• Country
• Sweden

• Manufacturer / Brand
• SR, Svenska Radioaktiebolaget (SRA, Radiola); Stockholm

• Year
• 1947

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 106902

• • Brand: Radiola

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

• Number of Tubes
• 4

• Valves / Tubes
• ECH21 ECH21 EBL21 AZ1

• Main principle
• Superheterodyne (common); ZF/IF 452 kHz

• Wave bands
• Broadcast, Long Wave and more than two Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 110-245 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 15 cm = 5.9 inch

• Power out
• 3.5 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Radiola 474V - SR, Svenska Radioaktiebolaget

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

• Dimensions (WHD)
• 470 x 310 x 245 mm / 18.5 x 12.2 x 9.6 inch

• Notes

• Five SW-bands. Variable bandwidth.

• Net weight (2.2 lb = 1 kg)
• 10.5 kg / 23 lb 2 oz (23.128 lb)

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Albert Aerts †. See "Data change" for further contributors.

• Other Models

• Here you find 276 models, 171 with images and 163 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from SR, Svenska Radioaktiebolaget (SRA, Radiola); Stockholm