Detector and Two Step Amplifier

Se-Ar-De (brand); Boston

  • Year
  • 1923
  • Category
  • Radio module pre 1926 (not a part, not a key)
  • Radiomuseum.org ID
  • 182947
    • alternative name: Mitchell, R.; Boston

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Detector with Vacuum Tube (Valve), no tuner; 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: Detector and Two Step Amplifier - Se-Ar-De brand; Boston
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 12.5 x 7.5 x 6.5 inch / 318 x 191 x 165 mm
  • Notes
  • The SE-AR-DE Detector and Two Step Amplifier are designed to be used any type of tuning unit. This unit sold for $40 assembled without a cabinet in 1923. Knock down price $33.-; Cabinet in mahogany or American walnut (not included in price).
  • Net weight (2.2 lb = 1 kg)
  • 8 lb (8 lb 0 oz) / 3.632 kg
  • Price in first year of sale
  • 40.00 $
  • Source of data
  • - - Manufacturers Literature
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

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