• Country
• Germany

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

• Year
• 1933–1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 7959

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

• Number of Tubes
• 3

• Valves / Tubes
• RENS1894 RENS1820 RENS1823d

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); 1 Special; 1 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

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

• Power type and voltage
• Direct Current supply (DC) / 110; 125; 220; 240 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: G321L [Holzgehäuse] - Nora, Aron, Heliowatt; Berlin

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

• Dimensions (WHD)
• 365 x 440 x 253 mm / 14.4 x 17.3 x 10 inch

• Price in first year of sale
• 220.00 RM !

• Source of data
• Radio-Zentrale Prohaska 1933/34 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange+Schenk+FS-Röhrenbestückung

• Mentioned in
• Radio-Katalog Fricke, Radio Groß-Vertrieb, 1934/35

• Literature/Schematics (1)
• -- Schematic (OTO-Schaltungen)

• Other Models

• Here you find 633 models, 555 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