• Year
  • 1939/1940
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 71964

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Helios Perma 681 - Grassmann, Peter, RFW, Radio-
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 410 x 530 x 27 mm / 16.1 x 20.9 x 1.1 inch
  • Notes
  • Anpassungswerte: 1/2/3,5/7/15 kOhm. Maximalbelastbarkeit: 10 W.
  • Net weight (2.2 lb = 1 kg)
  • 11.5 kg / 25 lb 5.3 oz (25.33 lb)
  • Price in first year of sale
  • 106.00 RM
  • Author
  • Model page created by Michael Seiffert. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum