Highlights![](https://i.etsystatic.com/46830006/r/il/221384/5445051677/il_fullxfull.5445051677_9joo.jpg)
![](https://i.etsystatic.com/46830006/r/il/6ba5a2/5445050495/il_fullxfull.5445050495_4hsj.jpg)
![](https://i.etsystatic.com/46830006/r/il/d19480/5396899300/il_fullxfull.5396899300_1sfz.jpg)
![](https://i.etsystatic.com/46830006/r/il/5fc416/5396899324/il_fullxfull.5396899324_80gh.jpg)
![](https://i.etsystatic.com/46830006/r/il/06b2fc/5445050581/il_fullxfull.5445050581_k5n2.jpg)
![](https://i.etsystatic.com/46830006/r/il/6f37c6/5396899426/il_fullxfull.5396899426_d82r.jpg)
![](https://i.etsystatic.com/46830006/r/il/4cdbb5/5396900198/il_fullxfull.5396900198_l3nt.jpg)
![](https://i.etsystatic.com/46830006/r/il/b4b9a2/5445051655/il_fullxfull.5445051655_buul.jpg)
![](https://i.etsystatic.com/46830006/r/il/14f0dc/5445051699/il_fullxfull.5445051699_b2si.jpg)
DescriptionNumber of Transistors
Semiconductors present.
Semiconductors
Main principle
Audio-Amplification
Wave bands
- without
Power type and voltage
Dry Batteries / 9 Volt
Loudspeaker
Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Material
Plastics (no bakelite or catalin)
from Radiomuseum.org
Model: Telefonverstu00e4rker Hello-Phone - m-e micro-electric; Bremen
Shape
Miscellaneous shapes - described under notes.
Dimensions (WHD)
70 x 120 x 70 mm / 2.8 x 4.7 x 2.8 inch
Author
Model page created by Ju00f6rg Holtzapfel. See "Data change" for further contributors.
Other Models
Here you find 3 models, 3 with images and 0 with schematics for wireless sets etc. In French: TSF for Tu00e9lu00e9graphie sans fil.