130 "Mighty Gem" Camera Style Radio

• Country
• United States of America (USA)

• Manufacturer / Brand
• Majestic Radio & Television Co.,(post 1932)

• Year
• 1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 46500

• Picture
• Schematics

Previous Next

Previous Next

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

• Number of Tubes
• 3

• Valves / Tubes
• 1A7GT 1N5GT 1D8GT

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 1.5 & 60 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: 130 "Mighty Gem" Camera Style Radio - Majestic Radio & Television Co

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 140 x 180 x 100 mm / 5.5 x 7.1 x 3.9 inch

• Notes
• Uses 60 Volt +B. (the 130U has a 45 V battery). Built in loop antenna. The 130 was marketed for a while in the UK...rebadged as MIGHTY GEM

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Circuit diagram reference
• Rider's Perpetual, Volume 11 = ca. 1940 and before

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Literature/Schematics (1)
• Michael Brian Schiffer: The Portable Radio in American Life Riders 11-13

• Other Models

• Here you find 410 models, 172 with images and 350 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Majestic Radio & Television Co.,(post 1932)