• 317 voltage regulator, see voltage regulator

• 386 audio amplifier IC, 316, 324; 386 circuits, 162–173, 254, 324, 352, 395, 401, 408

• 4000 series ICs, 270, 316, 327–331, 394, 399, 406; binary counter, 329; electronic switch, 270, 329; logic gate, 101, 329, 330, 331; multiplexer, 270, 329

• 555 timer IC, 316, 327; 555 and 556 timer ICs, 175, 327; 555 stepped-tone generator, 173–178, 396, 402, 409

A

• AC, see alternating current

• alternating current, 14–15, 43, 54, 122, 242, 287

• amplifier, 161, 301, 309, 324; bridge mode configuration, 351; see also opamp

• apparent power, see power

• attenuator, 201, 209, 252

• audio analyser, 121, 138

• average-responding voltmeter, see voltmeter

B

• banana plug, 128, 129

• battery, 10, 16, 273

• bench PSU, see power supply unit

• binary counter, see 4000 series ICs

• BJT, see transistor

• block diagram, 95, 115

• BNC connector, 125, 126

• breadboard, 104–111

• bridge mode, see amplifier

• bridge rectifier, see diode

• buzz tester, see continuity tester

C

• capacitor, 213–239

• charge, see electric charge

• circuit diagram, 95–119, 391–410

• circuit diagram symbol, 106, 377–390

• circuit layout software, 111

• circuit schematic, see schematic diagram

• clipping, see distortion

• coil pickup, 272, 356–362; humbucker pickup, 357–362

• colour code; DC power terminal, 124; mains wiring, 50; resistor, 192–193

• component specification sheet, see data sheet

• component symbol, see circuit diagram symbol

• conductor, 23–28

• continuity tester, 132

• coupling; AC and DC coupling, 136; coupling capacitor, 164, 217, 350

• CRO, see oscilloscope

• crossover distortion, see distortion

• current, see electric current

D

• data sheet, 93

• dB, see decibel

• DC, see direct current

• decibel, 72–78, 374

• DI box, see transformer

• DIAC, 87

• DIL, see dual inline package

• diode, 34, 39, 100, 132, 275–289; bridge rectifier, 287; diode ring, 287

• DIP, see dual inline package

• direct current, 14–15, 287; DC bias, 15, 136

• distortion, 138, 285; clipping distortion, 60, 288; crossover distortion, 62, 288; harmonic distortion, 60, 138, 287

• DMM, see multimeter

• driver, see loudspeaker

• DSO, see oscilloscope

• dual inline package, 102, 108, 259, 315

E

• E-series preferred values, 79, 190–191, 219

• earth, see ground, mains

• electricity earth leakage circuit breaker, 46

• ELCB, see earth leakage circuit breaker

• electric charge, 9, 362

• electric current, 12–15

• electric motor, 19, 21

• electricity and magnetism, 18–20, 242

• electricity generation, 42–44, 383

• electromagnetic induction, 19, 42, 356

• electromagnetic interference, 20

• electronic switch, 266–270, 300, 305; see also 4000 series ICs

• EMI, see electromagnetic interference

• equivalent series resistance, 223

• ESR, see equivalent series resistance

F

• fader, 202; see also variable resistor

• farad, 214, 220, 373

• feedback, see negative feedback (NFB)

• FET, see transistor

• filter, 218, 226, 231–239; band pass filter, 235; filter resonance, 236; high pass filter, 231, 233, 235; low pass filter, 232, 233, 235; standard filter sections, 233

• footswitch, see switch

• frequency, 57, 63; and period, 65

• frequency domain, 57, 67

• frequency response, 197, 240

• function generator, 125–127

• functional block diagram, see block diagram

• fuse, 13, 45, 50

G

• galvanic isolation, 250

• ground audio ground, 137, 390; chassis ground, 52, 390; earth ground, 53, 124, 137, 252, 390; signal ground, see audio ground

