Loose Coupler Receiving Transformer No. A7721
Duck Co., J.J. and William B.; Toledo, OH
- Country
- United States of America (USA)
- Manufacturer / Brand
- Duck Co., J.J. and William B.; Toledo, OH
- Year
- 1914–1921
- Category
- Radio module pre 1926 (not a part, not a key)
- Radiomuseum.org ID
- 119847
Duck Catalog No.16
- Main principle
- Tuner pre 1926 (not a wave trap)
- Wave bands
- Broadcast (MW) and Long Wave.
- Power type and voltage
- No Power needed
- Loudspeaker
- - - No sound reproduction output.
- Material
- Wooden case
- from Radiomuseum.org
- Model: Loose Coupler Receiving Transformer No. A7721 - Duck Co., J.J. and William B.;
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 15 x 5 x 5 inch / 381 x 127 x 127 mm
- Notes
-
Duck A7721 Loose Coupler Receiving Transformer will tune down to 1800 meters with a good aerial and without a loading coil.
- Net weight (2.2 lb = 1 kg)
- 4 lb (4 lb 0 oz) / 1.816 kg
- Price in first year of sale
- 8.00 $
- Source of data
- -- Collector info (Sammler)
- Literature/Schematics (1)
- 1921`William Duck Catalog No. 16 page 121
- Literature/Schematics (2)
- 1914 JJ Duck Catalog No. 8 page 38
- Author
- Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.
- Other Models
-
Here you find 57 models, 34 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Duck Co., J.J. and William B.; Toledo, OH
Collections
The model Loose Coupler Receiving Transformer is part of the collections of the following members.