• Country
• United States of America (USA)

• Manufacturer / Brand
• Radio Service & Mfg. Co.; New York City, New York

• Year
• 1922/1923

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

• Radiomuseum.org ID
• 52669

• Main principle
• Crystal or Solid State Detector

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Little Wonder - Radio Service & Mfg. Co.; New

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

• Notes
• Radio Service & Mfg. Co. "Little Wonder" complete receiving set, includes 2000 ohm headsets and complete aerial for $15.00.

• Price in first year of sale
• 15.00 $

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

• Literature/Schematics (4)
• December 1922 Radio News advertisement. page 1148

• Author
• Model page created by Peter Rutishauser. See "Data change" for further contributors.

• Other Models

• Here you find 6 models, 6 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio Service & Mfg. Co.; New York City, New York