• Country
• Japan

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

• Year
• 1965–1968

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 197915

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

• Number of Transistors
• Semiconductors present.

• Semiconductors
• 2SA102 2SA101 2SA101 2SB175 2SB176 2SB176

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

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Details
• Record Player (not changer)

• Power type and voltage
• Batteries / addl. power jack / D: 6 x 1.5 / DC 9 Volt

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

• Power out
• 0.7 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: National Radio Phonograph SG-555 - Panasonic, Matsushita,

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

• Dimensions (WHD)
• 11 x 3.0625 x 10.625 inch / 279 x 78 x 270 mm

• Notes
• Portable Transistor Radio Phonograph brand National, model SG-555 with braodcast band and a record player for 33 1/3 and 45 rmp. The model SG-555 can be operated with 6 D cells or with an external power of 9 volts DC. It has also an ear plug. It is made by Mathsushita Electric Industrial Co. Ltd in Japan.

• Net weight (2.2 lb = 1 kg)
• 3 lb 8 oz (3.5 lb) / 1.589 kg

• Price in first year of sale
• 139.00 DM

• Source of data
• -- Original-techn. papers.

• Mentioned in
• Novum K.G. Rundfunk Fernseh Phono Katalog 1968/69

• Literature/Schematics (1)
• J.R. Publications Transistor Radio Service Handbook (Group C4, 1967, Page N144.)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 3042 models, 2819 with images and 632 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