ClassID:

219377

H03F3/45251 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit Complementary Pl types having parallel inputs and being supplied in series

Sub-classes:
Recent Application in this class: