• Country
• United States of America (USA)

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

• Year
• 1921

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 213288

• • alternative name: Chicago Radio Lab

• Number of Tubes
• 1

• Valves / Tubes
• UV200

• Main principle
• TRF with regeneration

• Wave bands
• Wave Bands given in the notes.

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Z-Nith Jewelers Time Receiver Type TR - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes
• The Jewelers Time Receiver TR is featured in the "Z-Nith" catalog "Long Distance Radio Apparatus", Chicago Radio Laboratory, Bulletin F-21 on page 19 with a price of $ 69.50.
  The Z-Nith Jewelers Time Receiver was calibrated for the wavelengths of the two Navy time signal stations.

• Price in first year of sale
• 69.50 $

• Literature/Schematics (4)
• 1921 "Z-Nith" catalog "Long Distance Radio Apparatus" Chicago Radio Lab Bulletin F-21 on page 19

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 4505 models, 4101 with images and 3631 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL