• Country
• United States of America (USA)

• Manufacturer / Brand
• Van Valkenburg, L. D.; Holyoke, Massachusetts

• Year
• 1925

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

• Radiomuseum.org ID
• 64638

• Main principle
• Crystal or Solid State Detector

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Various materials

• from Radiomuseum.org
• Model: Van Fixed - Van Valkenburg, L. D.; Holyoke

• Shape
• Tablemodel, with any shape - general.

• Notes
• Fixed Detector.

• Price in first year of sale
• 3.50 USD

• External source of data
• Ernst Erb

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

• Mentioned in
• Crystal Clear (Volume 1)

• Literature/Schematics (1)
• Crystal Clear Volume 2

• Literature/Schematics (4)
• January 1925 Radio News magazine advertisement on page 1337

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Van Valkenburg, L. D.; Holyoke, Massachusetts