• Country
• Spain

• Manufacturer / Brand
• Optimus; Gerona

• Year
• 1955 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 151072

• • alternative name: Pla Hermanos y Cía

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Metal case

• from Radiomuseum.org
• Model: Duplex II - Optimus; Gerona

• Notes
• Coaxial con 1 tweeter.

• Price in first year of sale
• 1,785.00 ESP

• Source of data
• - - Manufacturers Literature

• Author
• Model page created by Miguel Bravo-Cos. See "Data change" for further contributors.

• Other Models

• Here you find 196 models, 130 with images and 98 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Optimus; Gerona