L500W; Telefunken (ID = 2366794) Speaker-P L500W; Telefunken (ID = 2366795) Speaker-P
L500W; Telefunken (ID = 2366796) Speaker-P L500W; Telefunken (ID = 2366797) Speaker-P
L500W; Telefunken (ID = 2366798) Speaker-P L500W; Telefunken (ID = 784146) Speaker-P
L500W; Telefunken (ID = 1347100) Speaker-P
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L500W; Telefunken (ID = 2366794) Speaker-P
Telefunken: L500W [Speaker-P] ID = 2366794 1400x1050
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For model L500W, Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH:
Bild aus (längst vergangener) ebay-Auktion.
Country:  Germany
Manufacturer / Brand:  Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Year: 1929/1930 Category: Loudspeaker, headphone or earphone
Valves / Tubes 1: RGN1054
Wave bands - without
Power type and voltage Alternating Current supply (AC)
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Model: L500W - Telefunken Deutschland TFK,
Dimensions (WHD) 580 x 550 x 300 mm / 22.8 x 21.7 x 11.8 inch
Notes Edyn LS mit Netzanschluss zur Felderregung
Price in first year of sale 270.00 RM
Source of data Arlt's grosser Radiokatalog 1930 / Radiokatalog Band 1, Ernst Erb

All listed radios etc. from Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Here you find 3471 models, 3040 with images and 2008 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.