Detector Unit 211 knock down
Se-Ar-De (brand); Boston
- Country
- United States of America (USA)
- Manufacturer / Brand
- Se-Ar-De (brand); Boston
- Year
- 1923
- Category
- Radio module pre 1926 (not a part, not a key)
- Radiomuseum.org ID
- 215647
-
- alternative name: Mitchell, R.; Boston
aus "Radio" for August 1923, p.47
- Number of Tubes
- 1
- Valves / Tubes
- UV200
- Main principle
- Detector with Vacuum Tube (Valve), no tuner
- Wave bands
- - without
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - For headphones or amp.
- Material
- Various materials
- from Radiomuseum.org
- Model: Detector Unit 211 [knock down] - Se-Ar-De brand; Boston
- Shape
- Chassis only or for «building in»
- Notes
- low resistance rheostat. There is also model 206 with 30 Ohm rheostat.
- Price in first year of sale
- 2.40 $
- Author
- Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.
- Other Models
-
Here you find 16 models, 16 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Se-Ar-De (brand); Boston