DIFF Main Group
H01F 19/00 Fixed transformers or mutual inductances of the signal type (H01F36/00 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Fixed transformers or mutual inductances of the signal type
CPC: Fixed transformers or mutual inductances of the signal type (H01F36/00 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Fixed transformers or mutual inductances of the signal type
CPC:
Fixed transformers or mutual inductances of the signal type (H01F36/00 takes precedence)
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H01F 19/02 Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range IPC+CPC Available in IPC and CPC
- H01F 19/04 Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range (resonant circuits H03H) IPC+CPC Available in IPC and CPC