• Country
• Germany

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

• Year
• 1938/1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 7858

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

• Number of Tubes
• 4

• Valves / Tubes
• AF3 AF7 AL4 AZ1

• Main principle
• TRF without regeneration; 1 Special; 1 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110, 125, 220, 240 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Csardas W28 [Holzgehäuse] - Nora, Aron, Heliowatt; Berlin

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

• Dimensions (WHD)
• 550 x 320 x 280 mm / 21.7 x 12.6 x 11 inch

• Net weight (2.2 lb = 1 kg)
• 13 kg / 28 lb 10.1 oz (28.634 lb)

• Price in first year of sale
• 177.00 RM

• Source of data
• Handbuch WDRG 1938 / Radiokatalog Band 1, Ernst Erb

• Literature/Schematics (1)
• Lange / Nowisch, "Empfängerschaltungen der Radioindustrie"

• 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