• Country
• Germany

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

• Year
• 1993 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 132671

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• 2 Loudspeakers

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Stereo Headphones HD 433 - Sennheiser Electronic Labor W;

• Notes
• HD 433, Stereo Headphones. Dynamic open, 18-20000 Hz, 32 Ohm, 100 mW.

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

• Source of data
• - - Data from my own collection

• Author
• Model page created by Sándor Selyem-Tóth. See "Data change" for further contributors.

• Other Models

• Here you find 292 models, 277 with images and 133 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sennheiser Electronic (Labor W); Wennebostel