• Country
• Germany

• Manufacturer / Brand
• Radiofrequenz GmbH; Berlin-Friedenau (später Loewe)

• Year
• 1923/1924

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 16264

• • Brand: Ges. für Radiotelephonie mbH

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Horn

• Material
• Metal case

• from Radiomuseum.org
• Model: OR69 - Radiofrequenz GmbH; Berlin-

• Dimensions (WHD)
• 365 x 655 x 360 mm / 14.4 x 25.8 x 14.2 inch

• Notes
• Trichterlautsprecher

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Funkgeschichte der GFGF (8966)

• Other Models

• Here you find 29 models, 19 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radiofrequenz GmbH; Berlin-Friedenau (später Loewe)