• Country
• Germany

• Manufacturer / Brand
• Sennheiser Electronic (Labor W); Wennebostel

• Year
• 1958

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 71330

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Labor W, MD4 - Sennheiser Electronic Labor W;

• Dimensions (WHD)
• 60 x 180 x 60 mm / 2.4 x 7.1 x 2.4 inch

• Notes
• Dynamisches Tauchspulen-Handmikrofon mit sehr geringer Rückkopplungsgefahr. Frequenzbereich 50 bis 10000 Hz. Impedanz 200 Ohm. Auch als Variante mit Sprachschalter gebaut (MD4S). Baugleich mit DM4(S) von "Labor W".

• Net weight (2.2 lb = 1 kg)
• 0.4 kg / 0 lb 14.1 oz (0.881 lb)

• Price in first year of sale
• 136.00 DM

• Source of data
• -- Original prospect or advert / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• HdB d.Rdf-& Ferns-GrH 1954/55

• Author
• Model page created by Werner Raacke. See "Data change" for further contributors.

• Other Models

• Here you find 295 models, 280 with images and 135 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sennheiser Electronic (Labor W); Wennebostel