• Country
• United States of America (USA)

• Manufacturer / Brand
• American Etherphone Corp.; Detroit, Michigan

• Year
• 1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 32557

• • Brand: Etherphone

• Number of Tubes
• 2

• Valves / Tubes

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

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 6 & 90 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Etherphone RX-3 - American Etherphone Corp.;

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

• Dimensions (WHD)
• 13 x 8 x 8 inch / 330 x 203 x 203 mm

• Notes

• Two dials (primary tuning control knobs)

• Net weight (2.2 lb = 1 kg)
• 10 lb (10 lb 0 oz) / 4.540 kg

• Price in first year of sale
• 45.00 $

• External source of data
• Ernst Erb

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

• Mentioned in
• November 1925, Electrical Record Supplement page 30

• Other Models

• Here you find 4 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from American Etherphone Corp.; Detroit, Michigan