Vintage Electronic Calculators:

Overview of Brands


MBO: R300
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AKA: ATLAS R300, AKA (Label): Bestell-Nr 0656, Product number (P/N): 0656,
Keywords/Tags: 0656 | ATLAS | R300
Date of intro: ~1976, Dimensions: 140x75x26mm, Weight: 125g,
Power: 3V: (AA x2) + Adaptor,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 28,
Miscellaneous switch: [(Blank)-ON(ArrowRight)],
Classification: / Pocket,
Featuring: Procent, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Resemblance with: (Resemblance 012D),
Known Serial-numbers: 014068 | 023921 (List of all S/Ns from MBO)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),


Label, name plate

Label, name plate
S/N: 023921

Protection (pouche)

Created: 28-apr-2007, Manual-update: 04-sep-2020, Batch-update: 06-aug-2022             

# Pageloads since 2018: 7             

4 Pic(s),


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