• Country
• United States of America (USA)

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

• Year
• 1960

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 73983

• • alternative name: Chicago Radio Lab

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

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 2x1.5 Volt

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

• Power out
• 0.135 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Royal 55 The Converta Ch=6GT40Z1 6GT40Z2 - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Notes
• The Royal 50 is detachable; available only in charcoal color;

• Price in first year of sale
• 45.00 $

• 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 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