R3B early
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Magnavox Co.,: R3B [Speaker-P] ID = 1359789 847x1400
Select picture or schematic to display from thumbnails on the right and click for download.
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| Year: 1921 | Category: Loudspeaker, headphone or earphone |
| Wave bands | - without |
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| Details | |
| Power type and voltage | Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt |
| Loudspeaker | Horn / Ø 14 inch = 35.6 cm |
| Power out | |
| from Radiomuseum.org | Model: R3B [early] - Magnavox Co., Commercial |
| Material | Metal case |
| Shape | Tablemodel, with any shape - general. |
| Dimensions (WHD) | 14 x 26 x 0 inch / 356 x 660 x 0 mm |
| Notes | straight neck electrodynamic Horn Speaker. Field coil 7 ohms, current ca.1 Amp.; smooth painted horn. |
| Net weight (2.2 lb = 1 kg) | 6 kg / 13 lb 3.5 oz (13.216 lb) |
| Price in first year of sale | 45.00 $ |
| Mentioned in | Le Guide du Collectionneur TSF Biraud/Foster, Vol. II (Radio Horn Speaker Encyclopedia - Floyd A.Paul) |
| Literature/Schematics (2) | Radio Broadcast, May 1922, p. 75 |
Model page created by Jean-Luc Comblin. See "Data change" for further contributors.
All listed radios etc. from Magnavox Co., Commercial Wireless and Development Co.; San Francisco, later Fort Waye, IN
Here you find 994 models, 488 with images and 700 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
