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Class Information
Number: 330/185
Name: Amplifiers > Input networks
Description: Subject matter involving significant detail or distinctive characteristics of the electrical circuit coupling a source of signal energy to the input of the amplifying device; or involving electrical characteristics of the source; or involving input electrical parameters of the amplifying device to which the signal input is coupled.

Sub-classes under this class:

Class Number Class Name Patents
330/191 D.c. coupled 2
330/186 To cathode 2
330/188 Transformer coupled 27

Patents under this class:

Patent Number Title Of Patent Date Issued
8310750 Waveform shaping circuit and optical switching device Nov. 13, 2012
5751555 Electronic component having reduced capacitance May. 12, 1998
4725789 Circuit arrangement for a low-noise audio frequency source Feb. 16, 1988
4600892 RF amplifier with frequency spectrum control Jul. 15, 1986

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