• Country
• United States of America (USA)

• Manufacturer / Brand
• Atwater Kent Mfg. Co.; Philadelphia, USA

• Year
• 1924

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 33405

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

• Number of Tubes
• 5

• Valves / Tubes
• UV201A UV201A UV201A or UV200 UV201A UV201A

• Main principle
• TRF without regeneration

• Tuned circuits
• 3 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: 4920 Model 20 Deluxe, 20D - Atwater Kent Mfg. Co.;

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

• Notes

• Same as Model #24; Three dials (primary tuning control knobs)

• Price in first year of sale
• 120.00 $

• External source of data
• Ernst Erb

• Source of data
• Radio Manufacturers of the 1920s, Vol 1

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Other Models

• Here you find 507 models, 330 with images and 332 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Atwater Kent Mfg. Co.; Philadelphia, USA