AKA: MARK 23, Electronic Slide Rule Calculator, AKA (Label): mark 23, HANDHELD SLIDE RULE CALCULATOR, Product number (P/N): 23,
Keywords/Tags: 23 | MARK 23 | Electronic Slide Rule Calculator
Date of intro: 1975, Origin: Japan (List),
Power: 3.6V: (1.2V x3) Rechargeable, Adaptor: APF_adaptors: 415,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 20, #Key-Black: 11, #Key-Red: 1, #Key-White: 8,
Miscellaneous switch: [ON-OFF],
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Related with: APF_docu: 0402351 (Instr.) 23; APF_parts: 0302321 (Box) 23,
Main Components: MOS TECHNOLOGY: MPS7545; or; WESTERN DIGITAL: FS1732B,
Original Equipment Manufacturer : APF: 23 (List of all Export-OEM-models from APF), Resemblance with: J.C.PENNEY: 2300,
Known Serial-numbers: J006819 (J-006819) | J023828 (J-023828) | MT016214 (MT-016214) | MT5012527545 (MT-501252, 7545) | R001503 (R-001503) (List of all S/Ns from APF)
Collector value: 7/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: SMITHSONIAN MUSIC