• Country
• Germany

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

• Year
• 2006 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 356218

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Batteries / addl. power jack / LI-Po: 3,7 / 9 Volt

• Loudspeaker
• 2 Loudspeakers

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Wireless Stereo Headphone RS4200 - TR4200 & RR4200 - Sennheiser Electronic Labor W;

• Shape
• Miscellaneous shapes - described under notes.

• Notes

• Sennheiser Wireless Stereo Headphone System RS4200,

  • Complete name RS4200
  • Transmitter TR4200
  • Headphone RR4200
  • System Modulation FM stereo
  • Carrier frequencies 863.3 / 864.0 / 864.7 MHz
  • Range up to 100 m in the open field
  • AF frequency response 50 Hz–16 kHz
  • THD < 1 %
  • Transmitter net weight: 150 g
  • Rechargeable receiver battery Li-Po 3,7 V 150 mAh, model BA 300

  Made in China

• Net weight (2.2 lb = 1 kg)
• 0.050 kg / 0 lb 1.8 oz (0.11 lb)

• Mentioned in
• - - Manufacturers Literature

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

• Other Models

• Here you find 295 models, 280 with images and 135 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sennheiser Electronic (Labor W); Wennebostel