• 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
• 311128

• Number of Transistors
• 9

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / AA: 2 x 1.5 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 9 Transistor GK-900 - Harpers International Inc.;

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

• Dimensions (WHD)
• 2.875 x 4.375 x 1.125 inch / 73 x 111 x 29 mm

• Notes

• Made in Japan

  The circuit board is the same in the models reported under Lafayette FS-91.

• Mentioned in
• Collector's Guide To TrR1 Bunis trans.94 (1996, page 117)

• Author
• Model page created by Aldo Andreani. 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