Ultraudion, Siren and One-Step Amplifier
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
- 1914
- Category
- Service- or Lab Equipment
- Radiomuseum.org ID
- 334226
-
- alternative name: Lee De Forest Mfg.
- Number of Tubes
- 1
- Valves / Tubes
- Audion_dbw
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - This model requires external speaker(s).
- Material
- Wooden case
- from Radiomuseum.org
- Model: Ultraudion, Siren and One-Step Amplifier - DeForest Radio Telephone &
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Dimensions (WHD)
- 9 x 13.25 x 22.5 inch / 229 x 337 x 572 mm
- Notes
-
Radio Telephone & Telegraph Company Deforest Ultraudion, Siren and One-Step Audiophone Amplifier.
This device produces undamped alternating currents from 50 cycle to 1 megacycle. It can also be used as a One-Step Audio Amplifier or a simple electric siren.
- Price in first year of sale
- 185.00 $
- Mentioned in
- - - Manufacturers Literature (Circa 1914 Radio Telephone & Telegraph Co. Bulletin C14)
- Author
- Model page created by Alan Larsen. 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
Collections
The model Ultraudion, Siren and One-Step Amplifier is part of the collections of the following members.