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4-Lampen-Apparat EV4

4-Lampen-Apparat EV4; Zellweger AG; Uster (ID = 1907674) Radio 4-Lampen-Apparat EV4; Zellweger AG; Uster (ID = 1907675) Radio
4-Lampen-Apparat EV4; Zellweger AG; Uster (ID = 295723) Radio  
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4-Lampen-Apparat EV4; Zellweger AG; Uster (ID = 1907674) Radio
Zellweger AG; Uster: 4-Lampen-Apparat EV4 [Radio] ID = 1907674 1400x875
Select picture or schematic to display from thumbnails on the right and click for download.
For model 4-Lampen-Apparat EV4, Zellweger AG; Uster:
Auction picture courtesy of Team Breker.
Country:  Switzerland
Manufacturer / Brand:  Zellweger AG; Uster
Year: 1924/1925 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: DER DER DE6 DE6
Main principle TRF (Tuned-Radio-Frequency but use of regeneration unknown); 1 Special; 2 AF stage(s)
Tuned circuits 2 AM circuit(s)
Wave bands Broadcast (MW) and Long Wave.
Power type and voltage Storage and/or dry batteries
Loudspeaker - For headphones or amp.
Power out
from Model: 4-Lampen-Apparat EV4 - Zellweger AG; Uster
Material Wooden case
Shape Tablemodel, slant panel.
Notes Empfänger EV4 von Zellweger 4-Lampen-Apparat genannt, Empfang 200-3000m, aufgeführt als Variante 9 im 20seitigen Büchlein "Allgemeines über unsere Radio-Empfangsapparate und einige Zusammenstellungen kompletter Empfangsanlagen" von Zellweger etwa um 1926, Geh=EV5 (auch Globus verkaufte)
Price in first year of sale 550.00 SFr !
External source of data E. Erb 3-907007-36-0
Source of data Radiokatalog Band 2, Ernst Erb
Mentioned in -- Original prospect or advert (2512)

All listed radios etc. from Zellweger AG; Uster
Here you find 78 models, 56 with images and 23 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.