Basic electricity. Electric circuit -- Voltage, current, resistance -- Ohm’s law -- Circuit types -- Reversing circuits -- Alternating current (AC) -- Watts -- Basic mechanics. Energy -- Simple machines -- Lever -- Wheel -- Pulleys -- Inclined plane -- Screw -- Springs -- Power sources. Direct current (dc) -- Alternating current (AC) -- Three-phase -- Batteries -- Lead/acid batteries -- Dry cells -- Battery packs -- Testing batteries -- Battery charging -- Battery holders -- Battery terminals -- Battery connectors -- Solar cells -- Direct current power supplies -- Selecting power supply components --

UInterruptible power supplies (UPS) -- Electrical controls. Manual switches -- Switch actions -- Push buttons -- Power disconnects -- Selector switches -- Limit switches -- Magnetic switches -- Mercury switches -- Float switches --Contactors -- Relays -- Sector relays -- Latching relays -- Relay sockets -- Motor relays -- Timers -- Resistors -- Variable resistors -- Decade resistance boxes -- Voltage dividers -- Capacitors -- Diodes -- Silicone controlled rectifiers (SCR) -- Triacs -- Transistors -- Magnetic components. Electromotive force -- Transformers -- Center taps -- Isolation transformers -- Autotransformers -- Three-phase transformers -- Ignition coils -- Saturatable core transformers -- Constant voltage transformers -- Effects of frequency on transformer design -- Permanent magnets -- Electromagnets -- Solenoids -- Eddy currents -- Inductors -- Magnetic amplifiers -- Magnetic recording devices -- Rotating components. Permanent magnet DC motors -- Shunt wound DC motors -- Universal motors -- Induction motors -- Capacitor start motors -- Split phase motors -- Split capacitor motors -- Capacitor start / capacitor run motors -- Shaded pole motors -- Induction starting torques -- Three-phase induction motors -- Wound rotor three-phase induction motors -- Motor nameplate -- Synchronous motors -- Stepper motors -- Servo motors -- Solenoid / piston motors -- Speed reduction -- Translating rotary motion to linear motion -- Motor speed control -- Variable frequency drives -- Soft starters -- SCR controllers -- Torque converters -- Generators -- Alternators -- Magnetos -- Dynamometers -- High-voltage generators -- Rotary converters -- Dynamotors -- Single- to three-phase converters -- Nema motor frame dimensions -- Heating. Inductive heating -- Resistive heating -- Arc heating -- Arc gouging -- Arc welding -- Stick rod -- Tungsten inert gas (TIG) -- Metal inert gas (MIG) -- Atomic-hydrogen -- Arc furnaces -- Thermostats -- Temperature controllers -- Microwave heating -- Circuit protection. Fuses -- Circuit breakers -- Arc suppression -- Long throw interrupters -- Vacuum interrupters -- Pneumatic interrupters -- Magnetic arc suppression -- Arc dividers -- Motor heaters -- Glow discharge protection -- Metal oxide varistor (MOV) -- Spark gaps -- Grounds -- Ground connections -- Ground clamps -- Control cabinet grounds -- Grounding conduit and junction boxes -- Static protection -- Grounding hooks -- Faraday cage -- Lightning protection -- Lightning rods -- Lightning arrestor -- Ground fault interrupter -- Connectors. Twisted connections -- Wire nuts -- Crimp connections -- Solder connections -- Binding posts -- Instrument and test connectors -- Banana plugs -- BNC connectors -- Radio frequency (RF) connectors -- Audio connectors -- Data connectors -- PC board connectors -- General purpose connectors -- AC connectors -- Automotive connectors -- Terminal strips -- Power distribution busses -- NEMA connectors -- Wire and conductors. Common wire types -- Shielded cable -- Extension cords -- Wiring harness -- Cutting and stripping wire -- Rotary conductors / Buss bars -- Electrical construction methods -- Printed circuit boards -- Wire and post construction -- Solder strip construction -- Lead wire construction -- Point-to-point construction -- Cable clamps and strain reliefs -- Insulators -- Electrical feedthroughs -- Conduit -- Service heads -- Outlet and switch boxes -- Standard NEMA enclosures -- Installing wire -- Raceway systems -- Wire duct -- Wire guide -- Cable protectors -- Acoustic devices. Bells, alarms, and horns -- Loudspeakers -- Microphones -- Geophones -- Hydrophones -- Telegraph systems -- Telephones -- Vibrators -- Lighting. Incandescent lights -- Fluorescent lights -- Neon lights -- Halogen lamps -- Mercury vapor lamps -- High-pressure sodium vapor lamps -- Standard lamp bases -- Lamp sockets -- Bulb shapes -- Color temperature -- Xenon lamps -- Carbon arc lighting -- Light emitting diodes (LED) -- Meters. Compass -- Galvanometers -- Moving coil voltmeters -- Plunger type voltmeters -- Repulsion vane voltmeters -- Dynamometer voltmeters -- Watt meters -- Watt-hour meters -- Hot wire meters -- Multimeters -- Vacuum tube voltmeters -- Digital multimeters -- Bench built multimeter -- Strip chart recorders -- Circular chart recorders -- Meter accessories -- Continuity testers -- Power indicators -- Capacitor function test -- Measuring resistance -- Wheatstone bridge -- Slidewire bridge -- Other useful test equipment -- Circuit tracers -- Logic probes -- Oscilloscopes -- Sine wave generators -- Function generators -- Frequency counters -- Insulation testers (meggers) -- Sound level meters -- Vacuum tubes. Diodes -- Grids -- Mercury vapor rectifiers -- Cathode ray tubes (CRT) -- Photosensitive tubes -- Magnetrons -- Klystrons -- Sensors. Proximity sensors -- Rotational sensors -- Linear position sensors -- Temperature sensors -- Level sensors -- Pressure sensors -- Differential pressure sensors -- Vacuum sensors -- High vacuum sensors -- Flow sensors -- Light sensors -- Vibration sensors -- Accelerometers -- Moisture detectors -- Viscometers -- Load cells -- Chip detector -- Light spectrometer -- Filter clog indicator switch -- Electrostatics. Electrostatic voltmeters -- Electrostatic air filtration -- Electrostatic loudspeakers -- High-voltage isolation -- Corona discharge and high-voltage leaks -- Electromechanical mechanisms. Solenoid door latch -- Hinge cable -- Explosive bolts -- Traction elevator -- Dash pots -- Spark plugs -- Dynamic braking -- Three door bell system -- Utility transformer -- String drives -- Motorized locking systems -- Air compressor control -- Pneumatic control stations -- Fuel injector nozzles -- Spot welders -- Toasters -- Electrical schematics. Representational schematics -- Glossary.