Improved Shielded Six AC Model 630

Silver - Marshall; Chicago, IL

  • Year
  • 1927
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 57970

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Valves / Tubes
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Improved Shielded Six AC Model 630 - Silver - Marshall; Chicago, IL
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes
  • One dial (primary tuning control knob)
  • Price in first year of sale
  • 95.00 $
  • External source of data
  • Ernst Erb
  • Literature/Schematics (1)
  • Radio Broadcast, Sep. 1927, p. 309

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