book

Practical Audio Electronics

by Kevin Robinson

February 2020

Intermediate to advanced

440 pages

12h 34m

English

Focal Press

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Key Concepts in ElectricityElectric ChargeStatic and Current ElectricityCurrent and CircuitsDirect and Alternating CurrentVoltageResistancePowerElectricity and MagnetismConductors and InsulatorsReferences
Pure SiliconDoped SiliconThe P-N JunctionDiodes and TransistorsGermanium SemiconductorsReferences
Mains Power Generation and DistributionBuilding WiringThe Fuse BoxWiring SafetyAppliance Protection ClassesThree Phase PowerReferences
Time Domain and Frequency Domain RepresentationsPhase and PolarityRectificationClippingCrossover DistortionThe Sine WaveComplex SignalsDecibelsReferences
Passive ComponentsSemiconductor DevicesVacuum TubesTransducersMiscellaneous ComponentsReferences
Block DiagramsSchematic DiagramsBreadboard LayoutsStripboard LayoutsA More Elaborate ExampleReferences
Bench Power Supply UnitsFunction GeneratorsMultimetersOscilloscopesAudio Analysers and Advanced Test GearReferences
Primary QuantitiesOhm’s LawWatt’s LawKirchhoff’s Current Law (KCL)Kirchhoff’s Voltage Law (KVL)Applying the Four LawsReferences
The Project PipelineInitial Idea, Concept Development, and Background ResearchProcurementPrototyping, Testing, Development, and Final Layout DesignCircuit BuildingPackagingReferences
Project I – Low Power Audio AmplifierProject II – Stepped-Tone GeneratorProject III – Modulation EffectReferences
E-Series Preferred ValuesToleranceResistor Colour CodesPower RatingMaterial and Temperature CoefficientElectrical BehaviourSeries Rule and Parallel RuleVoltage Divider Rule (VDR)Variable ResistorsPhotoresistorsThermistorsInstructive ExamplesReferences
CapacitorsInductorsCharacteristics of Capacitors and InductorsDevice ImpedanceSeries and Parallel RulesRLC CircuitsReferences
How Transformers WorkTransformation EquationsSchematic SymbolsTransformer Types and ApplicationsReferences
Switch StylesPoles and ThrowsMomentary vs. LatchingBreak-Before-Make vs. Make-Before-BreakPositions vs. Throws – On/Off Switch Position DesignatorsCircuit SymbolsElectro-Mechanical and Electronic SwitchesInstructive ExamplesReferences
Electrical CharacteristicsDiode TypesSchematic SymbolsCircuitsReferences
Transistor TypesGeneral Use and OperationBipolar Junction Transistors (BJTs)Junction Field Effect Transistors (JFETs)Metal Oxide Semiconductor Field Effect Transistors (MOSFETs)References
Selected ICsOpampsIC Power AmpsLM317 Voltage RegulatorNE555 Precision Timer4000 Series ICsAnalog OptocouplersReferences
Principles of OperationDiode TubesTriode TubesLow Voltage Tube CircuitsReferences
MicrophonesLoudspeaker DriversCoil PickupsPiezo ElementsReverb PansReferences
Primary QuantitiesDecibel EquationsFundamental LawsResistor EquationsRLC EquationsTransformer EquationsOpamp Equations
Circuit IndexBreadboard LayoutsStripboard Layouts

Content preview from Practical Audio Electronics

12 | Resistors

The resistor is the simplest and also the most fundamental of all electronic components. It is designed to have a constant resistance across all frequencies and under all normal circuit conditions (within reason). Resistors limit the amount of current flowing through them and they drop voltage across their terminals. Voltage drop is the term used to talk about the difference in voltage between two points in a circuit, also commonly referred to as the potential difference between the two points.

Resistors come in many shapes and sizes, but the most common format used for handmade electronics is the little dumbbell with coloured stripes on its body and leads sticking out from either ...