This is an important book on engineering -Part I includes chapter on Electrons and Vacuum Tubes, Diode Rectifiers and D.C. power Supplies, Gas triodes, Valve Voltage... -part II includes chapters on Semi-Conducter Physics, P.N junction Diode, Transistor Construction and Characteristics, Tran-Follower... -part III includes chapters on Integrated Circuit Comparator, Sample and Hold Circuits, P…