Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03F—AMPLIFIERS
  • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
  • H03F1/52—Circuit arrangements for protecting such amplifiers
  • H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
  • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
  • H01F29/12—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable coil, winding, or part thereof; having movable shield

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Control Of Electrical Variables (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=9358735

Family Applications (1)

Country Status (3)

• 0
  • NL NL57236D patent/NL57236C/xx active
• 1941
  • 1941-01-07 FR FR872155D patent/FR872155A/en not_active Expired
• 1946
  • 1946-04-05 GB GB10607/46A patent/GB610449A/en not_active Expired

Also Published As

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