• Country
• United States of America (USA)

• Manufacturer / Brand
• Wireless Improvement Co.; New York City, New York

• Year
• 1922 ?

• Category
• Military Receiver

• Radiomuseum.org ID
• 286135

• Number of Tubes
• 2

• Valves / Tubes

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

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Storage and/or dry batteries / 4; 80; Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Short Wave Heterodyne Receiver WI-178 A - Wireless Improvement Co.; New

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

• Dimensions (WHD)
• 430 x 280 x 280 mm / 16.9 x 11 x 11 inch

• Notes

• Récepteur hétérodyne onde courtes, avec détection par lampe.

• Net weight (2.2 lb = 1 kg)
• 10.3 kg / 22 lb 11 oz (22.687 lb)

• Author
• Model page created by Musée des Radios Museum. See "Data change" for further contributors.

• Other Models

• Here you find 18 models, 15 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Wireless Improvement Co.; New York City, New York