Vintage Electronic Calculators:

Overview of Brands


APF: 71
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AKA: MARK 71, Product number (P/N): 71,
Keywords/Tags: 71 | MARK 71
Date of intro: ~1975, Dimensions: 130x74x26mm, Weight: 85g,
Power: 9V + Adaptor, Adaptor: APF_adaptors: 751S,
Display: Type = Display (LED) (List), Brand = BOWMAR: Optostic, Digits = 8+1,
Number of keys: 24, #Key-Blue: 5, #Key-Grey: 11, #Key-White: 8,
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Main Components: MOSTEK: MK50321N,
Known Serial-numbers: H71007211 (H7-007211) (List of all S/Ns from APF)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),


Label, name plate / Bottom
S/N: H71007211 (H7-007211)

Created: 03-mar-2001, Manual-update: 30-nov-2018, Batch-update: 25-feb-2024             

# Pageloads since 2018: 17             

2 Pic(s),


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