Bipolar Junction Transistor (Introduction to BJT, operation of pnp and npn transistor, current amplifiation factor, regions of operation, input and output characteristics in CB and CE mode, transistor as a switch, NOT gate and amplifier): Link
Problems and solutions on circuit parameters of BJT circuits: Link
Transistor biasing and stabilizing circuits (Limits of operation, DC biasing, Q-point, stability factor, stability analysis of fixed bias circuit, emitter bias circuit and voltage divider circuit): Link
Problems and solutions on DC Biasing of BJT Circuits: Link
Amplifier (Introduction, hybrid model of an amplifier, hybrid model of CB, CE, CC amplifier): Link
RC Coupled BJT Amplifier (Frequency response of a RC coupled amplifier, bandwidth, gain-bandwidth product): Link
Digital Flip-Flops (1bit memory cell, SR latch, clock-pulse, SR flip-flop, preset and clear, JK flip-flop, race around condition, Master Slave flip-flop): Link
Digital Counter (4Bit ripple up and down counter, decade ripple counter, ring and twisted ring counter, synchronous counter): Link