Product number (P/N): SR99M,
Keywords/Tags: SR99M
Date of intro: ~1975, Origin: Japan (List), Dimensions: 123x78x24mm, Weight: 114g,
Power: 3V: (AA x2) + Adaptor,
Display: Type = Display (VFD) (List), Brand = TOSHIBA: E6532A, Digits = 8+1,
Number of keys: 23, #Key-Grey: 11, #Key-Red: 1, #Key-White: 11,
Keyboard Array (Rows x Columns): 05x05, Keyboard Layout: [(Pi)] [(SquareRoot)] [C] - [7] [8] [9] [M=] [RM] - [4] [5] [6] [x] [(Division)] - [1] [2] [3] [+] [-] - [0] [.] [+/-] [=] [%],
Miscellaneous switch: [OFF-ON],
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Components: 24 ... 8 Capacitor(s), 4 Diode(s), 5 Resistor(s), 2 Transistor(s), 1 IC(s),
Main Components: NEC: µPD278C,
Resemblance with: (Resemblance 015_05_05_23B), Made by: TEAL (List of all Import-OEM-models for PRINZTRONIC),
Serie-members: PRINZTRONIC: SR99M (version-1) (23 keys); PRINZTRONIC: SR99M (version-2) (22 keys); PRINZTRONIC: SR99M (version-3) (23 keys and [PI]); PRINZTRONIC: SR99M (version-4) (22 keys and [PI]),
Known Serial-numbers: 264147 (List of all S/Ns from PRINZTRONIC)
Collector value: 7/10,
Courtesy of: BÖHM Frank,