• Country
• Spain

• Manufacturer / Brand
• Optimus; Gerona

• Year
• 1954/1955

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 98011

• • alternative name: Pla Hermanos y Cía

• Number of Tubes
• 6

• Valves / Tubes
• ECH42 EAF42 EAF42 EL41 EM34 EZ80

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 150 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6.5 inch = 16.5 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 520 [con ojo mágico] - Optimus; Gerona

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

• Dimensions (WHD)
• 450 x 310 x 200 mm / 17.7 x 12.2 x 7.9 inch

• Net weight (2.2 lb = 1 kg)
• 7 kg / 15 lb 6.7 oz (15.419 lb)

• Price in first year of sale
• 2,250.00 Pts

• 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