AKA: Datamath, AKA (Label): Datamath, electronic calculator, Product number (P/N): 2500,
Keywords/Tags: 2500 | Datamath
Date of intro: feb-1973, Origin: USA (List), Dimensions: 140x74x44mm, Weight: 255g,
Power: Rechargeable,
Display: Type = Display (LED) (List),
Number of keys: 18, #Key-Beige: 6, #Key-Orange: 1, #Key-White: 11,
Keyboard Array (Rows x Columns): 05x04,
Miscellaneous switch: [CHAIN-CONST],
Classification: / Pocket,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: (Docu_Catalogs): RADIO BOURSE 1974-75; TEXAS INSTRUMENTS_docu: (Instr.) 2500; TEXAS INSTRUMENTS_parts: (Box) 2500 (version-3),
Main Components: TEXAS INSTRUMENTS: CAL30367H,
Resemblance with: LONGINES SYMPHONETTE: Electronic Calculator,
Serie-members: TEXAS INSTRUMENTS: 2500 (version-1) (;[CE/D]-key, Keyboard Beige); TEXAS INSTRUMENTS: 2500 (version-2) ([CE/D]-key, Keyboard Black); TEXAS INSTRUMENTS: 2500 (version-3) ([CE]-key, Keyboard Black, Rechargeable); TEXAS INSTRUMENTS: 2500 (version-4) ([CE]-key, Keyboard Black, Rechargeable + normal batteries),
Known Serial-numbers: ? | 2500241593 (2500-241593) | 2500285343 (2500-285343) | 2500646837 | 2500697478 (2500-697478) (List of all S/Ns from TEXAS INSTRUMENTS)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),