AKA: MX20, Brainchild, Product number (P/N): 90911,
Keywords/Tags: 90911 | MX20 | Brainchild
Date of intro: 1974, Origin: Mexico (List), Dimensions: 150x70x22mm, Weight: 115g,
Power: 4.5V: (AA x3) + Adaptor,
Display: Type = Display (LED) (List), Brand = BOWMAR: Optostic, Digits = 8+1,
Number of keys: 18, #Key-Black: 18,
Miscellaneous switch: [ON-(Blank)],
Classification: / Pocket,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Main Components: TEXAS INSTRUMENTS: TMS0801NC,
Other components: ITT: B6249 {2x},
Known Serial-numbers: 2024 | 230126 (List of all S/Ns from BOWMAR)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: DATAMATH CALCULATOR MUSEUM, Link-2: VIRTUAL MUSEUM OF CALCULATORS