AKA (Label): MODEL E420, Product number (P/N): E420,
Keywords/Tags: E420
Date of intro: ~1976, Origin: Japan (List),
Power: 6V: (AA x4) + Adaptor,
Display: Type = Display (VFD) (List),
Number of keys: 25, #Key-Black: 12, #Key-Orange: 2, #Key-White: 11,
Keyboard Array (Rows x Columns): 05x05,
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Resemblance with: (Resemblance 007_05_05_25),
Known Serial-numbers: 6B100581 (6B-100581) SERIES 255A (List of all S/Ns from MONTEVERDI)
Collector value: 7/10,