• Country
• Czechoslovakia

• Manufacturer / Brand
• Radiotechna, spol. s r. o., Praha-Prelouc

• Year
• 1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 83389

• • alternative name: Kresl & spol, CS
  • Brand: Telefunken Praha

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

• Number of Tubes
• 13

• Valves / Tubes
• AH1 AF3 AF3 AB2 AF7 AC2 AC2 AB2 AC2 AD1 AD1 AZ1 AZ1

• Main principle
• Superheterodyne (common); ZF/IF 484 kHz

• Tuned circuits
• 8 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Big Ben - Radiotechna, spol. s r. o.,

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

• Dimensions (WHD)
• 655 x 482 x 327 mm / 25.8 x 19 x 12.9 inch

• Notes
• Schaltplan ist von Telefunken BIG BEN.
  Schattenzeiger als Abstimmanzeige.
  es gibt auch "Big Ben Salon" !

• Price in first year of sale
• 4,590.00 Kc

• Source of data
• -- Collector info (Sammler)

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 69 models, 62 with images and 53 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radiotechna, spol. s r. o., Praha-Prelouc