• Country
• Germany

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

• Year
• 1932–1934

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 7985

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

• Number of Tubes
• 3

• Valves / Tubes
• RE034 RE034 RES164

• 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
• Storage and/or dry batteries / 100+4 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (free mooving - only possible past 1931).

• from Radiomuseum.org
• Model: Form B3K - Nora, Aron, Heliowatt; Berlin

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 370 x 430 x 200 mm / 14.6 x 16.9 x 7.9 inch

• Notes

• Batterie-Koffer

  Preis ohne Röhren, zusätzlich Röhrensatz Preis: 24,70 RM

  Pfalzgraf-Akkumulatoren-Batterie 4 V, 27 Ah: 11,- RM

  Anodenbatterie 100 V: 9,- RM

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

• Price in first year of sale
• 85.00 RM +

• Source of data
• Katalog Radio-Zentrale Prohaska 1932/33 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Röhren in FS-Bestückungstabellen

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• 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