• Year
  • 1953
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 222941
    • Brand: Isophon

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Power out
  • 3 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: P915 - Isophon, E. Fritz & Co. GmbH.;
  • Shape
  • Chassis only or for «building in»
  • Dimensions (WHD)
  • 95 x 70 x 155 mm / 3.7 x 2.8 x 6.1 inch
  • Notes
  • Oval-Lautsprecher Isophon P915.
    Sprechleistung 3 W.
    Preis ohne Trafo. Empfohlener Trafo: El48 {5 DM}.

    Frequenzbereich: 75-11.000 Hz, Eigenresonanz: 140 Hz, Impedanz: 4 Ω, Magnetsystem: AlNiCo, 8000 Gauss, 25.000 Maxwell, Spalttiefe: 5 mm, Kerndurchmesser: 19 mm.

  • Net weight (2.2 lb = 1 kg)
  • 0.510 kg / 1 lb 2 oz (1.123 lb)
  • Price in first year of sale
  • 20.00 DM
  • Mentioned in
  • -- Original prospect or advert (Preisliste Radio-Fett, 1955)
  • Author
  • Model page created by a member from D. See "Data change" for further contributors.

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