• Country
• United States of America (USA)

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

• Year
• 1939 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 41399

• • Brand: Coronado

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

• Number of Tubes
• 5

• Valves / Tubes
• 6D8G 6S7G 6T7G 6G6G 6ZY5G

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

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 110-120 & 6 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5 inch = 12.7 cm

• from Radiomuseum.org
• Model: Coronado 803, 803A - Gamble-Skogmo, Inc.;

• Dimensions (WHD)
• 17.5 x 10.5 x 8 inch / 445 x 267 x 203 mm

• Notes
• Vibrator for +B(for battery supply).

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 10 = 1939 and before

• Other Models

• Here you find 699 models, 325 with images and 629 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Gamble-Skogmo, Inc.; Minneapolis, MN