Vintage Electronic Calculators:

Overview of Brands


UNISONIC: XL121 (version-2)
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Product number (P/N): XL121 (XL-121),
Keywords/Tags: XL121 (XL-121)
Origin: Japan (List),
Power: AC,
Number of keys: 25, #Key-Black: 12, #Key-Blue: 12, #Key-Orange: 1,
Keyboard Array (Rows x Columns): 04x07,
Decimal switch: [A-2-3-4-F], Round switch: [5/4-(ArrowRight)], Miscellaneous switch: [IC-(ArrowRight) K-(ArrowRight)], Indicators: OVF MEM ON,
Classification: / Desktop with Display,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Known Serial-numbers: 050827 (List of all S/Ns from UNISONIC)
Collector value: 7/10,


Created: 02-jan-2006, Manual-update: 20-apr-2022, Batch-update: 24-mar-2023             

# Pageloads since 2018: 12             

1 Pic(s),


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