AKA: 840, AKA (Label): ELECTRONIC CALCULATOR, MODEL JE-840U, Product number (P/N): JE840U (JE-804U),
Keywords/Tags: JE840U (JE-804U)
Date of intro: 1974, Origin: Japan (List), Dimensions: 133x83mm,
Power: 6V: (AA x4) + Adaptor, Adaptor: PANASONIC_adaptors: JL046,
Display: Type = Display (VFD) (List), Digits = 8+1, Extra Display features: Type = Display (LED: as bulb) (List), Quantity = 1,
Number of keys: 18, #Key-Blue: 7, #Key-Grey: 11,
Keyboard Array (Rows x Columns): 04x05,
Classification: / Pocket,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Main Components: MATSUSHITA: MN5530,
Known Serial-numbers: 40500852 | 49504120 (List of all S/Ns from PANASONIC)
Initial Cost Price: USD49.95, Collector value: 7/10,
Internet: Link-1: SILICIUM