• Country
• Germany

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

• Year
• 1975–1977

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 71278

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: MD402LM - Sennheiser Electronic Labor W;

• Dimensions (WHD)
• 21 x 21 x 145 mm / 0.8 x 0.8 x 5.7 inch

• Notes
• Dynamisches Mikrofon, Übertragungsbereich 80 bis 13000 Hz, Richtcharakteristik Superniere, Empfindlichkeit 0,23 mV/µbar ± 3 dB; Impedanz: 750 Ohm. Anschlußkabel mit DIN- oder Klinkenstecker.

• Net weight (2.2 lb = 1 kg)
• 0.2 kg / 0 lb 7 oz (0.441 lb)

• Source of data
• Handbuch VDRG 1977/1978 / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• -- Original prospect or advert

• Literature/Schematics (1)
• Funk-Technik (FT) (5/1975, Heftumschlag / Werbeanzeige)

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

• Other Models

• Here you find 294 models, 278 with images and 134 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sennheiser Electronic (Labor W); Wennebostel