• Country
• Germany

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

• Year
• 1953–1955

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 7807

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

• Number of Tubes
• 6

• Valves / Tubes
• DC90 DK92 DF91 DF91 DAF91 DL94

• Number of Transistors

• Semiconductors
• RL231 RL231 Tr.Gl.=Metal-rectif.

• Main principle
• Superheterodyne (common); ZF/IF 452/10700 kHz

• Tuned circuits
• 8 AM circuit(s)     10 FM circuit(s)

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Line / Batteries (any type) / 110-220 / 110 & 10,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical

• Power out
• 0.5 W (unknown quality)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Noraphon-Ultra K1037 - Nora, Aron, Heliowatt; Berlin

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

• Dimensions (WHD)
• 330 x 260 x 130 mm / 13 x 10.2 x 5.1 inch

• Notes

• Dioden: 2× RL231. Allstromnetzteil: 110/160 V DC, 110/125 V AC, 220 V AC/DC.

  Der Teleskopdipol ist abnehmbar. Siehe auch Modell "Noraphon Ultra 1037".

• Net weight (2.2 lb = 1 kg)
• 3.9 kg / 8 lb 9.4 oz (8.59 lb)

• Price in first year of sale
• 258.00 DM

• Source of data
• Kat.d.Rundf.GrossH.1953/54 / Radiokatalog Band 1, Ernst Erb

• Mentioned in
• Rundfunk- und Fernseh-Katalog 1954/55

• 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