• Country
• United States of America (USA)

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

• Year
• 1957

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 118426

• • 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); 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) / AC/DC: 117=110-120 or Battery pack: 7.5 & 90 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: A402Y 4A41 - Zenith Radio Corp.; Chicago,

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

• Dimensions (WHD)
• 10.5 x 0 x 0 inch / 267 x 0 x 0 mm

• Notes

• Zenith model A402Y is a three power portable AM receiver.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 18, 1958

• Mentioned in
• - - Manufacturers Literature

• Literature/Schematics (1)
• The Portable Radio in American Life

• Literature/Schematics (2)
• Photofact Folder, Howard W. SAMS (Set 385 Folder 12 dated 1-58)

• Author
• Model page created by Hans Amberger. See "Data change" for further contributors.

• 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