• Country
• United States of America (USA)

• Manufacturer / Brand
• Radio World (periodical)

• Year
• 1925

• Category
• Kit (Parts plus instruction) or building instructions only

• Radiomuseum.org ID
• 182764

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 5

• Valves / Tubes
• UX201A UX201A UX201A UX201A UX201A

• Main principle
• TRF with regeneration

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: 1926 Diamond of the Air - Radio World periodical

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

• Dimensions (WHD)
• 27 x 9 x 10 inch / 686 x 229 x 254 mm

• Notes
• Improved Audio part: 1 transformer stage and 2 resistance stages. Output DC-free. The Amp can be used separately if selected by a double-pole double-throw switch.
  It is a follow up set to the 4 tube 1925 Diamond of the Air.
  The radio was designed by Herman Bernard of Radio World Magazine. First shown in the Radio World Sept 12, 1925 magazine it is named The 1926 Diamond of the Air. In the next 4 weeks of Radio World Magazine each issue showed the construction of the set and finally included trouble shooting. It could be built from scratch from parts available in stores at the time. In the Dec 26, 1925 issue of Radio World magazine the 1926 Diamond of the Air appears as a Kit on a 2 page center layout for a price of $35 and shows all parts that were in the kit.

• Net weight (2.2 lb = 1 kg)
• 21 lb (21 lb 0 oz) / 9.534 kg

• Price in first year of sale
• 35.00 $

• Author
• Model page created by Tom Guest. See "Data change" for further contributors.

• Other Models

• Here you find 2 models, 2 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio World (periodical)