• Country
• United States of America (USA)

• Manufacturer / Brand
• Lytton Inc., Walter; Chicago, IL

• Year
• 1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 46253

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• Special principle (see notes); Reflex

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries

• Loudspeaker
• - This model requires external speaker(s).

• from Radiomuseum.org
• Model: Portable Lytton Duplex - Lytton Inc., Walter; Chicago,

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

• Notes

• One dial (primary tuning control knob)

  Duplex crystal crystal detector. 

• Price in first year of sale
• 25.00 $

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Mentioned in
• November 1925, Radio News magazine page 666

• Other Models

• Here you find 19 models, 10 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Lytton Inc., Walter; Chicago, IL