• Country
• Japan

• Manufacturer / Brand
• Mitsubishi Electric Corporation

• Year
• 1931/1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 170406

• Number of Tubes
• 4

• Valves / Tubes
• UY-227_Japan UX-226_Japan KX-112B UX112A

• Main principle
• TRF with regeneration

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Concertone B RR-401 - Mitsubishi Electric

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Notes
• Mitsubishi started manufacturing of radio licensed from Westinghouse Co., Radio set was supplied as OEM by Tiger Battery Works and sold by Ryobi Denki Shokai Ltd. Mitsubishi named their radio set "Concertone" . In 1936, Mitsubishi Electric transferred the all rights of Concertone radio to Tiger Battery Works. Tiger battery Works changed their company name into Tiger Electric Co., They started original designed radio. Mitsubishi electric faded out from radio industry. They returned in 1946 as "Diatone" radio.

• Source of data
• - - Data from my own collection

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

• Other Models

• Here you find 321 models, 262 with images and 92 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Mitsubishi Electric Corporation