(under the class definition) Subject matter including means for adjusting or setting the signal level or for obtaining a substantially constant amplitude output signal for a range of variations of the amplitude of an input signal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102, for amplitude control combined with automatic tone control.
SEE OR SEARCH CLASS
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
306+, for miscellaneous amplitude control circuits.
330, Amplifiers,
129+, 254 and 278+ for amplitude control for amplifiers. 338, Electrical Resistors,
13+, and 68+ for variable resistors.
455, Telecommunications,
232.1+, for amplitude control in a radio receiver.
