Green Diamond Ch= SG-B

Howard Radio Company; Chicago (IL)

  • Year
  • 1930
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 44747

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown); 1 AF stage(s)
  • Tuned circuits
  • 3 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • from Radiomuseum.org
  • Model: Green Diamond Ch= SG-B - Howard Radio Company; Chicago
  • Shape
  • Tablemodel without push buttons, Mantel/Midget/Compact up to 14
  • Notes
  • Tube type 57 in AF amplifier ? Schematic shows tube type 45.
  • Price in first year of sale
  • 69.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)

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