• Country
• United States of America (USA)

• Manufacturer / Brand
• Zenith Radio Corp.; Chicago, IL

• Year
• 1942

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 68337

• • alternative name: Chicago Radio Lab

• Number of Tubes
• 6

• Valves / Tubes
• 7G7 7C7 7A6 7B4 6V6G 5Y4G

• Main principle
• Special principle (see notes)

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 10 inch = 25.4 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: S9005 Phantom Ch=6B25 - Zenith Radio Corp.; Chicago,

• Shape
• Console with any shape - in general

• Notes
• Remote speaker unit for 22H698/699; FM link at 240-260kHz; extremely rare!

• Price in first year of sale
• 125.00 $

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 13 = 1942 and before

• Other Models

• Here you find 4505 models, 4101 with images and 3631 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL