• Country
• United States of America (USA)

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

• Year
• 1962

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 73993

• • alternative name: Chicago Radio Lab

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• 6

• Semiconductors
• 121-179 121-180 121-181 121-64 121-61 121-61

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

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.75 inch = 7 cm

• Power out
• 0.18 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Royal 150 Ch= 6GT42Z2 - Zenith Radio Corp.; Chicago,

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

• Dimensions (WHD)
• 78 x 130 x 45 mm / 3.1 x 5.1 x 1.8 inch

• Notes

• upgraded Royal 100; available in: charcoal, white, beige, green. Sams photofact, set 577, folder 19, date 5-62, features the Zenith model Royal 150 with addition C, F, L and W. The difference is the color.

  Civil Defense marks on station dial. Easel style back stand (radio will not readily stand upright without the back stand extended).

• Price in first year of sale
• 35.00 $

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 22, 1962

• Mentioned in
• Zenith Transistor Radios

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 577 folder 19 date 5-62)

• Literature/Schematics (2)
• Photofact TSM Transistor Radio Series SAMS (TSM-19 (January, 1963))

• Literature/Schematics (3)
• Collector's Guide To TrR1 Bunis trans.94 (Model info on page 312)

• 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