• Country
• Germany

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

• Year
• 1933–1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 7969

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

• Number of Tubes
• 5

• Valves / Tubes
• RENS1224 RENS1234 REN924 RENS1374d RGN1064

• Main principle
• Superheterodyne (common); ZF/IF 123 kHz

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

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

• Material
• Bakelite case

• from Radiomuseum.org
• Model: W504L [Presstoffgehäuse] - Nora, Aron, Heliowatt; Berlin

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

• Dimensions (WHD)
• 350 x 411 x 253 mm / 13.8 x 16.2 x 10 inch

• Price in first year of sale
• 298.00 RM !

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

• Circuit diagram reference
• Röhren in FS-Bestückungstabellen

• Mentioned in
• Handbuch der Funktechnik und ihrer Grenzgebiete Bände 1 bis 12

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

• 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