AKA: 10-DIGIT SCIENTIFIC CALCULATOR EC-4028, AKA (Label): EC-4028, CAT. NO. 65-815, Product number (P/N): 65815 (65-815),
Keywords/Tags: 65815 (65-815) | EC4028 (EC-4028) | 10-DIGIT SCIENTIFIC CALCULATOR
Date of intro: 1993, Origin: Thailand (List),
Display: Type = Display (LCD) (List),
Number of keys: 42, #Key-Black: 18, #Key-Grey: 21, #Key-Orange: 1, #Key-Red: 2,
Keyboard Array (Rows x Columns): 08x06,
Classification: / Pocket,
Featuring: Scientific functions, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Known Serial-numbers: 1A4 (List of all S/Ns from RADIO SHACK)
Collector value: 7/10,