• Country
• United States of America (USA)

• Manufacturer / Brand
• AMBU, American Bureau of Engineering; Chicago, Illinois

• Year
• 1926

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 214089

• 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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Ambu-5 - AMBU, American Bureau of

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

• Notes
• AMBU Engineering AMBU-5. This set was the first to use a type of printed circuit for wiring. This set covered the 40 to 550 meters wavelength range.

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 2 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from AMBU, American Bureau of Engineering; Chicago, Illinois