AKA: MARK 40, AKA (Label): MODEL NO: MARK 40, Product number (P/N): 40,
Keywords/Tags: 40 | MARK 40
Date of intro: 1975, Origin: Japan (List), Hong Kong (List), Dimensions: 115x68x35mm, Weight: 70g,
Power: 9V + Adaptor, Adaptor: APF_adaptors: 710; APF_adaptors: 751S,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 18, #Key-Blue: 7, #Key-Grey: 11,
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Main Components: GENERAL INSTRUMENT: C626-1,
Original Equipment Manufacturer : APF: 40 (List of all Export-OEM-models from APF), Resemblance with: MONTGOMERY WARD: P90,
Known Serial-numbers: 0188140 | H065486 (H 065486) | H72253 (H 72253) | H73719 (H 73719) | J186439 (J 186439) | J197629 (J 197629) | J237366 (J 237366) | M0257986 (M-0257986) | M0264647 (M-0264647) | M0326843 (M-0326843) | M160216 (M-160216) | M165620 (M-165620) | R0219700 (R-0219700) | R0375800 (R-0375800) (List of all S/Ns from APF)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VINTAGE TECHNOLOGY, Link-2: SMITHSONIAN MUSIC, Link-3: EARLY ELECTRONIC CALCULATOR TECHNOLOGY REFERENCE