• Country
• United States of America (USA)

• Manufacturer / Brand
• Harkness Radio Corp.; Newark

• Year
• 1924

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 44115

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

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• TRF without regeneration; 2 AF stage(s); Reflex

• Wave bands
• Broadcast only (MW).

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

• from Radiomuseum.org
• Model: 2 Tube Reflex - Harkness Radio Corp.; Newark

• Shape
• Tablemodel, with any shape - general.

• Notes

• 2 Tube, Reflex TRF receiver with no regeneration utilizing special tuned transformers manufactured by Harkness and sold as a home-built kit. Based on the 1 tube reflex followed by an audio amplifier.

• Price in first year of sale
• 33.00 $

• External source of data
• Ernst Erb

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

• Mentioned in
• -- Original prospect or advert (Radio Frequency Amplification, Theory & Practice by Kenneth Harkness. 2nd Ed, 1924, Page 170)

• Other Models

• Here you find 7 models, 6 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Harkness Radio Corp.; Newark