AKA: electronic calculator HTH 830D, Product number (P/N): 830D,
Keywords/Tags: 830D | HTH830D (HTH 830D) | electronic calculator
Date of intro: 1977, Dimensions: 117x73x18mm, Weight: 78g,
Power: 1.5V: (AA x1) + Adaptor,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 23, #Key-Blue: 11, #Key-Red: 1, #Key-White: 11,
Keyboard Array (Rows x Columns): 06x04, Keyboard Layout: [C] [+/-] [%] - [(Pi)] [x²] [1/x] [(SquareRoot)x] - [7] [8] [9] [(Division)] - [4] [5] [6] [x] - [1] [2] [3] [-] - [0] [.] [=] [+],
Classification: / Pocket,
Featuring: Procent, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Components: 15 ... 5 Capacitor(s), 4 Diode(s), 2 Resistor(s), 2 Transistor(s), 1 IC(s),
Main Components: NEC: D1801C,
Resemblance with: (Resemblance 005B),
Serie-members: DETRON: 830D (version-1) ([C]); DETRON: 830D (version-2) ([C/E]); DETRON: 830D (version-3) (Black),
Known Serial-numbers: 71102244 | 7110275 (List of all S/Ns from DETRON)
Collector value: 6/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VINTAGE TECHNOLOGY