Donotone

Donotone, London

  • Année
  • 1926
  • Catégorie
  • Haut-parleur, casque ou écouteur
  • Radiomuseum.org ID
  • 104505

 Spécifications techniques

  • Gammes d'ondes
  • - sans
  • Tension / type courant
  • Pas d'alimentation nécessaire
  • Haut-parleur
  • HP magnétique (sans details) / Ø 26 cm = 10.2 inch
  • Matière
  • Boitier en bois
  • De Radiomuseum.org
  • Modèle: Donotone - Donotone, London
  • Forme
  • Formes diverses décrites en notes
  • Remarques
  • A highly unusual and eccentric loud-speaker in which a moving-iron unit drove a free-edge cone of varnished silk reinforced with cane ribs. Mounted co-axially behind the main cone was a series of smaller cones and in front, around the mouth of the sound chamber, was a series of metal baffles. Between each pair of baffles was fitted a spiral spring, free at one end, which was supposed to vibrate in sympathy with the reproduced sound. Mahogany case. 12 in. diameter, 11 in. deep. Baseboard 18 in.x12,5 in. (Also came mounted on an adjustable stand). (Radio!Radio Jonathan-Hill).

    Gemessener Anschlußwiderstand 1610 Ohm.

  • Poids net
  • 4.7 kg / 10 lb 5.6 oz (10.352 lb)

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Le modèle Donotone fait partie des collections des membres suivants.

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