• Country
• United States of America (USA)

• Manufacturer / Brand
• Gearhart-Schlueter Radio Corp.; Fresno, CA

• Year
• 1926 ?

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

• Radiomuseum.org ID
• 350506

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

• Number of Tubes
• 6

• Valves / Tubes
• 201A 201A 201A 201A 201A 201A

• Main principle
• TRF without regeneration

• 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: Quadraformer - Gearhart-Schlueter Radio Corp.

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 24 x 8 x 12 inch / 610 x 203 x 305 mm

• Notes

• High-powered Non-Regenerative Set.  Sold by Gearhart-Schlueter as a Kit in 1926. The Kit included one Quadraformer Antenna coupler, one Gearhart-Schluter First-stage Amplifier, one Gearhart-Schlueter second stage ampliter, three Precise Syncrodensers included one ganged, one headphone jack, one loudspeaker jack (high impedance speaker), and more items.  

• Net weight (2.2 lb = 1 kg)
• 22 lb 14 oz (22.875 lb) / 10.385 kg

• Price in first year of sale
• 36.75 USD

• Mentioned in
• Radio Engineering (May 1926, page 191)

• Author
• Model page created by Andrew Hulsey. See "Data change" for further contributors.

• Other Models

• Here you find 3 models, 2 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Gearhart-Schlueter Radio Corp.; Fresno, CA