INDEX 



Child's law 134 

 Chokes 



— design of small air cored 308 

 iron cored 309 



— smoothing 82, 104, 308 

 Chopper amplifier 619, 628, 632 

 Clamping 112 



Class B operation 180 



— C operation 210 

 Climbing amplifier 149 

 Clipping 110 

 Collector 678 

 Colour code 



ceramic capacitors 301 



• mica capacitors 300 



resistors 291 



Colour temperature 338 



Concertina phase splitter 168 



Connecting wire 325 



Connectors 322 



Constant voltage transformer 307 



Control ratio 128 



Copper oxide rectifiers 316, 317 



signal diodes 318 



Cossor double beam C.R.T. 183,456 

 Coulomb definition 6 



— in capacitors 25 

 Counters 



— cathode ray 649 



— drop 646 



— glow-discharge 649 



— Post Office, electromagnetic 531 



— radioactive, errors of 431 



— relay scale-of-two 527 

 Coupling 



— a.c, methods 153 

 transistors 686, 687 



— battery 150 



— direct, methods 149 



— factor, k 61 



— interstage 149 



— neon lamp 1 52 



— of mutual inductance 60 

 Cowan bridge 117 



Critical damping 72, 73, 76, 77, 81 



— inductance 105 

 Crossover distortion 181 

 Crystal 



— piezo-electric, transducers 48 1 , 492 



— quartz, oscillator 217 



— quartz, timer 644 



D.c. converters 700 

 — restoring 112 



Decibel 21 

 Decoupling 160, 688 

 Deflection 



— amplifiers for electrostatic C.R.T. 458 



— amplifiers for magnetic C.R.T. 466 



— defocusing 463 



— sensitivity 454 

 Dekatron counter 649, 650 

 Desynn synchronous link 496 

 Difference diode 124 

 Differential 



— cathode resistor 191 



— power amplifier 193 



— voltage amplifier 181 

 Differentiating circuit 237 

 Diode 96 



— hard 134 



— intervalve coupling by soft cold 



cathode 152 



— non-thermionic 3 1 5 



— signal 3 1 7 



— soft, cold cathode 118 



difference 124 



hot cathode 126 



— Zener 706 

 Discrimination ratio 183 

 Distortion 



— crossover 181 



— harmonic, in power stages 178 



— reduction of, by negative feedback 1 64 

 Drift 161 



Dry Leclanche cells 283 

 Duddell oscillograph 452 

 Dushman's equation 118 

 Dynamic resistance 78 



Eccles-Jordan circuit 238, 647 

 Efficiency, power transformer 70 



— triode power amplifier 142 

 Electrodes 



— concentric 576 



— fixation of 572 



— implanted 570 



— metal micro 574 



— microcapillary 534 



— non-polarizable 568 



— oxygen tension 576 



— pH 578 



— simple metal 570 

 Electrodynamic transducers 482, 492 

 Electroluminescent light sources 354 

 Electron multiplier photocells 361 

 Electronic test equipment for design and 



maintenance work 673 



712 



