331 / | HD | OSCILLATORS |
1 R | DF | AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS {16} |
34 | DF | .~ Particular frequency control means {2} |
36 R | DF | .~.~ Reactance device (e.g., variable capacitors, saturable inductors, reactance tubes, etc.) {2} |
36 C | .~.~.~ Capacitor controlled AFC |