• Country
• Japan

• Manufacturer / Brand
• NEC Corporation, Nippon Electric Co. Ltd. (Nippon Denki); Tokyo

• Year
• 1947

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 170399

• Number of Tubes
• 6

• Valves / Tubes
• Ut-6L7G 76 6D6 6B7 42 80

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast and Short Wave (SW).

• 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

• Material
• Wooden case

• from Radiomuseum.org
• Model: RA-100B - NEC Corporation, Nippon

• Shape
• Tablemodel, with any shape - general.

• Notes
• Model RA-100A was the first model of NEC radio. The first model RA-100A used a transformer-less circuit. The line up of tubes are 6A7-6F7-6B7-43-25Z5-B300B (ballast lamp). Considering power line stability and parts supply, this model probably ended up as being a prototyxpe only. This model here, model RA-100B used a typical circuit of early Japanese all wave radios.

• Source of data
• - - Manufacturers Literature

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

• Other Models

• Here you find 176 models, 143 with images and 17 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from NEC Corporation, Nippon Electric Co. Ltd. (Nippon Denki); Tokyo