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Publication of BE347135ApublicationCriticalpatent/BE347135A/fr
H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F29/00—Variable transformers or inductances not covered by group H01F21/00
H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
Schaltanordnung fuer die stufenweise, unterbrechungslose AEnderung einer elektrischen Wechselspannung mittels Stufentransformators und Spannungsteilers