• Country
• Germany

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

• Year
• 1974 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 113361

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - Is a Headphone or Earphone

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Dynamischer Stielhörer HD412X - Sennheiser Electronic Labor W;

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• Verwendung paarweise (für Stereo) in Phonobars in Plattengeschäften usw., einzeln verpackt geliefert mit Spiralkabel und Halte-Ring für die Bohrung in der Baroberseite.

• Source of data
• -- Collector info (Sammler)

• Other Models

• Here you find 292 models, 277 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