• Country
• Spain

• Manufacturer / Brand
• Optimus; Gerona

• Year
• 1956/1957 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 106598

• • alternative name: Pla Hermanos y Cía

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

• Number of Tubes
• 3

• Valves / Tubes
• EF86 EF86 EF86

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit. / DC 250 & AC 6,3 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 10 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: 142-AF - Optimus; Gerona

• Notes
• Preamplificador para alta fidelidad. Necesita +250 V.cc/ 4 mA y 6,3 V.ca/0,7 mA. tomados del equipo principal.

• Price in first year of sale
• 2,624.00 ESP

• Source of data
• -- Original prospect or advert

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by Getulio Jimenez-Gomez. 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