• Year
  • 1920
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 193856
    • alternative name: Lee De Forest Mfg.

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 1
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown)
  • Tuned circuits
  • 1 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: UtilityTime Receiver RS-200 - DeForest Radio Telephone &
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 9 x 9.125 x 7.75 inch / 229 x 232 x 197 mm
  • Notes
  • The De Forest Utility Time Receiver was designed to operate on wavelengths from 100-25,000 meters. This receiver was an improvement of the Jewelers' Time Receiver in a slightly larger cabinet. it could receive government time signals from NAA Arlington, VA, on 2655 meters / 112.9 kHz, at 02:55 GMT, or on 2400 meters / 124.9 kHz at 16:55 GMT, or at the same times from NSS Annapolis on 16,900 meters / 17.74 kHz, or NAR Key West on 1463 meters / 205.0 kHz.
  • Net weight (2.2 lb = 1 kg)
  • 15 lb (15 lb 0 oz) / 6.810 kg
  • Price in first year of sale
  • 45.00 $
  • Source of data
  • -- Original prospect or advert
  • Literature/Schematics (1)
  • De Forest Catalog "D" page 27
  • Author
  • Model page created by Alan Larsen. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum