• Country
• Austria

• Manufacturer / Brand
• Jellinek-Mercedes & Cie; Wien

• Year
• 1929

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 83515

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Optimus - Jellinek-Mercedes & Cie; Wien

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Radio Amateur Nr. 5, 1929, Seite 476

• Author
• Model page created by Gerhard Heigl. See "Data change" for further contributors.

• Other Models

• Here you find 7 models, 5 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Jellinek-Mercedes & Cie; Wien