AKA: Mathematician PR, Product number (P/N): 4515,
Keywords/Tags: 4515 | Mathematician PR
Date of intro: ~1975, Origin: USA (List), Dimensions: 152x76x28mm,
Power: Rechargeable,
Display: Type = Display (LED) (List), Brand = NATIONAL SEMICONDUCTOR: A398, Digits = 8+1,
Number of keys: 36,
Miscellaneous switch: [Load-Step-Run],
Classification: / Pocket / RPN (Reverse Polish Notation),
Featuring: Scientific functions, Square root, PI, Programmable, Programmable Steps: 102,
Main Components: NATIONAL SEMICONDUCTOR: MM5760N; NATIONAL SEMICONDUCTOR: MM5765N,
Other components: NATIONAL SEMICONDUCTOR: DS8867N; NATIONAL SEMICONDUCTOR: DS8873N; NATIONAL SEMICONDUCTOR: MM74C00N {2x}; NATIONAL SEMICONDUCTOR: MM74C02N,
Original Equipment Manufacturer : NOVUS: 4515 (version-2) (List of all Export-OEM-models from NOVUS), Resemblance with: NOVUS: 4515 (version-1); PHILIPS: P35P,
Known Serial-numbers: 1003775 (List of all S/Ns from NOVUS)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Info: No numbers printed on keys
Internet: Link-1: WASSERMAN Katie