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RADIO FREQUENCY LABORATOIRES I
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RADIO FREQUENCY LABORATOIRES I
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Application filed by RADIO FREQUENCY LABORATOIRES IfiledCriticalRADIO FREQUENCY LABORATOIRES I
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Publication of FR575266ApublicationCriticalpatent/FR575266A/fr
H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F21/00—Variable inductances or transformers of the signal type
H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
H01F21/04—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by relative movement of turns or parts of windings