Online Electronics Technician Course

Lesson 1 • Test Equipment Basics

Introduces the multimeter, oscilloscope, and power supply as primary bench tools. Proper use prevents equipment damage and measurement errors.

Lesson 2 • Voltage, Current, and Resistance

Defines the three core electrical quantities and their units. Connects measurement concepts to Ohm's Law application.

Lesson 3 • Atomic Structure and Electron Flow

Explains how atomic structure drives electron movement and conductivity. Establishes the physical basis for all subsequent circuit analysis.

Lesson 1 • Parallel Circuit Characteristics

Analyzes branch currents, equivalent resistance, and voltage in parallel circuits. Builds on series concepts to handle multi-path networks.

Lesson 2 • Series Circuit Characteristics

Examines current, voltage drops, and total resistance in series circuits. Provides the analytical framework for more complex topologies.

Lesson 3 • DC Circuit Troubleshooting

Applies fault-isolation logic to opens, shorts, and high-resistance defects. Reinforces measurement skills from Chapter 1 in a diagnostic context.

Lesson 4 • Network Theorems

Introduces Thevenin, Norton, and superposition methods for advanced circuit simplification. Enables efficient analysis of multi-source networks.

Lesson 1 • Resonance and Filters

Analyzes series and parallel resonance, bandwidth, and Q factor. Introduces low-pass, high-pass, and band-pass filter responses.

Lesson 2 • Sinusoidal Waveform Parameters

Defines frequency, period, amplitude, and phase for AC signals. Establishes vocabulary used throughout all AC and RF topics.

Lesson 3 • Capacitors in AC Circuits

Explains capacitive reactance, charging behavior, and phase relationships. Links capacitor theory to filter and coupling applications.

Lesson 4 • Impedance and Phasor Analysis

Combines resistance, capacitive reactance, and inductive reactance into impedance using phasor diagrams. Enables full AC circuit solutions.

Lesson 1 • Bipolar Junction Transistors

Analyzes BJT operation in cutoff, active, and saturation regions. Establishes the basis for amplifier and switching circuit design.

Lesson 2 • Passive Component Identification

Covers resistor color codes, capacitor markings, and inductor labeling. Accurate identification prevents substitution errors during assembly and repair.

Lesson 3 • Integrated Circuit Packages

Introduces IC package types, pin identification, and handling procedures. Bridges discrete component knowledge to board-level assembly and repair.

Lesson 4 • Field-Effect Transistors

Covers JFET and MOSFET operation, pinch-off, and threshold voltage. Prepares students for digital logic and power electronics applications.

Lesson 1 • Transformers and Rectifier Circuits

Covers transformer turns ratio, half-wave, and full-wave rectification. Establishes the AC-to-DC conversion foundation for all power supply designs.

Lesson 2 • Voltage Regulation Techniques

Compares Zener, linear IC, and feedback regulation methods. Enables selection of the appropriate regulator for load and efficiency requirements.

Lesson 3 • Switching Power Supply Fundamentals

Introduces buck, boost, and flyback converter topologies and PWM control. Prepares students to service modern high-efficiency power supplies.

Lesson 4 • Filtering and Ripple Reduction

Analyzes capacitor and LC filter performance in reducing output ripple. Connects filter design to acceptable ripple specifications.

Lesson 1 • Small-Signal Amplifier Biasing

Covers voltage-divider bias, Q-point stability, and DC load line analysis. Stable biasing is prerequisite to accurate AC gain calculations.

Lesson 2 • Operational Amplifier Fundamentals

Introduces ideal op-amp parameters, virtual ground, and negative feedback. Establishes the analytical model used in all op-amp circuit designs.

Lesson 3 • Op-Amp Application Circuits

Covers summing amplifiers, integrators, differentiators, and comparators. Connects op-amp theory to practical signal conditioning tasks.

Lesson 4 • BJT Amplifier Configurations

Analyzes common-emitter, common-base, and common-collector gain and impedance. Enables configuration selection based on circuit requirements.

Lesson 1 • PCB Repair and Rework Procedures

Covers trace repair, pad lifting correction, and component replacement on damaged boards. Proper rework restores board function without introducing new defects.

Lesson 2 • PCB Construction and Layout Basics

Explains PCB layer structure, trace routing, and component footprints. Understanding board construction guides correct assembly and repair decisions.

Lesson 3 • Solder Joint Inspection and Standards

Applies industry workmanship standards to classify acceptable and defective joints. Consistent inspection ensures product reliability and reduces field failures.

Lesson 4 • Surface-Mount Technology Assembly

Introduces paste application, component placement, and reflow for SMT parts. Extends soldering skills to the dominant modern PCB assembly method.

Lesson 1 • Flip-Flops and Sequential Logic

Covers SR, D, JK, and T flip-flop operation and timing. Establishes the memory elements needed for counters and registers.

Lesson 2 • Logic Gates and Combinational Circuits

Analyzes AND, OR, NOT, NAND, NOR, and XOR gate behavior. Builds adders, multiplexers, and decoders as practical combinational examples.

Lesson 3 • Number Systems and Boolean Algebra

Converts between binary, octal, hexadecimal, and decimal systems. Applies Boolean laws to simplify logic expressions before circuit implementation.

Lesson 4 • Counters and Shift Registers

Designs synchronous and asynchronous counters and serial/parallel shift registers. Connects sequential logic to data storage and timing applications.