IPC Subgroup
H03G 3/02 Manually-operated control
Introduced: September 1968
Last revised: January 2006
Full Title
Gain control in amplifiers or frequency changers > Manually-operated control
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- CONTROL OF AMPLIFICATION
2 direct subcodes
Child Classifications
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