AKA: 121 M, AKA (Label): 12-DIGIT DESK-TOP, EC-1200, PN: 943076, Product number (P/N): 121M,
Keywords/Tags: 121M | 973076
Date of intro: ~1978,
Power: AC,
Display: Type = Display (VFD) (List), Digits = 12+1,
Number of keys: 25, #Key-Black: 4, #Key-Brown: 8, #Key-Orange: 2, #Key-White: 11,
Decimal switch: [DECIMAL_FLOATING-FIXED 2], Miscellaneous switch: [CONSTANT_OUT-IN POWER_OFF-ON],
Classification: / Desktop with Display,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Resemblance with: (Resemblance 502),
Serie-members: WELCO: 121M (version-1) (Black); WELCO: 121M (version-2) (Silver),
Collector value: 7/10,
Courtesy of: CARRER Paolo,