Ultraudion, Siren and One-Step Amplifier

DeForest Radio Telephone & Telegraph Co. (De Forest); New York

Data
Forum
Pictures
Collections

  • Year
  • 1914
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 334226
    • alternative name: Lee De Forest Mfg.

 Technical Specifications

  • Number of Tubes
  • 1
  • 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.

 Collections | Museums | Literature

Collections

The model Ultraudion, Siren and One-Step Amplifier is part of the collections of the following members.

 Forum