Donotone
Donotone, London
- País
- Gran Bretaña (GB)
- Fabricante / Marca
- Donotone, London
- Año
- 1926
- Categoría
- Altavoz, cascos o auricular
- Radiomuseum.org ID
- 104505
- Gama de ondas
- - no hay
- Tensión de funcionamiento
- No necesita alimentación
- Altavoz
- Altavoz magnético (sin saber mas) / Ø 26 cm = 10.2 inch
- Material
- Madera
- de Radiomuseum.org
- Modelo: Donotone - Donotone, London
- Forma
- Formas varias descritas en notas aparte.
- Anotaciones
-
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.
- Peso neto
- 4.7 kg / 10 lb 5.6 oz (10.352 lb)
- Mencionado en
- Radio! Radio! (fig.860)
- Otros modelos
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Colecciones
El modelo Donotone es parte de las colecciones de los siguientes miembros.