• guitar pickup, see coil pickup

H

• harmonic distortion, see distortion

• henry, 218, 373

• hertz, 65, 373

• HPF, see filter

• humbucker, see coil pickup

I

• i-v characteristic, 277, 279, 296, 304, 310, 337; see also transfer function

• IC, see integrated circuit

• impedance, 17, 139, 140, 220–224, 236, 245, 250; see also resistance

• inductor, 216–218, 235

• insulator, 23–28

• integrated circuit, 102, 315–333

J

• jack connector, 91, 272

• JFET, see transistor

K

• KCL, see Kirchhoff’s current law

• Kirchhoff’s current law, 141, 149, 374

• Kirchhoff’s voltage law, 142, 149, 374

• KVL, see Kirchhoff’s voltage law

L

• LDR, see photoresistor

• LED, see diode

• light dependant resistor, see photoresistor

• line tester, see phase tester

• line voltage, see mains electricity

• LM317, see voltage regulator

• logarithm, 73; linear and logarithmic scales, 78–79, 223

• logic gate, see 4000 series ICs

• loudspeaker, 18, 349–356; series-parallel wiring, 354

• LPF, see filter

M

• magnet wire, 21

• magnetism, see electricity and magnetism

• mains electricity, 41–55, 139

• MCB, see miniature circuit breaker

• microphone, 345–349

• miniature circuit breaker, 45

• modulation modulation effect, 179–184; ring modulator, 287

• MOSFET, see transistor

• MOV, see varistor

• multimeter, 127–132; analog multimeter (VOM), 129, 360; digital multimeter (DMM), 127; see also voltmeter

• multiplexer, see 4000 series ICs

N

• negative feedback (NFB), 317

O

• Ohm’s law, 140, 148, 374

• opamp, 316–324, 376

• open circuit, 24

• opto-isolator, see optocoupler

• optocoupler, 331–333

• oscilloscope, 133–137

P

• p-n junction, 31–34

• pad, see attenuator

• parallel rule, 199, 228, 374

• period, 63, 65, 136; see also frequency

• phase, 59–60, 136, 358; see also mains electricity

• phase tester, 47

• photoresistor, 206, 268, 331

• pickup, see coil

• pickup piezo element, 268, 362–365

• polarity, 59–60, 247, 250; reverse polarity protection, 286, 312

• pot see, variable resistor power, 18; apparent power, 140; see also mains electricity

• power supply unit bench PSU, 122–125; split rail power supply, 124, 351

• preset, see variable resistor

• PSU, see power supply unit

R

• RCBO, 46

• RCD, see residual current device

• reactance, 17, 220

• rectification, 60, 287

• rectifier, see diode

• residual current device, 45

• resistance, 17, 131; see also impedance

• resistivity, 23

• resistor, 189–211; resistor colour code, see colour code

• resonance, see filter

• reverb pan, 366

• reverse polarity protection, see polarity

• RF choke, see inductor

• ring modulator, see diode

• RMS, see root mean square

• root mean square, 65, 69

• rotary encoder, 205

S

• schematic diagram, 96–104

• scope, see oscilloscope

• SCR, see thyristor

• semiconductor; semiconductor device, 85–88; semiconductor material, 29–39

• series rule, 198, 227, 374

• short circuit, 24

• SIDAC, 88

• signal flow diagram, 96

• signal generator, see function generator

• sine wave, 63–67

• socket tester, 47

• soldering, 158

• speaker, see loudspeaker

• speaker wire, see magnet wire

• specification sheet, see data sheet

• split power supply, see power supply unit

• stabilisation network, see zobel network

• static electricity, 10–12; antistatic protection, 10, 12

• stripboard, 111–114

• switch, 51, 257–273

T

• thermionic valve, see vacuum tube

• thermistor, 206

• thyristor, 88

• time constant, see capacitor

• transducer, 345–367

• transfer function, 195, 317; see also i-v characteristic

• transformer, 241–256; DI box, 251–254; turns ratio, 244

• transient voltage suppressor, see varistor

• transistor, 35–38, 101, 291–314

• TRIAC, 88

• trimmer, see variable

• resistor true RMS voltmeter, see voltmeter

• tube, see vacuum tube

• turns ratio, see transformer

• TVS, see varistor

V

• vacuum tube, 335–343

• valve, see vacuum tube

• variable resistor, 202–206

• varistor, 86

• VDR, see varistor, voltage divider rule

• voltage, 16

• voltage dependant resistor, see varistor

• voltage divider rule, 200–202

• voltage regulator, 324–327 voltmeter average-responding vs. true RMS, 67, 71; see also multimeter

• VOM, see multimeter

W

• Watt’s law, 141, 148, 374

• wavelength, 63, 66

Z

• zobel network, 166, 353