal analysis. Low voltage Amplifier. Oscillators: Low frequency Oscillator, High frequency Oscillator. 555 timer and its application. Op - amplifier and its application.