• Country
• United States of America (USA)

• Manufacturer / Brand
• Amplex Instrument Laboratories; New York (NY)

• Year
• 1924/1925

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

• Radiomuseum.org ID
• 285974

• • Brand: Harmo-Sonic

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

• Number of Tubes
• 5

• Valves / Tubes
• UV201A UV201A UV201A UV201A UV201A

• Main principle
• TRF with 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: Amplex Cockaday Four Circuit Tuner - Amplex Instrument Laboratories

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

• Price in first year of sale
• 64.99 $

• Mentioned in
• -- Original prospect or advert (December, 1924 Popular Radio Magazine page 57)

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 9 models, 5 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Amplex Instrument Laboratories; New York (NY)