• Country
• Giappone

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

• Year
• 1967–1970

• Category
• Radio (o sintonizzatore del dopoguerra WW2)

• Radiomuseum.org ID
• 240503

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

• Number of Transistors
• 12

• Semiconductors
• 2SA341 2SA341 2SA101 2SA101 2SB171 2SC183 2SB173 2SB175 2SB176 2SB176 2SB176 2SB176 OA90 1S1211 1S1211 1S1211

• Main principle
• Supereterodina con stadio RF; ZF/IF 455 kHz

• Wave bands
• Onde medie (OM) e 2 gamme di onde corte (2 x OC).

• Power type and voltage
• Batterie a secco / D: 3 × 1,5 Volt

• Altoparlante
• AP magnetodinamico (magnete permanente e bobina mobile) / Ø 9 cm = 3.5 inch

• Potenza d'uscita
• 0.4 W (0.7 W max.)

• Materiali
• Plastica (non bachelite o catalina)

• from Radiomuseum.org
• Model: National Panasonic Super Sensitive R-397 - Panasonic, Matsushita,

• Forma
• Apparecchio portatile > 20 cm (senza la necessità di una rete)

• Dimensions (WHD)
• 272 x 147 x 61 mm / 10.7 x 5.8 x 2.4 inch

• Notes

• National Model R-397

  A three-band, 12-transistor, 4-diode portable radio.

  Features: tuned RF stage; exclusive signal strength meter and battery check; 3½" PM dynamic speaker, 700 mW output. Fine tuning; tone switch; dial light. Jacks for external antenna and earth, eaphone or external speaker. Powered by three Type UM-1 cells.

  Frequency range: MW, 525 - 1605 kHz; SW1, 2.3 - 7 MHz; SW2, 7 - 22 MHz. (MINGAY'S PRICE SERVICE)

  Comes with brown leather carrying case.

• Net weight (2.2 lb = 1 kg)
• 1.5 kg / 3 lb 4.9 oz (3.304 lb)

• Price in first year of sale
• 99.00 AUS $

• Mentioned in
• Mingay's Price Service (Feb 1968 to Feb 1970.)

• Letteratura / Schemi (1)
• -- Original-techn. papers. (Service Sheet No. RD-507.)

• Letteratura / Schemi (2)
• J.R. Publications Transistor Radio Service Handbook (Group C5, 1968, Page N151.)

• Other Models

• Here you find 3074 models, 2851 with images and 635 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