• Country
• United States of America (USA)

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

• Year
• 1956

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 83139

• • 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 1U5 3V4

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / 117 / 7.5 & 90 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Z402R Ch= 4Z40 - Zenith Radio Corp.; Chicago,

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

• Dimensions (WHD)
• 11.125 x 8.75 x 3 inch / 283 x 222 x 76 mm

• Notes

• Identical to Zenith Z402F and Z402Y except for cabinet color.

• Net weight (2.2 lb = 1 kg)
• 5.75 lb (5 lb 12 oz) / 2.611 kg

• Price in first year of sale
• 34.95 USD

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 17, 1957

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 343, Folder 17, January 1957)

• Author
• Model page created by Klaus Ortwein. See "Data change" for further contributors.

• Other Models

• Here you find 4517 models, 4109 with images and 3652 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL