Vintage Electronic Calculators:

Overview of Brands


UNITREX: 80M (version-4)
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AKA: mini handy 80M, AKA (Label): mini handy 80M, Product number (P/N): 80M,
Keywords/Tags: 80M | mini handy
Date of intro: ~1974, Origin: Japan (List),
Display: Type = Display (LED: DIL-module) (List), Digits = 8+1,
Number of keys: 20,
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Serie-members: UNITREX: 80M (version-1) (Black/Silver); UNITREX: 80M (version-2) (White, also Orange Keys); UNITREX: 80M (version-3) (White); UNITREX: 80M (version-4) (Brown/Black),
Known Serial-numbers: A47A26159 (List of all S/Ns from UNITREX)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),


Internals (PCB)

Internals (PCB bottom)

Label, name plate / Bottom
S/N: A47A26159

Protection (pouche)

Created: 06-jul-2013, Manual-update: 20-dec-2019, Batch-update: 26-sep-2023             

# Pageloads since 2018: 62             

5 Pic(s),


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