• Country
• Spain

• Manufacturer / Brand
• Big Ben (brand), Exclusivas Industriales S.A.; Barcelona

• Year
• 1951 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 215384

• • alternative name: Exclusivas Industriales S.A.

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1S5 1U4 3V4

• Number of Transistors

• Semiconductors
• Selenium-Rectifier

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / ACDC 125 / Batt.90 & 7.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 51-UB-4 - Big Ben brand, Exclusivas

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 290 x 210 x 130 mm / 11.4 x 8.3 x 5.1 inch

• Notes

• Recibe de 450 a 1600 Kcs (kHz).

  Un anuncio en La Vanguardia Española (Barcelona) de enero de 1952 lo denomina 51-B-4, desconociendo si es un error del anuncio o un modelo nuevo

• Price in first year of sale
• 2,700.00 ESP

• Author
• Model page created by José Maria Santos-Sanchez. See "Data change" for further contributors.

• Other Models

• Here you find 14 models, 7 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Big Ben (brand), Exclusivas Industriales S.A.; Barcelona