AKA (Label): MODEL E420, Product number (P/N): E420,
Keywords/Tags: E420
Date of intro: ~1976, Origin: Japan (List), Korea (List), Dimensions: 142x90x30mm, Weight: 148g,
Power: 6V: (AA x4) + Adaptor,
Display: Type = Display (VFD) (List), Brand = FUTABA: 9CT08, Digits = 8+1,
Number of keys: 27, #Key-Black: 14, #Key-Orange: 2, #Key-White: 11,
Keyboard Array (Rows x Columns): 06x05, Keyboard Layout: [C] [CE] - [1/x] [+/-] [(SquareRoot)] [EX] [%] - [7] [8] [9] [(Division)] [MC] - [4] [5] [6] [x] [MR] - [1] [2] [3] [-] [M-] - [0] [.] [=] [+] [M+],
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Components: 7 Capacitor(s), 3 Diode(s), 10 Resistor(s), 2 Transistor(s), 1 IC(s),
Main Components: TEXAS INSTRUMENTS: TMS1071NL,
Resemblance with: (Resemblance 007_06_05_27),
Known Serial-numbers: 6D103456 (6D-103456) (List of all S/Ns from DETSON)
Collector value: 7/10,
Internet: Link-1: VINTAGE TECHNOLOGY