• Country
• Germany

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

• Year
• 1994

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 161328

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
• - without

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Amplitudenlinearität HEV70 - Sennheiser Electronic Labor W;

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

• Notes
• Amplitudenlinearität HEV70, 10 Hz - 20.000 Hz (+- 1 dB), Line-Eingang / Empfindlichkeit Impedanz, 250 mV / 10 kOhm. Dieser Verstärker ist nur zusammen mit dem Elektrostat-Kopfhörer Sennheiser HE 60 verwendbar.

• Source of data
• -- Original prospect or advert

• Author
• Model page created by Karlheinz Fischer. 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