• Country
• Germany

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

• Year
• 1953–1957

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 94350

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Labor W - Dynamisches Mikrofon MD21 - Sennheiser Electronic Labor W;

• Dimensions (WHD)
• 46 x 120 x 46 mm / 1.8 x 4.7 x 1.8 inch

• Notes

• Labor-W Tauchspulen-Mikrofon MD21; Kugelcharakteristik; 50-15000 Hz. Anschluss über verschraubbare 3-polige Kleintuchel-Kupplung.

  Als Neuheit auf der Deutschen Industrie-Messe Hannover Frühjahr 1953 vorgestellt.

  Siehe auch MD21 unter Firmierung Sennheiser Electronic

• Net weight (2.2 lb = 1 kg)
• 0.3 kg / 0 lb 10.6 oz (0.661 lb)

• Price in first year of sale
• 108.00 DM

• Source of data
• HdB d.Rdf-& Ferns-GrH 1954/55

• Mentioned in
• Radio-Mentor (6/1953, S. 257)

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

• Other Models

• Here you find 296 models, 281 with images and 136 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sennheiser Electronic (Labor W); Wennebostel