IPC Subgroup
H03F 3/54 Amplifiers using transit-time effect in tubes or semiconductor devices
Introduced: September 1968
Last revised: January 2006
Full Title
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements > Amplifiers using transit-time effect in tubes or semiconductor devices
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- AMPLIFIERS
Related Keywords
TRANSIT -time tubes used as amplifiers
3 direct subcodes
Child Classifications
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