• Country
• Germany

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

• Year
• 1929–1931

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 8081

• Number of Tubes
• 8

• Valves / Tubes
• REN804 REN1004 REN1004 RE604 RE604 RE604 RE604 R250

• Main principle
• TRF with regeneration; 2 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Alternating Current supply (AC) / 120-240 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: K7WV - Nora, Aron, Heliowatt; Berlin

• Dimensions (WHD)
• 520 x 195 x 360 mm / 20.5 x 7.7 x 14.2 inch

• Notes

• Audion-Ortsempfänger mit Gegentakt-Vorverstärker und Gegentakt-Endstufe, widerstandsgekoppelt.

• Price in first year of sale
• 400.00 RM

• Source of data
• Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• FS-Bestückungstab. (wahrsch. m.Fehler)

• Mentioned in
• Funkgeschichte der GFGF (9072)

• Literature/Schematics (1)
• Arlt Radiokatalog 1930

• 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