• Country
• Germany

• Manufacturer / Brand
• Nora, Aron, Heliowatt; Berlin

• Year
• 1955 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 173634

• Number of Tubes
• 4

• Valves / Tubes
• ECH81 EBF80 ECL80 EZ80

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 100; 125; 150; 220; 240 Volt

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

• Power out
• 1.4 W (unknown quality)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Norettine W639 [KML] - Nora, Aron, Heliowatt; Berlin

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 305 x 185 x 180 mm / 12 x 7.3 x 7.1 inch

• Notes
• ACHTUNG: Chassis führt Netzspannung! Trenntransformator verwenden!
  CAUTION! This is a "Hot Chassis" Receiver! Use isolation transformer when working on this radio!
  
  Nora Norettine W639 ist ein Exportsuper.
  Empfangsbereiche/Wavebands:
  S (KW): 6-18 MHz,
  M (MW): 520-1700 kHz,
  L (LW): 150-350 kHz.

• Net weight (2.2 lb = 1 kg)
• 3.4 kg / 7 lb 7.8 oz (7.489 lb)

• Author
• Model page created by Bernhard Nagel. See "Data change" for further contributors.

• Other Models

• Here you find 633 models, 556 with images and 342 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Nora, Aron, Heliowatt; Berlin