• Country
• United States of America (USA)

• Manufacturer / Brand
• Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)

• Year
• 1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 172961

• Number of Tubes
• 7

• Valves / Tubes
• 56S 58S 58S 58S 55S 47 80

• Main principle
• Superhet with RF-stage; ZF/IF 175 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 105-250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Majestic 310-A Single Speaker [Universal ] - Grigsby-Grunow -Hinds Co.

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Dimensions (WHD)
• 370 x 435 x 265 mm / 14.6 x 17.1 x 10.4 inch

• Notes
• The universal model differs from regular Majestic 310-A Single Speaker for having a bigger power transformer with multiple voltage selector (from 105 to 250 V). Tag on cabinet is red instead of black. On the tag is written "variable voltage", but the schematics call it "Universal".

• Author
• Model page created by Alessandro De Poi. See "Data change" for further contributors.

• Other Models

• Here you find 201 models, 122 with images and 157 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)