1.1 Understanding Diodes + 1.2 Identification and Testing of Diodes + 1.3 Connection and Testing of Diode Application Circuits+ 1.4 Connection and Testing of Single-Phase Bridge Rectifier Capacitor Filter + 1.5 Design and Production of DC Stabilized Power Supplies+ 2.1 Understanding Transistors + 2.2 Identification and Testing of Transistors + 2.3 Principle Analysis of Amplifier Circuits + 2.4 Design of Static Operating Points for Amplifier Circuits+ 2.5 Dynamic Operation Analysis and Testing of Amplifier Circuits+ 2.6 Assembly, Debugging, and Application of Hearing Aids+ 3.1 Identification of Integrated Operational Amplifiers+ 3.2 Measurement of Integrated Operational Amplifiers+ 3.3 Testing of Inverting and Non-Inverting Circuits+ 3.4 Design and Production of Electronic Candles +