Vintage Electronic Calculators:

Overview of Brands


BOWMAR: 91505 (version-2)
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AKA (Label): MX-90 CALCULATOR, MODEL NO. MX-90, Product number (P/N): 91505,
Keywords/Tags: 91505 | MX90 (MX-90)
Date of intro: ~1974, Origin: Mexico (List), Dimensions: 135x80x38mm, Weight: 185g,
Power: Rechargeable, Adaptor: BOWMAR_adaptors: B901-077-4,
Display: Type = Display (LED) (List), Brand = BOWMAR: Optostic, Digits = 10+1,
Number of keys: 25, #Key-Black: 24, #Key-Red: 1,
Miscellaneous switch: [(Sigma)-(Blank)],
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Related with: BOWMAR_docu: A907-901-0 (Instr.) MX90,
Main Components: BOWMAR: PM907402A,
Original Equipment Manufacturer : BOWMAR: 91505 (version-2) (List of all Export-OEM-models from BOWMAR), Resemblance with: RADIO SHACK: EC400,
Serie-members: BOWMAR: 91505 (version-1) (1 Blue Key); BOWMAR: 91505 (version-2) (1 Red Key),
Known Serial-numbers: 224100 | 261683 (List of all S/Ns from BOWMAR)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1


Created: 20-may-2019, Manual-update: 19-oct-2019, Batch-update: 25-feb-2024             

# Pageloads since 20-may-2019 : 38             

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