• Country
• Finland

• Manufacturer / Brand
• Hellberg, Helsinki

• Year
• 1948/1949

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 205476

• Number of Tubes
• 5

• Valves / Tubes
• ECH21 ECH21 EBL21 AZ1 EM4

• Main principle
• Superheterodyne (common)

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 225; 240 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Opera 649V - Hellberg, Helsinki

• Shape
• Tablemodel, with any shape - general.

• Notes
• Dial lamps: 2x 6,3V / 0,3A
  Wave bands: 14-51m, 195-580m, 680-2000m

• Author
• Model page created by Timo Rantasaari. See "Data change" for further contributors.

• Other Models

• Here you find 34 models, 30 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hellberg, Helsinki