transformer (Cont.)
toroidal, 290–291
transmission-line, 297–299
turns ratio of, 287–288
unbal, 295
unbalanced-to-balanced, 295
volt-ampere capacity of, 337–338
transient
definition of, 346–347
suppressor, 346
transistor
amplifier, basic, bipolar, 381–382
amplifier, basic, field-effect, 382–383
base of, 353
battery, 106
biasing, 353–357, 367–370
bipolar, 352–364, 425
collector of, 352
drain of, 365
emitter of, 352
field-effect, 365–378, 425
gate of, 365
NPN, 352
PNP, 352–353
power, 344–345
size of, 315
source of, 365
transistor-transistor logic, 496–497
transmatch, 299, 474
transmission line
balanced, 295
characteristic impedance of, 236–238
coaxial, 170, 236–237, 423
dielectric in, 170
as inductor, 169–170
mismatched, 275
parallel-wire, 169–170, 236–237, 423
power measurement in, 274
section, 280
standing waves in, 275–276
transformer, 297–299
unbalanced, 295
velocity factor of, 280
waveguide, 423, 483–484
transmission, wireless, 407–418
transponder, 589
treble, 389, 538
triangular wave, 146–147
trimmer capacitor, 183
triode tube, 507
tropospheric propagation, 422
true power, 267–275, 281
TTL. See transistor-transistor logic
TU. See terminal unit
tube. See electron tube
tubular capacitor, 180
tuned-circuit coupling, 390–391
tuned power amplifier, 391–393
tuner, 543
tuning control, 393
tunnel diode, 331
turns ratio, 287–288
turntable, 542
TV. See television
tweeter, 543
twin T oscillator, 401
twinlead, 295
two-wire ac system, 345
U
UHF. See ultrahigh frequency
ULSI. See ultra-large-scale integration
ultrahigh frequency, 417, 424, 513
ultra-large-scale integration, 498
ultrasonic motion detector, 591
ultraviolet, 49
unbal, 295
unbalanced load, 295
unbalanced transmission line 295
uninterruptible power supply, 107
Universal Serial Bus, 573
unwanted inductance, 171
upper sideband, 410–411
UPS. See uninterruptible power supply
USB. See upper sideband, Universal Serial Bus
user identification, 565
username, 582–583
V
VA power, 268–274
vacuum tube, 504
valve. See electron tube
Index 697