• Country
• Japan

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

• Year
• 1946–1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 170362

• Number of Tubes
• 8

• Valves / Tubes
• 6D6 6C6 76 6D6 76 6C6 42 80

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

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 100 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6.5 inch = 16.5 cm

• Power out
• 2 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 8A-1 - Panasonic, Matsushita,

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 576 x 311 x 278 mm / 22.7 x 12.2 x 10.9 inch

• Notes
• At 08/1946, Matsushita Electric put the first all wave radio Model 8A-1 on the market. This set used available tubes only. 6D6 and 6C6 was prevailed for TRF set. UY-76 was abundantly stocked in the market. This model used strange circuit to use such tubes. UY-76 was used as diode detector, and 6C6 was used for first audio stage. Design of this model was suitable for Japanese market. Similar design became de facto standard of Japanese radio later. This unique circuit using available tubes probably had some problems. In 1948, Model 8A-1 model changed into Model 8A-2.

• Source of data
• - - Manufacturers Literature

• Literature/Schematics (1)
• the magazine "Musen to Jikken"(The Radio Experimenter's Magagine) 3-4/1946 published by Seibundo-Shi

• Author
• Model page created by Tadanobu Okabe. See "Data change" for further contributors.

• Other Models

• Here you find 3002 models, 2778 with images and 628 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