• Country
• Great Britain (UK)

• Manufacturer / Brand
• Palmer (London) Ltd., C.F.; London

• Year
• 1910 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 208999

• 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.

• Other Models

• Here you find 2 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Palmer (London) Ltd., C.F.; London