• Country
• United States of America (USA)

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

• Year
• 1936 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 41312

• • Brand: Coronado

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

• Number of Tubes
• 5

• Valves / Tubes
• 1A6 34 30 32 33

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

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 90 & 2 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) generic. / Ø 6.5 inch = 16.5 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: Coronado 550 - Gamble-Skogmo, Inc.;

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Dimensions (WHD)
• 14.8 x 17 x 11 inch / 376 x 432 x 279 mm

• Notes

• Error in Stein, "Machine Age to Jet Age: the "Gamble-Skogmo "Coronado 550" is shown as a "Coronado 351".

• External source of data
• Ernst Erb

• Literature/Schematics (1)
• Rider's Perpetual, Volume 6 = 1935 and before (6-11)

• Literature/Schematics (2)
• Rider's Perpetual, Volume 7 = 1936 and before (7-53)

• Literature/Schematics (3)
• Table Top Radios Vol. 1 Stein 98 (page 51. (Stein, Table Top Radios Volume 1 calls it Coronado 351. That is not correct.))

• 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