• Country
• United States of America (USA)

• Manufacturer / Brand
• Harpers International Inc.; New York

• Year
• 1960 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 129136

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1T4 1S5 3S4

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 67 & 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: GK-301 - Harpers International Inc.;

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 170 x 110 x 50 mm / 6.7 x 4.3 x 2 inch

• Notes
• PERSONAL RADIO Tubes and circuit under License by RCA Made in Japan

• Source of data
• -- Collector info (Sammler)

• Mentioned in
• The Portable Radio in American Life (p. 204)

• Author
• Model page created by Felix Masso Milleiro. See "Data change" for further contributors.

• Other Models

• Here you find 22 models, 19 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Harpers International Inc.; New York