4-Lampen-Apparat EV4
Zellweger AG; Uster
- Country
 - Switzerland
 
- Manufacturer / Brand
 - Zellweger AG; Uster
 
- Year
 - 1924/1925
 
- Category
 - Broadcast Receiver - or past WW2 Tuner
 
- Radiomuseum.org ID
 - 13809
 
- Number of Tubes
 - 4
 
- 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.
 
- Material
 - Wooden case
 
- from Radiomuseum.org
 - Model: 4-Lampen-Apparat EV4 - Zellweger AG; Uster
 
- 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)
 
- Other Models
 - 
        
Here you find 80 models, 59 with images and 25 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Zellweger AG; Uster