• Country
• United States of America (USA)

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

• Year
• 1937 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 41342

• • Brand: Coronado

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

• Number of Tubes
• 6

• Valves / Tubes
• 1C6 1A4 30 1A4 950 950

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries

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

• from Radiomuseum.org
• Model: 650A - Gamble-Skogmo, Inc.;

• Dimensions (WHD)
• 18 x 10.5 x 10.75 inch / 457 x 267 x 273 mm

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 8 = 1937 and before

• Other Models

• Here you find 701 models, 327 with images and 631 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Gamble-Skogmo, Inc.; Minneapolis, MN