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chapter Seven COMPLEX TRANSMITTERS ______ _ 141
chapter Ten RELAYS _________________ _ 217
chapter Fourteen COMPLETE CONTROL SYSTEMS _ _ _ 273
actuator adjustment ampliﬁer antenna armature arrangement B-batteries battery bulb capacitor chassis choke circuit close coil connected contacts control systems core current change current drain diode drop dry cells elevator enameled wire engine escapement ﬁeld ﬁlament ﬁne ﬁrst ﬁt ﬁtted ﬂying frequency gear give grid leak hold hole installation insulated jack linkage loop magnet metal modulator motor mounted move multivibrator MUSIC WIRE needle valve neutral ni-cads normal ohms operation oscillator output phenolic plane plate current plug position potentiometer pulse rate pulser radio radio-control relay current resistor rf chokes rotation rotor rubber rudder screen grid screw seen in Fig sensitive relay servo shaft shown in Fig side signal simple socket soldered speciﬁed speed storage cells subminiature switch test meter tone receiver torque rod trans transistor transmitter tube tube socket tuned turns unit voltage volts winding wire