• Country
• United States of America (USA)

• Manufacturer / Brand
• Gamble-Skogmo, Inc.; Minneapolis, MN

• Year
• 1961 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 86764

• • Brand: Coronado

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

• Number of Transistors
• 8

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 6 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Coronado RA50-9908A - Gamble-Skogmo, Inc.;

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

• Notes
• SAMS Photofact, date 2-63, set 621, folder 9 features the Gamble-Skogmo models RA50-9908A and RA50-9909A as the same schematic. The difference is only the colour.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 22, 1962

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS ((Set 621 folder 9 date 2-63 title))

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 705 models, 331 with images and 635 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Gamble-Skogmo, Inc.; Minneapolis, MN