Induction Coil with Interrupter H 31 (H30 + H40)

Palmer (London) Ltd., C.F.; London

  • Year
  • 1910 ??
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 208999

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Induction Coil with Interrupter H 31 - Palmer London Ltd., C.F.;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 500 x 0 x 0 mm / 19.7 x 0 x 0 inch
  • Notes
  • J F Palmer Induction Coil with Interrupter H 31;
    Sledge type, after the model of Prof. du Bois-Reymond, with Helmholtz modification of the Neef Hammer.
    300 (prim.) to 7.500 (sec.) coil turns. Sourced by NiFe cells.
    Coil only has type H 30.
    Variable Interrupter only (4 - 100 contacts/sec.) has type H 40.
  • Mentioned in
  • - - Manufacturers Literature (Undated catalogue; provided by cnum.cnam.fr)
  • Author
  • Model page created by a member from A. See "Data change" for further contributors.

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