• Country
• Germany

• Manufacturer / Brand
• Welker, Ing. Erich; Borna b. Leipzig

• Year
• 1951–1967 ?

• Category
• Detector-Radio (Crystal or diode, without tubes/transistors)

• Radiomuseum.org ID
• 80952

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

• Number of Transistors

• Semiconductors
• GDT or. OA625

• Main principle
• Crystal or Solid State Detector

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Detektor-Empfänger W43/D [Ge-Diode] - Welker, Ing. Erich; Borna b.

• Dimensions (WHD)
• 62 x 29 x 72 mm / 2.4 x 1.1 x 2.8 inch

• Notes

• Bis 1954 im "Gebrauchswarenkatalog Rundfunk Fernsehen" mit Sirutor vorgestellt (siehe hier).  Nach 1952 aber mit  Ge-Diode nachweisbar und bis 1966/67 noch im Angebot. 

• Net weight (2.2 lb = 1 kg)
• 0.1 kg / 0 lb 3.5 oz (0.22 lb)

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Literature/Schematics (1)
• Funkgeschichte der GFGF (2013, Heft 208)

• Author
• Model page created by Bernd P. Kieck. See "Data change" for further contributors.

• Other Models

• Here you find 8 models, 5 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Welker, Ing. Erich; Borna b. Leipzig