728B; Western Electric (ID = 1842677) Speaker-P 728B; Western Electric (ID = 1842678) Speaker-P
728B; Western Electric (ID = 1842679) Speaker-P 728B; Western Electric (ID = 1842681) Speaker-P
728B; Western Electric (ID = 1792272) Speaker-P 728B; Western Electric (ID = 1792273) Speaker-P
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728B; Western Electric (ID = 1842677) Speaker-P
Western Electric: 728B [Speaker-P] ID = 1842677 880x768
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For model 728B, Western Electric Company Inc.; New York (NY):
aus ebay, #381288106000, mit Erlaubnis des Verkäufers jrcradio
Country:  United States of America (USA)
Manufacturer / Brand:  Western Electric Company Inc.; New York (NY)
Year: 1948 ? Category: Loudspeaker, headphone or earphone
Wave bands - without
Power type and voltage No Power needed
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 12.344 inch = 31.4 cm
Power out
from Model: 728B - Western Electric Company Inc.;
Material Various materials
Dimensions (WHD) 12.344 x 12.344 x 3.78125 inch / 314 x 314 x 96 mm

Western Electric direct radiator Model 728B.
Frequency Range 60 - 10000Hz, 30 Watts
Coverage angle 50 degrees
Requires 3 cubic feet of enclosure space.

Mentioned in Audio Engineering October 1948 - Page 12

Model page created by Franz Scharner. See "Data change" for further contributors.

All listed radios etc. from Western Electric Company Inc.; New York (NY)
Here you find 153 models, 128 with images and 28 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.