• Country
• United States of America (USA)

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

• Year
• 1949/1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 41148

• • Brand: Coronado

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

• Number of Tubes
• 8

• Valves / Tubes
• 6BE6 12AT7 6BA6 6BA6 6AL5 6AV6 6V6GT 6X5GT

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)     8 FM circuit(s)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Details
• Changer (Record changer)

• Power type and voltage
• Alternating Current supply (AC) / 117 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• Power out
• 0.8 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Coronado 05RA1-43-7755B - Gamble-Skogmo, Inc.;

• Shape
• Console, Lowboy (legs < 50 %).

• Notes
• The Coronado model 05RA1-43-7755A and 05RA1-43-7755B by Gamble-Skogmo Inc., 15 N. 8th St., Minneapolis are AC operated combination phono-radio,AM-FM Superheterodyne receivers with loop antenna.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 21, Copyright 1950

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 7-50, set 101, folder 2)

• 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