Model: JE-170UBattery: 2 x AAAC adapter: 3 volt adapterYear: 1980Chip: TMC1081NLInfo: made in Japan
Model: JE-850Battery: 4 x ni-cd AAAC adapter: 6 VDCYear: 1973Chip: TMC0115NCInfo: The peculiarity of this model was the use of classic AA batteries. Made in Japan
Model: JE-855Battery: 4 x ni-cd AAAC adapter: 6 VDCYear: 1973Chip: TMC0131NCInfo: made in Japan