• Country
• Germany

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

• Year
• 1979/1980

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 127707

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Kopfhörer HD400-6 - Sennheiser Electronic Labor W;

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• Dynamisches Wandlerprinzip, Stahlanschlußkabel, Schaumnetzpolster, Kabel mit Klinkenstecker zum Anschluß an den Infrarot - Empfänger EKI 1019, Übertragungsbereich 20 bis 18000 Hz, Nennimpedanz 300 Ohm.

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

• Price in first year of sale
• 43.00 DM

• Mentioned in
• -- Original-techn. papers. (1979/1980)

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

• Other Models

• Here you find 298 models, 283 with images and 138 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sennheiser Electronic (Labor W); Wennebostel