• Country
• Japan

• Manufacturer / Brand
• Panasonic, Matsushita, National ナショナル (also tubes); Osaka

• Year
• 1968 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 113951

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

• Number of Transistors

• Semiconductors
• 2SC645 2SC185 2SC645 2SC469 2SC469 2SB173 2SB175 2SB176 2SB176 OA90 OA90 1S1211 1S1211 OA90 OA90 OA90

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz; 3 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)     8 FM circuit(s)

• Wave bands
• Broadcast, Short Wave plus FM or UHF.

• Power type and voltage
• Batteries / addl. power jack / 4 x 1.5 / DC 6 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: National Panasonic RF-670J - Panasonic, Matsushita,

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

• Dimensions (WHD)
• 7 x 4.25 x 2 inch / 178 x 108 x 51 mm

• Notes

• Wave bands:
  FM: 87 - 108 MHz
  SW: 5.9 - 18 MHz (50.8 - 16.7 m)
  MW: 525 - 1605 kHz

  Sockets for earphone and external DC power supply. Buttons for dial illumination and low-high tone control. Supplied with a leather case.

  This model was also available with Japanese FM range 76...90 MHz under the name World Boy Go RF-670.

• Net weight (2.2 lb = 1 kg)
• 0.6 kg / 1 lb 5.1 oz (1.322 lb)

• Author
• Model page created by Howard Craven. See "Data change" for further contributors.

• Other Models

• Here you find 3002 models, 2777 with images and 627 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Panasonic, Matsushita, National ナショナル (also tubes); Osaka