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R3B Late

R3B ; Magnavox Co., (ID = 243297) Speaker-P R3B ; Magnavox Co., (ID = 243298) Speaker-P
R3B ; Magnavox Co., (ID = 243299) Speaker-P R3B ; Magnavox Co., (ID = 243300) Speaker-P
R3B ; Magnavox Co., (ID = 1222658) Speaker-P R3B ; Magnavox Co., (ID = 1222659) Speaker-P
R3B ; Magnavox Co., (ID = 1222660) Speaker-P R3B ; Magnavox Co., (ID = 1222661) Speaker-P
R3B ; Magnavox Co., (ID = 1222662) Speaker-P R3B ; Magnavox Co., (ID = 1222663) Speaker-P
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R3B ; Magnavox Co., (ID = 243297) Speaker-P
Magnavox Co.,: R3B [Speaker-P] ID = 243297 421x666
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For model R3B Late, 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: 1922 Category: Loudspeaker, headphone or earphone
Wave bands - without
Power type and voltage Storage Battery for all (e.g. for car radios and amateur radios) / 5 Volt
Loudspeaker Horn / Ø 14 inch = 35.6 cm
Power out
from Model: R3B [Late] - Magnavox Co., Commercial
Material Metal case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 14 x 28 x 0 inch / 356 x 711 x 0 mm
Notes Curved neck electrodynamic Horn Speaker. Field coil 5 ohms, current ca.1 Amp.; Ind coil 680 Ohms. Crystalline finish.
Net weight (2.2 lb = 1 kg) 6 kg / 13 lb 3.5 oz (13.216 lb)
Mentioned in Le Guide du Collectionneur TSF Biraud/Foster, Vol. II (Radio Horn Speaker Encyclopedia - Floyd A.Paul)

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 985 models, 486 with images and 687 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.


Forum contributions about this model
Magnavox Co.,: R3B
Threads: 1 | Posts: 4
Hits: 708     Replies: 3
magnavox: Magnavox R3B Horn instructions on base required
Lindsay Shepherd

I have a working Magnavox R3B Horn speaker which is missing the Instructions on the base.

If anyone is able to supply me with a scan or photo of the instructions sheet on the base, I would greatly appreciate it.

kind regards

Lindsay Shepherd

Reiner Scholz

Hi, Lindsay

I owned this speaker long ago and maybe there had been an instruction underneath. I do not remember. Actually I just found a common companies address and a listing of patent numbers.

I keep on sarching




EM: Dead link deleted. Please avoid ever external links

Lindsay Shepherd



Thank you for your help. I did see that R3B base label for sale on Ebay.

It is different from another R3B's base label sold on Ebay in 2015.

So I am perplexed as to which may be the original.

kind regards

Lindsay Shepherd



Stuart Schankman

I have a Magnavox Type R3 Model B with a base lable, but the lable does not contain instructions.  I only lists patents.  I am looking for the audio transformer for that model.

Magnavox Co.,: R3B
End of forum contributions about this model