• Country
• Spain

• Manufacturer / Brand
• Optimus; Gerona

• Year
• 1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 204590

• • alternative name: Pla Hermanos y Cía

• Number of Tubes
• 7

• Valves / Tubes

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz; 2 AF stage(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 125 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 90-B - Optimus; Gerona

• Shape
• Tablemodel, low profile (big size).

• Literature/Schematics (1)
• - - Manufacturers Literature

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

• Other Models

• Here you find 197 models, 134 with images and 98 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Optimus; Gerona