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BOWMAR: MX55 (version 4)
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AKA (Label): MX55, Product number (P/N): MX55,
Keywords/Tags: MX55
Date of intro: ~1974, Origin: Uruguay (List), Dimensions: 146x75x34mm, Weight: 126g,
Power: Rechargeable,
Display: Type = Display (LED) (List), Brand = BOWMAR: Optostic, Digits = 8+1,
Keyboard: KLIXON, Number of keys: 18, #Key-Black: 17, #Key-Red: 1,
Keyboard Array (Rows x Columns): 05x04,
Miscellaneous switch: [ON-(Blank)],
Classification: / Pocket,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with:
BOWMAR_parts: E905-011 (Panel)
BOWMAR_parts: E905-020 (Panel)
(Resellers): AMERICAN PRODUCTS S.A. (APSA)
,
Main Components: BOWMAR: PM905411B,
Original Equipment Manufacturer : BOWMAR: MX55 (version 1) (List of all Export-OEM-models from BOWMAR),
Serie-members:
BOWMAR: MX55 (version 1) (Black/Grey, Red key)
BOWMAR: MX55 (version 2) (Black/Black, Red key)
BOWMAR: MX55 (version 3) (No Red key)
BOWMAR: MX55 (version 4) (Black/Grey, Red key, Made in Uruguay)
,
Known Serial-numbers: 5130 (List of all S/Ns from BOWMAR)
Collector value: 9/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),

Item

Internals / Internals (keyboard) / Connector

Label, name plate / Examples of use / Bottom

Created: 07-oct-2026, Manual-update: 07-oct-2026             

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