Donotone
Donotone, London
- Country
- Great Britain (UK)
- Manufacturer / Brand
- Donotone, London
- Year
- 1926
- Category
- Loudspeaker, headphone or earphone
- Radiomuseum.org ID
- 104505
Stoffbespannung und Füße fehlen
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- Magnetic loudspeaker (reed) generic. / Ø 26 cm = 10.2 inch
- Material
- Wooden case
- from Radiomuseum.org
- Model: Donotone - Donotone, London
- Shape
- Miscellaneous shapes - described under notes.
- Notes
-
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.
- Net weight (2.2 lb = 1 kg)
- 4.7 kg / 10 lb 5.6 oz (10.352 lb)
- Mentioned in
- Radio! Radio! (fig.860)
- Other Models
-
Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Donotone, London
Collections
The model Donotone is part of the collections of the following members.