R-J Tuner Loose Coupler
DeForest Radio Telephone & Telegraph Co. (De Forest); New York
- Country
- United States of America (USA)
- Manufacturer / Brand
- DeForest Radio Telephone & Telegraph Co. (De Forest); New York
- Year
- 1909
- Category
- Radio module pre 1926 (not a part, not a key)
- Radiomuseum.org ID
- 205264
-
- alternative name: Lee De Forest Mfg.
by courtesy of Alan Douglas
- Main principle
- Tuner pre 1926 (not a wave trap)
- Wave bands
- Broadcast and LongWave in ONE range.
- Power type and voltage
- No Power needed
- Loudspeaker
- - - No sound reproduction output.
- Material
- Wooden case
- from Radiomuseum.org
- Model: R-J Tuner Loose Coupler - DeForest Radio Telephone &
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Notes
-
First version of the R-J (Radio Junior) Tuner.
Basically a boxed loose coupler with rods to adjust the coils.
- Mentioned in
- ad in Modern Electrics, Mar.1909, p.450
- Literature/Schematics (1)
- Radio Manufacturers of the 1920s, Vol 1 (p.161)
- Author
- Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.
- Other Models
-
Here you find 158 models, 132 with images and 15 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from DeForest Radio Telephone & Telegraph Co. (De Forest); New York