• Country
• United States of America (USA)

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

• Year
• 1952

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 68208

• • alternative name: Chicago Radio Lab

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1U4 1S5 3V4

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type)

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 4H40 Ch=4H40 - Zenith Radio Corp.; Chicago,

• Shape
• Portable set > 8 inch (also usable without mains)

• 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

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Other Models

• Here you find 4494 models, 4099 with images and 3605 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL