• Country
• United States of America (USA)

• Manufacturer / Brand
• Shamrock Manufacturing Co.; Newark, NJ

• Year
• 1924/1925

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

• Radiomuseum.org ID
• 57838

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); Reflex

• Material
• Various materials

• from Radiomuseum.org
• Model: Shamrock Harkness Kit - Shamrock Manufacturing Co.;

• Notes
• Two dials (primary tuning control knobs)

• Price in first year of sale
• 35.00 $

• External source of data
• Ernst Erb

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

• Literature/Schematics (4)
• October 25th, 1924 Radio Digest magazine advertisement on page 7

• Other Models

• Here you find 21 models, 6 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Shamrock Manufacturing Co.; Newark, NJ