Majestic Ch= 90-B (chassis only)

Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)

Data
Forum
Pictures
Collections

  • Year
  • 1929/1930
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 43694

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

 Technical Specifications

  • Number of Tubes
  • 8
  • Main principle
  • TRF without regeneration; 1 AF stage(s); Neutrodyne
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / Adjustment plate for 105, 115 and 125 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Majestic Ch= 90-B - Grigsby-Grunow -Hinds Co.
  • Shape
  • Chassis only or for «building in»
  • Notes
  • The 90-B is only the chassis employed for the console models 90, 91, 92, and 93. Since the manufacturer had applied stickers with the chassis type inside the cabinets, it is often assumed this is to be the Model name. This is not correct: it is a model family, using that chassis.
    Please no pictures of cabinets here. They belong to the relevant models.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

 Collections | Museums | Literature

 Forum