INDEX 



Modulus 31 

 Motor boating 159 

 Multi-vibrator 



— cathode coupled 231 



— symmetrical 227 



— transistorized 704 



— used as divider 645 



— used as stimulator 604 

 Mutual conductance 135 



— inductance 56 



— resistance 692 



Negative current feedback 250 



— feedback and noise 256 



— resistance 170 



— voltage feedback 1 64 

 Neon lamp coupling 1 52 



stimulator 603 



Networks, easily solved 9 



— r 17 



— pi 17 

 Ni-Fe cells 289 

 Noise 253 



— as affecting amplifier gain 616 



— carbon resistor 254 



— flicker 255 



— homogeneous resistance 253 



— in variable resistors 296 



— negative feedback and 256 



— partition 255 



— shot 254 

 Nomotron counter 649 

 Non-polarizable electrodes 559, 568 

 Non-thermionic diodes 3 1 5 



Null indicators, magic eye 45 1 

 neon lamp 45 1 



Ohm's law 6 



' magnetic ' 54 



with reactances present 32 



Optimum inductance 104 



— load 142, 147 

 Oscillator 



— blocking 215 

 — crystal 217 



— LC 208 



— RC 221 



transistorized 705 



— relaxation 125 



— sine wave 208 



— square wave 226 



Output 



— impedance of cathode follower 173 



— power of triode valve 142 



— resistance of earthed-collector tran- 



sistor 695 



— resistance of earthed-emitter tran- 



sistor 683 



Panel 327 

 Parallel 



— capacitances in 25 



— resistance and capacitance 40, 41 



— resistances in 7 



— resonance 78 



— self inductances in 57 



— r filter 50 

 Partition noise 255 

 Passive elements 3 



Peak inverse voltage (P.I.V.) 315 

 Penthouse waveform 25 1 

 Pentode valve 146 

 Penwriter 494, 638 



— amplifier ■ 637 

 Permeability 54 

 Phantastron 245 

 Phase 



— angle for series C and R 3 1 



— of capacitance current 27 



— sensitive detectors 114 



— shift, classical filter sections, low-pass 



86 



high-pass 88 



relationship to transmission char- 

 acteristic 52 



RC filters, limited 43 



using y operator 36 



— shifting circuits 45 



— splitter, concertina 168 

 Photoelectric detectors 356 



cadmium-selenide photocell 377 



■ electron-multiplier photocells 



361 

 germanium junction photodiode 



378 

 lead-sulphide photoconductive 



cell 373 



phototransistor 381 



selenium barrier layer photocell 



367 



types of cathode 356, 357, 358 



vacuum and gas filled photocells 



358 

 Photographic recording methods 639 

 Photometric units 333 



715 



