Two-Stage Amplifier Type DT-800

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

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  • Year
  • 1922
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 37088
    • alternative name: Lee De Forest Mfg.

 Technical Specifications

  • Number of Tubes
  • 2
  • Main principle
  • Audio-Amplification; 2 AF stage(s)
  • Wave bands
  • - without
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Two-Stage Amplifier Type DT-800 - DeForest Radio Telephone &
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 10 x 7 x 8.5 inch / 254 x 178 x 216 mm
  • Notes

  • Designed to pair up with Deforest's Radiohome DT-700 receiver, this two-stage amplifier comes in a walnut cabinet identical in size and shape to that of the DT-700, with audio inputs positioned to correspond with the audio outputs of the radiohome.

    The connection diagram on the inside of the lid details how the two components are to be connected to each other and to the battery supplies.

  • Net weight (2.2 lb = 1 kg)
  • 3.1 kg / 6 lb 13.3 oz (6.828 lb)
  • Price in first year of sale
  • 35.00 USD
  • External source of data
  • Ernst Erb

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The model Two-Stage Amplifier is part of the collections of the following members.

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