Vintage Electronic Calculators:

Overview of Brands


ROYAL: 91K (version-2)
(Page 1/1)

AKA (Label): MODEL UA 122, Product number (P/N): UA122 (UA 122),
Keywords/Tags: UA122 (UA 122)
Date of intro: ~feb-1976, Origin: Japan (List), Dimensions: 120x74x22mm,
Power: 6V: (AAA x4),
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 24, #Key-Black: 7, #Key-Blue: 4, #Key-Red: 2, #Key-White: 11,
Keyboard Array (Rows x Columns): 05x05,
Decimal switch: [F-2-3], Miscellaneous switch: [(Blank)-(Sigma) on-off],
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Main Components: NEC: µPD947C,
Resemblance with: (Resemblance 033), Made by: OMRON (List of all Import-OEM-models for ROYAL),
Serie-members: ROYAL: 91K (version-1) (Black); ROYAL: 91K (version-2) (Beige),
Known Serial-numbers: 91K69208477 (91K 69.208.477) | 91K69210384 (91K 69.210.384) (List of all S/Ns from ROYAL)
Collector value: 7/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: SCHLEPPTOPS Rechnerwiki


Created: 30-dec-2007, Manual-update: 25-may-2021, Batch-update: 26-feb-2024             

# Pageloads since 2018: 19             

1 Pic(s),


If you have a (better) personal picture and/or missing info about any model not listed: Please do send a Mail