• Year
  • 1915 ??
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 279815
    • alternative name: Jewell

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Direct Current Voltmeter Model 1 - Weston Electrical Instrument
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Source of data
  • -- Original prospect or advert

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