AKA: BRDA 12U, Product number (P/N): BRDA12U (BRDA 12U),
Keywords/Tags: BRDA12U (BRDA 12U)
Date of intro: ~1974, Origin: Poland (List), Dimensions: 155x80x27mm,
Power: 9V: (AA x6) + Adaptor,
Display: Type = Display (LED) (List), Brand = NATIONAL SEMICONDUCTOR: A1198; or; UNITRA-CEMI: CQYP94, Digits = 8+1,
Number of keys: 30, #Key-Black: 18, #Key-Grey: 11, #Key-Orange: 1,
Miscellaneous switch: [0-1],
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: UNITRA-ELTRA_docu: (Schematics) BRDA12U,
Main Components: MOS TECHNOLOGY: MPS7541; or; UNITRA-CEMI: MC74007,
Other components: UNITRA-CEMI: UCY74548,
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: KOMPJUTRY, Link-2