• Country
• United States of America (USA)

• Manufacturer / Brand
• Armac Radio Co.; Chicago, Illinois

• Year
• 1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 32870

• Number of Tubes
• 4

• Valves / Tubes

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries

• Material
• Wooden case

• from Radiomuseum.org
• Model: Echophone 4 - Armac Radio Co.; Chicago,

• Shape
• Tablemodel, with any shape - general.

• Notes

• Armac was distributor, not manufacturer! That was The Radio Shop.

• Price in first year of sale
• 75.00 $

• External source of data
• Ernst Erb

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

• Other Models

• Here you find 3 models, 3 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Armac Radio Co.; Chicago, Illinois