Majestic 92 Ch= 90

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

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  • Year
  • 1929/1930
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 43699

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) / 100-130 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 10 inch = 25.4 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Majestic 92 Ch= 90 - Grigsby-Grunow -Hinds Co.
  • Shape
  • Console, Highboy (legs > 50 %).
  • Notes
  • The model Majestic 92 is a console, highboy Jacobian Style, with the chassis 90. It employs Power Supply 9P3 or 9P6. For the antenna there is a local distance switch.

    The chassis 90 from Grigsby-Grunow Co. has a 5 gang variable condensator for tuning the T.R.F. balanced circuit with a single control. The selectivity control or trimmer functions by varying the inductance of the antenna input coil and permits adjusting the input circuit to exact resonance with the other tuned circuits. The detector tube feeds (via R.F. choke) directly the transformer for the push-pull output which drive the so called "Super-Dynamic Speaker" model G-3 from Grigsby-Grunow Company in Chicago. The models Majestic 91 and Majestic 92 with its different cases use the same chassis 90.
  • Price in first year of sale
  • 167.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
  • Literature/Schematics (2)
  • Radio Broadcast, Apr 1930, p. 354

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The model Majestic 92 is part of the collections of the following members.

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