• Country
• Germany

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

• Year
• 1931/1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 8028

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

• Number of Tubes
• 4

• Valves / Tubes
• REN904 REN904 RE134 or RES164 RGN354

• 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) / 110-240 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: W3L [eckig, Bakelit] - Nora, Aron, Heliowatt; Berlin

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 320 x 400 x 160 mm / 12.6 x 15.7 x 6.3 inch

• Notes

• Eckige Form, ab 1932 mit Freischwinger, siehe dort

  Auch Modell W3LE als Exportgerät.

  Mehrpreis RES164: 4,90 RM

• Price in first year of sale
• 134.00 RM !

• Source of data
• Katalog Radio-Zentrale Prohaska 1931/32 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Röhren in FS-Bestückungstabellen

• Mentioned in
• -- Original prospect or advert (Tygodnik Illustrowany 11/12, 1931)

• 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