• Country
• Germany

• Manufacturer / Brand
• Neckermann-Versand KG; Frankfurt a.M.

• Year
• 1965 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 215798

• • Brand: Twen Tone

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

• Number of Transistors
• 10

• Semiconductors
• AF121 or. AF134 AF125 AF137 AF124 AF124 2SB257 SFT353 SFT351 AC117 AC117 AA112 AA112 OA150 or. 1N60 OA150 or. 1N60

• Main principle
• Superheterodyne (common); ZF/IF 460/10700 kHz; 3 AF stage(s)

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

• Power type and voltage
• Batteries / addl. power jack / 2 x 4,5 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet. / Ø 10 cm = 3.9 inch

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Körting Arosa Ch= 28143 Art.Nr. 829/226 - Neckermann-Versand KG;

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

• Dimensions (WHD)
• 285 x 190 x 90 mm / 11.2 x 7.5 x 3.5 inch

• Notes
• Neckermann Arosa Artikel-Nr. 829/226 (Körting 28143),
  Stromversorgung über zwei 4,5 V Flachbatterien die mittels Anschlussteil in Reihe geschaltet werden, Klangtaste, ext. Stromversorgung möglich, Teleskopantenne, Buchse Ext. Antenne, Kopfhörer und DIN-Buchse.
  Fertigung bei Körting für Neckermann Versand KG, Frankfurt a.M.

• Net weight (2.2 lb = 1 kg)
• 1.8 kg / 3 lb 15.4 oz (3.965 lb)

• Author
• Model page created by Karlheinz Fischer. See "Data change" for further contributors.

• Other Models

• Here you find 577 models, 514 with images and 207 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Neckermann-Versand KG; Frankfurt a.M.