AKA: the 20T, AKA (Label): Model 20T, Product number (P/N): 20T,
Keywords/Tags: 20T | the 20T
Date of intro: 1977, Origin: Hong Kong (List), Dimensions: 138x75x16mm, Weight: 92g,
Power: 4.5V: (AAA x3) + Adaptor,
Display: Type = Display (VFD) (List),
Number of keys: 23, #Key-Black: 8, #Key-Brown: 11, #Key-Orange: 4,
Keyboard Array (Rows x Columns): 06x05, Keyboard Layout: [MR] [MC] - [7] [8] [9] [M+] [M-] - [4] [5] [6] [%] [+/-] - [1] [2] [3] [+] [(Division)] - [CE/C] [0] [.] [+] [x] - [=],
Miscellaneous switch: [(Blank)-(ArrowRight)ON],
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: ROCKWELL_parts: (Box) 20T,
Components: 25 ... 5 Capacitor(s), 8 Diode(s), 6 Resistor(s), 2 Transistor(s), 1 IC(s),
Main Components: GENERAL INSTRUMENT: CF589,
Serie-members: ROCKWELL: 18T (); ROCKWELL: 20T (),
Known Serial-numbers: 01173126 (01173-126) | 27545017 (27545-017) | 32340017 (32340-017) (List of all S/Ns from ROCKWELL)
Collector value: 7/10,
Internet: Link-1: VINTAGE TECHNOLOGY