IPC Subgroup
H03G 9/06 for gain control and tone control
Introduced: September 1968
Last revised: January 2006
Full Title
Combinations of two or more types of control, e.g. gain control and tone control > in untuned amplifiers > having discharge tubes > for gain control and tone control
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- CONTROL OF AMPLIFICATION
1 direct subcode
Child Classifications
Navigate with arrow keys, Enter to open
- H03G 9/08 incorporating negative feedback