CPC Subgroup
H01F 19/04 Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range (resonant circuits H03H)
Full Title
Fixed transformers or mutual inductances of the signal type (H01F36/00 takes precedence) > Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range (resonant circuits H03H)
2 direct subcodes
Child Classifications
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- H01F 19/06 Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range
- H01F 19/08 Transformers having magnetic bias, e.g. for handling pulses