• Year
  • 1931
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 244109

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Power type and voltage
  • Direct Current supply (DC) / 220 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 26.7 cm = 10.5 inch
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Helios Dynamus 48 - Grassmann, Peter, RFW, Radio-
  • Dimensions (WHD)
  • 267 x 285 x 132 mm / 10.5 x 11.2 x 5.2 inch
  • Notes
  • Schwingspule ca. 3,5 Ω
    Erregerspule ca. 600 Ω

    Ausführungen als Chassis oder im Gehäuse.

    Es gab eine Wechsel- und Gleichstromausführung.

     

  • Price in first year of sale
  • 48.00 RM
  • Mentioned in
  • Die Sendung Nr.20 Mai 1931
  • Author
  • Model page created by a member from D. See "Data change" for further contributors.

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The model Helios Dynamus is part of the collections of the following members.

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