Vintage Electronic Calculators:

Overview of Brands


APF: 24 (version-1)
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AKA: MARK 24, AKA (Label): mark 24, MEMORY CALCULATOR, Product number (P/N): 24,
Keywords/Tags: 24 | MARK 24 | MEMORY CALCULATOR
Date of intro: ~1974, Origin: Japan (List),
Power: 9V,
Display: Type = Display (VFD) (List),
Number of keys: 24, #Key-Black: 20, #Key-White: 4,
Keyboard Array (Rows x Columns): 05x05,
Miscellaneous switch: [(Blank)-ON],
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Serie-members: APF: 24 (version-1) (No Red Key); APF: 24 (version-2) (One Red Key),
Known Serial-numbers: R001526 (R-001526) | R003663 (R-003663) | R010460 (R-010460) (List of all S/Ns from APF)
Collector value: 7/10,


Created: 02-jan-2015, Manual-update: 05-oct-2021, Batch-update: 23-mar-2023             

# Pageloads since 2018: 24             

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