• Country
• United States of America (USA)

• Manufacturer / Brand
• Haller, W. B.; Pittsburgh, Pennsylvania (Hallerio)

• Year
• 1925

• Category
• Detector-Radio (Crystal or diode, without tubes/transistors)

• Radiomuseum.org ID
• 43818

• • Brand: Hallerio

• Main principle
• Crystal or Solid State Detector

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: Hallerio 3 - Haller, W. B.; Pittsburgh,

• Notes
• One dial (primary tuning control knob)

• External source of data
• Ernst Erb

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

• Other Models

• Here you find 13 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Haller, W. B.; Pittsburgh, Pennsylvania (Hallerio)