IPC Main Group
H03J 5/00 Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
2 direct subcodes
Child Classifications
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- H03J 5/02 with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
- H03J 5/24 with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection