AKA (Label): Calculator Model 9TR, Product number (P/N): 9TR,
Keywords/Tags: 9TR
Date of intro: 1975, Origin: Mexico (List), Dimensions: 154x76x22mm, Weight: 122g,
Power: 9V + Adaptor,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 18, #Key-Green: 18,
Keyboard Array (Rows x Columns): 05x04, Keyboard Layout: [%] [=] - [7] [8] [9] [(Division)] - [4] [5] [6] [x] - [1] [2] [3] [-] - [CE/C] [0] [.] [+],
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: ROCKWELL_docu: (Instr.) 9TR; ROCKWELL_parts: (Box) 9TR; (Resellers): TRUE VALUE,
Components: 5 ... 2 Capacitor(s), 2 Resistor(s), 1 IC(s),
Main Components: ROCKWELL: 20167D67-03,
Resemblance with: RADIO SHACK: EC220, (Resemblance 057),
Serie-members: ROCKWELL: 8R (); ROCKWELL: 9TR (),
Known Serial-numbers: 132996 | 162407 | 164436 | 170593 | 178894 | 213534 | 216387 | 228220 | 249374 | 256235 | 259343 | 264662 | 272033 | 284251 (List of all S/Ns from ROCKWELL)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VINTAGE TECHNOLOGY, Link-2: SMITHSONIAN MUSIC