• Country
• United States of America (USA)

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

• Year
• 1965

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 74027

• • alternative name: Chicago Radio Lab

• Number of Transistors
• 8

• Semiconductors

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 4 x 1,5 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Royal 280-G Pocket Radio Ch=8MT40Z2 - Zenith Radio Corp.; Chicago,

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 91 x 148 x 41 mm / 3.6 x 5.8 x 1.6 inch

• Notes
• Zenith Royal 280 portable radio with leather case, strap, foldable metal stand in the back, gross weight incl full original packing 1.1 kg.g., colors available: black, white/tan, brown/white;

• Net weight (2.2 lb = 1 kg)
• 0.6 kg / 1 lb 5.1 oz (1.322 lb)

• Price in first year of sale
• 25.00 $

• Mentioned in
• Zenith Transistor Radios

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 4491 models, 4096 with images and 3595 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL