• Country
• Japan

• Manufacturer / Brand
• Sharp; Osaka

• Year
• 1978 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 303148

• • alternative name: Hayakawa Electric Co.Ltd.

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

• Number of Transistors
• 11

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz

• Wave bands
• Broadcast (BC) and FM or UHF.

• Details
• Cassette-Recorder or -Player; Remote Control (with wire or wireless)

• Power type and voltage
• Line plus power jack, mostly with battery or storage battery / 120 / DC 9 / D: 6 x 1-5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 16 cm = 6.3 inch

• Power out
• 1.95 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: GF-3700 - Sharp; Osaka

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 355 x 225 x 105 mm / 14 x 8.9 x 4.1 inch

• Notes

• Frequency ranges:
  MW = 525 - 1605 kHz
  FM = 87.6 - 108 MHz

  Frequency range cassette section: 50 - 10000 Hz
  Input terminals: microphone, aux input jacks
  Output terminals: external speaker / earphone
  Remote control jack

  1 IC, 11 transitors, 11 AUX transistors (?), 2 LEDs

  See also models GF-3700X with additional LW and GF-3700H with addional SW band.

• Net weight (2.2 lb = 1 kg)
• 7.5 kg / 16 lb 8.3 oz (16.52 lb)

• Mentioned in
• -- Original-techn. papers.

• Other Models

• Here you find 1338 models, 1209 with images and 517 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sharp; Osaka