• Country
• Spain

• Manufacturer / Brand
• Optimus; Gerona

• Year
• 1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 97915

• • alternative name: Pla Hermanos y Cía

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

• Number of Tubes
• 5

• Valves / Tubes
• ECH3 EF9 EBC3 EL3 AZ1 or 1883

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

• Wave bands
• Broadcast and Short Wave (SW).

• 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: 204 - Optimus; Gerona

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Mentioned in
• Radio Historia y Técnica, J.J.E. (Página 250)

• Literature/Schematics (1)
• -- Schematic (La radio en esquemas)

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

• Other Models

• Here you find 197 models, 131 with images and 98 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Optimus; Gerona