FreeSound HDR4 - T4
Sennheiser Electronic (Labor W); Wennebostel
- Country
- Germany
- Manufacturer / Brand
- Sennheiser Electronic (Labor W); Wennebostel
- Year
- 1997
- Category
- Loudspeaker, headphone or earphone
- Radiomuseum.org ID
- 252614
- Number of Transistors
- Semiconductors present.
- Semiconductors
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- Batteries / addl. power jack / 2,4 / 12 Volt
- Loudspeaker
- - Is a Headphone or Earphone
- Power out
- 0.2 W (undistorted)
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: FreeSound HDR4 - T4 - Sennheiser Electronic Labor W;
- Notes
-
Sennheiser Wireless-Kopfhörer Modell FreeSound HDR4, mit 2,4 V Akku (Modell BA151),
Ladestation/Sende-Einheit Modell Free Sound T4, mit Lade-Ausgang für Kopfhöhrer-Akku und mit externer Speisung über Adaptor,
AC/DC Adaptor Modell NT92/NG12DC (ein: 230 V AC, aus: 12V DC / 0,1 A).
- Net weight (2.2 lb = 1 kg)
- 0.2 kg / 0 lb 7 oz (0.441 lb)
- Author
- Model page created by Edoardo Sigismondo. 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
Collections
The model FreeSound is part of the collections of the following members.