INDEX 



A.c. relays 522 



Acceptor amplifier 198, 200, 203, 631, 



709 

 Accumulator cells 288, 660 

 Active elements 3 

 Air gap 54 



Amplification factor 135 

 Amplifier, acceptor 198, 200, 203 



— carrier amplifier 619 



— differential power 193 



— differential voltage 181 



— double sided 176 



— galvanometer amplifier 620 



— loudspeaker 636 



— pentode, simple power 147 

 simple voltage 147 



— practical a.c. coupled 618, 619, 634 



— practical chopper amplifier 632 



— practical direct coupled 623, 634 



— transistor a.c. coupled 684, 696 



— transistor chopper 698 



— transistor direct coupled 697 



— triode, simple power 140, 141 

 simple voltage 137 



— tuned 196 

 Anode 118,133 



— characteristic of tetrode 145 



— characteristic of triode 135 



— incremental resistance 135 

 Astigmatism 455 

 Attenuator 



— bridged T 11 



— constant resistance 1 6 

 Autotransformer 306 



Avalanche formation in G-M tubes 426 



Balance 



— control in differential voltage 



amplifier, gain 189 



— control in differential voltage ampli- 



fier, static 190 

 Balanced input 181 

 Ballast resistance 1 1 9 

 Base (of transistor) 678 

 Batteries 283 

 Bi-stable circuit 124, 238 



Bleater 636 



Blocking capacitance 153, 



— of amplifiers 616 



— oscillator 215 

 Blumlein integrator 241 

 Bridge 



— Cowan 1 1 7 



— for use with mechanoelectric trans- 



ducer 491 



— rectifying 97,315,317 



— unbalanced Wheatstone 12 



— Wien 48 

 Brimistor 340 

 Bucket machine 498 



Cables 325 



Cadmium selenide photocell 377 



Calibrators 628 



Capacitance 



— in parallel 25 



— in eries 26 



— manometer 505 



— single 25 

 Capacitors 297 



— electrolytic 302 



— high k ceramic 301 



— low k ceramic 300 



— mica 299 



— paper 298 



— variable 303 



Carbon resistor noise 254, 293 



Cascode circuit 257, 590 



Catching 109 



Cathodally screened cathode follower 259 



Cathode 



— cold 118 



— coupled flip-flop 235 



— directly heated 1 32 



— follower 169, 259 



— indirectly heated 133 



— of photoemissive cell 356 



— ray oscilloscope light sources 352 



tube, electrostatic type 452 



hybrid type 469 



magnetic type 460 



Chassis 327 



711 



