• Country
• United States of America (USA)

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

• Year
• 1932

• Category
• Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter

• Radiomuseum.org ID
• 43585

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

• Number of Tubes
• 3

• Valves / Tubes
• 24 35 80

• Main principle
• Superheterodyne (common); Screengrid 1926-1935

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Majestic 11 Short Wave Converter Ch= 10 - Grigsby-Grunow -Hinds Co.

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Notes
• Advertised February 1932. Uses one or more spray shield tubes.

• Price in first year of sale
• 38.50 $

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Circuit diagram reference
• Rider's Perpetual, Volume 3 = 1933 and before

• 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)