• Year
  • 1936–1940
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 14867

 Technical Specifications

  • Number of Tubes
  • 1
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Helios 681W - Grassmann, Peter, RFW, Radio-
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 410 x 530 x 270 mm / 16.1 x 20.9 x 10.6 inch
  • Notes
  • Widerstand der Erregerspule: 5000 Ohm; Maximalbelastbarkeit: 10 W.
  • Net weight (2.2 lb = 1 kg)
  • 9.5 kg / 20 lb 14.8 oz (20.925 lb)
  • Price in first year of sale
  • 130.00 RM
  • External source of data
  • E. Erb 3-907007-36-0
  • Circuit diagram reference
  • Röhren in FS-Bestückungstabellen

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