• Country
• Germany

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

• Year
• 1993 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 352683

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Batteries / addl. power jack / NiMh: 2,4 / 12 Volt

• Loudspeaker
• - Is a Headphone or Earphone

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Set 100 Mono- Infrared Wireless Headphones 3258 Infraport TI100 RI100 - Sennheiser Electronic Labor W;

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Mentioned in
• -- Original prospect or advert

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

• Other Models

• Here you find 293 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