• Country
• Germany

• Manufacturer / Brand
• Nora, Aron, Heliowatt; Berlin

• Year
• 1933/1934

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 7945

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Lautsprecher L31 - Nora, Aron, Heliowatt; Berlin

• Notes
• wie L30, aber Luxus-Holzgeh.

• Price in first year of sale
• 45.00 RM

• Source of data
• Radiokatalog Band 1, Ernst Erb

• Other Models

• Here you find 633 models, 555 with images and 342 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Nora, Aron, Heliowatt; Berlin