• Country
• United States of America (USA)

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

• Year
• 1947

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 41267

• • Brand: Coronado

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

• Number of Tubes
• 5

• Valves / Tubes
• 12SA7 12SK7 12SQ7 50L6GT 35Z5GT

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 105 - 125 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm

• Power out
• 0.8 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 43-8420 - Gamble-Skogmo, Inc.;

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 13.25 x 9.25 x 7.375 inch / 337 x 235 x 187 mm

• Notes
• The Coronado model 43-8420 is an AC-DC superheterodyne with loop antenna. It is made by Gamble-Sogmo, Inc. for the "Supplier" (Photofact) "Coronado" Minneapolis, Minn. - Los Angels, Calif.

• 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 22, covering 1951

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 9-47, set 24, folder 4714-13)

• 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