• Country
• United States of America (USA)

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

• Year
• 1947/1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 19048

• • 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 3Q4

• Number of Transistors

• Semiconductors
• Selenium-Rectifier

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / AC/DC 110-120 / D: 1 x 1.5 & 67.5 Volt

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

• Material
• Bakelite or Plastics (type unknown)

• from Radiomuseum.org
• Model: 4G800, 4G800W, 4G800Y Zenette Ch= 4E41 - Zenith Radio Corp.; Chicago,

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

• Dimensions (WHD)
• 200 x 130 x 100 mm / 7.9 x 5.1 x 3.9 inch

• Notes

• Employs a 3Q4 output tube, while the later 4G800Z/Z1 used a 3V4, which is not pin compatible.

  The 67.5V battery is an Eveready 467.

  Came in three cabinet colors: 4G800 (maroon), 4G800W (ivory), and 4G800Y (black).

• Net weight (2.2 lb = 1 kg)
• 2.4 kg / 5 lb 4.6 oz (5.286 lb)

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Collector's Guide to Antique Radios (6th edition)

• Circuit diagram reference
• Die «Thali Schemasammlung» führt das Modell.

• Mentioned in
• Photofact Folder, Howard W. SAMS (Set 35, Folder 27)

• Literature/Schematics (1)
• Rider's Perpetual, Volume 17 = covering 1947

• Literature/Schematics (2)
• Table Top Radios Vol. 1 Stein 98 (page 175.)

• Literature/Schematics (3)
• Machine Age to Jet Age II (page 329.)

• 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