(under the class definition) Subject matter including a circuit in the signal path in the conductors of which electrical signal flows so that at any instant the signal
potential in the conductors is substantially equal and opposite in sign with reference to ground or some other convenient reference potential plane; and wherein further, in the signal path there is included a circuit in the conductors of which signal flows which is unbalanced to ground comprising a single-sided output load usually of two conductors one of which is at ground or reference potential.
(1) Note. Subject matter as defined above including additional unbalanced output or load circuits as set forth above is also classified in this subclass.
(2) Note. Balanced circuits are considered as single sources or single loads in this class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
69, for sum and difference amplifiers.
117, for amplifiers having unbalanced to balanced coupling. 118, for amplifiers including a push-pull stage. See the search notes thereunder.
301, for semiconductor amplifiers having balanced to unbalanced circuits.
SEE OR SEARCH CLASS
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
594, for miscellaneous circuits with particular coupling or decoupling means.
329, Demodulators, appropriate subclasses for demodulators with balanced to unbalanced coupling.
333, Wave Transmission Lines and Networks,
4+, and 25+ for balanced to unbalanced passive circuits. See the search notes under subclasses 4 and 25.
