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RA-100B; NEC Corporation, (ID = 736039) Radio RA-100B; NEC Corporation, (ID = 736040) Radio
RA-100B; NEC Corporation, (ID = 736042) Radio
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RA-100B; NEC Corporation, (ID = 736039) Radio
NEC Corporation,: RA-100B [Radio] ID = 736039 465x382
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For model RA-100B, NEC Corporation, Nippon Electric Co. Ltd. (Nippon Denki); Tokyo:
Front view of NEC RA-100B
Country:  Japan
Manufacturer / Brand:  NEC Corporation, Nippon Electric Co. Ltd. (Nippon Denki); Tokyo
Year: 1947 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: 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
Power out
from Model: RA-100B - NEC Corporation, Nippon
Material Wooden case
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

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

All listed radios etc. from NEC Corporation, Nippon Electric Co. Ltd. (Nippon Denki); Tokyo
Here you find 170 models, 133 with images and 14 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.