National Panasonic Super Sensitive 10 Transistor R-307

Panasonic, Matsushita, National ナショナル (also tubes); Osaka

  • Year
  • 1963–1965
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • ID
  • 97443

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

 Technical Specifications

  • Number of Transistors
  • 10
  • Main principle
  • Superhet with RF-stage
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • Dry Batteries / D: 3 × 1,5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3.5 inch = 8.9 cm
  • Power out
  • 0.3 W (0.5 W max.)
  • Material
  • Plastics (no bakelite or catalin)
  • from
  • Model: National Panasonic Super Sensitive 10 Transistor R-307 - Panasonic, Matsushita,
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 10.375 x 5.5 x 2.125 inch / 264 x 140 x 54 mm
  • Notes
  • National Model R-307

      Ten transistors, one diode, three-band portable radio with A.D. Type transistor 2SA70 (OC170) for crystal-clear, long-range reception. Built-in Ferrite antenna and telescopic whip antenna. Large tuning knob and fine tuning knob and fine tuning control. Tuning - battery life magic meter and 2-step tone control. Dial light for tuning in the dark. Attractive cabinet available in brown or blue colours.
      Specifications: frequency range MW 525-1605 kC/s (kHz). SW1 3.2 - 8.5 MC/s (MHz). SW2 8.5 - 22 MC/s (MHz). Power output 500 mW. Speaker 3½" PM dynamic. 3 x UM-1 (D Cells) flashlight batteries. (MINGAY'S PRICE SERVICE)

    R-307 (R307) ist ein aufwendig gebautes Gerät. Die Transistoren sind nach Philips-Lizenz gefertigt (Serien AF114-117 sowie AC125-126 usw) und bekamen japanische Bezeichnungen (2SA- und 2SB-Serien). Auch die Dioden sind sehr ähnlich den Philips-Vorbildern, sogar die Bezeichnung (OA70). Somit war Matsushita (Hersteller, National-Panasonic eine der Marken, z.B. für R-307, das bei anderen Marken auch anders bezeichnet - aber sonst gleich ist) der einzige japanische Hersteller, der europäische Halbleitertechnologie "gekauft" hat. Alle anderen bezogen die Lizenzen bei Firmen in den USA. Bezüglich Firma Matsushita und deren Marken je nach Markt finden Sie beim Hersteller weitere Informationen.

    R-307 (R307) is a complex device. The transistors are manufactured under Philips license (series AF114-117 and AC125-126 etc.) and have Japanese names (2SA and 2SB series). The diodes are also very similar to the Philips models, even the name (OA70). Matsushita (manufacturer, National-Panasonic one of the brands, e.g. for R-307, which is also called differently by other brands - but is otherwise the same) was the only Japanese manufacturer to "buy" European semiconductor technology. All others obtained licenses from companies in the United States. You can find more information about the company Matsushita and its brands depending on the market from the manufacturer.

    This model sold in Australia between 1963 & 1965 for £53/11/-. Price & weight includes batteries.

  • Net weight (2.2 lb = 1 kg)
  • 1.1 kg / 2 lb 6.8 oz (2.423 lb)
  • Source of data
  • -- Collector info (Sammler)
  • Author
  • Model page created by Johann Schönauer. See "Data change" for further contributors.

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The model National Panasonic Super Sensitive 10 Transistor is part of the collections of the following members.