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R3B early

R3B ; Magnavox Co., (ID = 1359789) Speaker-P R3B ; Magnavox Co., (ID = 1359788) Speaker-P
R3B ; Magnavox Co., (ID = 241932) Speaker-P R3B ; Magnavox Co., (ID = 1359784) Speaker-P
R3B ; Magnavox Co., (ID = 241928) Speaker-P R3B ; Magnavox Co., (ID = 241929) Speaker-P
R3B ; Magnavox Co., (ID = 241930) Speaker-P R3B ; Magnavox Co., (ID = 241931) Speaker-P
R3B ; Magnavox Co., (ID = 954648) Speaker-P R3B ; Magnavox Co., (ID = 1069350) Speaker-P
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R3B ; Magnavox Co., (ID = 1359789) Speaker-P
Magnavox Co.,: R3B [Speaker-P] ID = 1359789 847x1400
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For model R3B early, Magnavox Co., Commercial Wireless and Development Co.; San Francisco, later Fort Waye, IN
 
Country:  United States of America (USA)
Manufacturer / Brand:  Magnavox Co., Commercial Wireless and Development Co.; San Francisco, later Fort Waye, IN
Year: 1921 Category: Loudspeaker, headphone or earphone
Wave bands - without
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 $
Collectors' prices  
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 919 models, 467 with images and 629 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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