Page 82 - RTH3BA Preview

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ground wave 331 tuning fork example 172
history of sunspot cycles 328 using the resonance equation 176
ionosphere 325 S
layers of the atmosphere 327
maximum usable frequency 329 Semiconductors/transistors 244
multipath reception 322
application of a diode 256
selective fading 322
barrier potential 249
skip distance 331
beta 259
sporadic-E 328
biasing transistors 267
virtual height 329
BJT 260
R calculating the current gain 259
characteristic curve of a diode 252
RLC circuits 165 common-base 265
a “crystal” set receiver 182 common-collector 264
application for a series resonant circuit 182 common-emitter 264
applications of resonant circuits 181 comparing a triode and BJT 260
bandwidth of a tuned circuit 177 configuration characteristics 267
continuous oscillation 172 covalent bonding 245
damped oscillations 172 crowbar circuit 277, 278
deriving the resonance equation 175 depletion mode MOSFET 273
describing a selectivity curve 183 diode clamping 257
flywheel effect 180 doping (N-type) 246
imaginary number line 166 doping (P-Type) 247
imaginary numbers 167 efficiency of shunt regulators 254
impedance above and below resonance 178 emitter-follower 266
impedance of a parallel LR circuit 170 enhancement mode 273, 274
impedance of a tuned circuit 177 forward biased PN junction diode 251
Impedance versus frequency 179 game with missing square analogy 248
L current lags - C current leads 166 germanium 244
LC resonant circuits 173 holes 247
polar form 165 Input Impedance 260
Q of a resonant circuit 176 intrinsic semiconductor 245
real numbers 167 inventors - transistor 263
rectangular form 165 inverse current feedback 269
resonance 171 JFET amplifier 273
resonant frequency 175 junction field effect transistor 270
resonance equation 175 light emitting diodes 255
selectivity curve 183 MOSFET symbols 274
the effect of losses 180 MOSFETs 273
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