Volume 1
Foundations
The ground floor of electronics: what electricity physically is, the quantities that describe it, and the core laws every diagnosis and repair in this handbook builds on.
9 chapters · 54 sections · 1367 minutes of reading.
0/54Charge, circuits, voltage, and current — built from atoms up into the diagnostic mindset behind every repair: where, exactly, is this circuit open?
- 1.1What Is Electricity?20 min
- 1.2Voltage — The Pressure of Electrons25 min
- 1.3Current — The Flow of Electrons20 min
- 1.4Resistance — Opposition to Flow20 min
- 1.5Ohm's Law — The Foundation of Circuit Analysis22 min
- 1.6Power and Energy in DC Circuits22 min
- 1.7Practical Measurement: Reading Voltage and Current24 min
The rules that govern how components share a circuit — series and parallel, Kirchhoff's laws, and the analysis tools that turn a schematic into predicted voltages and currents at every point.
The energy-storing components — capacitors and inductors — that make circuits depend on time: what they are, how they behave in DC and AC, resonance, and the failure modes that make them the most common casualties on a repair bench.
From how components behave to how to identify them on a bench — reading the values, markings, types, and ratings of the resistors, capacitors, inductors, diodes, transistors, and ICs you'll actually pick up and replace.
- 4.1Resistors — Types, Values, and Markings22 min
- 4.2Capacitors — Types, Ratings, and Identification24 min
- 4.3Inductors and Transformers26 min
- 4.4Diodes — Function and Types24 min
- 4.5Transistors — BJT and MOSFET Fundamentals28 min
- 4.6Voltage Regulators — Linear and Switching26 min
- 4.7Op-Amps and Amplifier ICs26 min
- 4.8PMICs — Power Management ICs24 min
From identifying components to how analog circuits behave — amplification and gain, the filters that shape signals by frequency, feedback, signal conditioning, and the failure modes that make analog stages misbehave.
The pivot from continuous analog to the two-state digital world — logic gates and Boolean algebra, flip-flops and sequential logic, clocks and timing, the buses that carry data between chips, and how digital circuits fail.
How electronics get clean, correct power — the AC-to-DC supply chain, linear and switching regulators, battery systems and lithium safety, power-rail sequencing, and how power systems fail.
The technician's literacy skills — reading the documentation that describes circuits: schematic symbols and conventions, following a complete schematic, reading datasheets, interpreting absolute maximum ratings, and using application notes and reference circuits.
The physical-layer discipline beneath clean digital logic — what signal integrity is, grounding strategies, crosstalk and noise, bypass and decoupling capacitors, and practical signal integrity in real repairs.