• 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
• 68180

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1U4 1S5 3V4

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / (1.5; 67.5); AC/DC 117 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3.5 inch = 8.9 cm

• from Radiomuseum.org
• Model: G402 Ch= 4G41 - Zenith Radio Corp.; Chicago,

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

• Notes
• walnut color; see also model 4G41Y black, 4G41W ivory, and 4G41G green(?); Selenium Rectifier.

• Price in first year of sale
• 295.00 CHF

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 22, covering 1951

• Other Models

• Here you find 4496 models, 4101 with images and 3615 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL