• Country
• Germany

• Manufacturer / Brand
• Opta Radio AG; Wüstenbrand

• Year
• 1943 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 326865

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

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 13 cm = 5.1 inch

• Power out
• 1 W (unknown quality)

• from Radiomuseum.org
• Model: Lautsprecher-Chassis LK3902 - Opta Radio AG; Wüstenbrand

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 133 x 133 x 73 mm / 5.2 x 5.2 x 2.9 inch

• Notes

• Impedanz 3 Ω

• Net weight (2.2 lb = 1 kg)
• 0.450 kg / 0 lb 15.9 oz (0.991 lb)

• Mentioned in
• -- Original prospect or advert

• Author
• Model page created by Wolfgang Eckardt. See "Data change" for further contributors.

• Other Models

• Here you find 12 models, 5 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Opta Radio AG; Wüstenbrand