AC9-4SG 9tubes screen-grid Chassis

Midwest Radio Co., The, (Miraco); Cincinnati, OH

  • Year
  • 1929
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 47204
    • Brand: Miraco

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

 Technical Specifications

  • Number of Tubes
  • 9
  • Valves / Tubes
  • Main principle
  • TRF without regeneration; Screengrid 1926-1935
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: AC9-4SG 9tubes screen-grid Chassis - Midwest Radio Co., The, Miraco
  • Shape
  • Chassis only or for «building in»
  • Notes
  • One dial (primary tuning control knob)  
  • Price in first year of sale
  • 49.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 3 = 1933 and before

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