H03GLevel 3

CONTROL OF AMPLIFICATION

**Definition:** This place covers:

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H03G 1/00Details of arrangements for controlling amplification

H03G 11/00Limiting amplitude

H03G 2201/00Indexing scheme relating to subclass

H03G 3/00Gain control in amplifiers or frequency changers

H03G 5/00Tone control or bandwidth control in amplifiers

H03G 7/00Volume compression or expansion in amplifiers

H03G 9/00Combinations of two or more types of control, e.g. gain control and tone control

H03G 99/00Subject matter not provided for in other groups of this subclass

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