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HITACHI: KK521 (version-2)
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AKA (Label): DESK TOP ELECTRONIC CALCULATOR, TYPE KK, FORM 521, ND184, Product number (P/N): ND184,
Keywords/Tags: ND184 | KK521 | DESK TOP ELECTRONIC CALCULATOR
Date of intro: 1972, Origin: Japan (List), Dimensions: 254x218x80mm, Weight: 1950g,
Power: AC,
Display: Type = Display (VFD tube) (List), Digits = 12,
Number of keys: 22, #Key-Blue: 3, #Key-Grey: 4, #Key-Red: 3, #Key-White: 12,
Keyboard Array (Rows x Columns): 04x07, Keyboard Layout: [CI] [7] [8] [9] [M1+] [M1-] [RM1] - [CM1] [4] [5] [6] [x] [(Division)] - [C] [1] [2] [3] [+=] [R] - [0] [.] [-=],
Decimal switch: [0-1-2-3-4-5-6-7], Round switch: [5/4-(Blank)],
Classification: / Desktop with Display,
Main Components: HITACHI: HD3234P; HITACHI: HD3235P; HITACHI: HD3236P,
Other components: HITACHI: HD2901P; HITACHI: HD3233P {2x}; HITACHI: HD3248P; HITACHI: HD3253; HITACHI: HD9005,
Original Equipment Manufacturer : HITACHI: KK521 (version-2) (List of all Export-OEM-models from HITACHI), Resemblance with: FRIDEN: 1117A,
Serie-members: HITACHI: KK521 (version-1) (Display with Nixie-tubes); HITACHI: KK521 (version-2) (Display with VFD-tubes),
Known Serial-numbers: P161412004 (P 161412004) | P162032009 (P 162032009) | P162082012 (P 162082012) (List of all S/Ns from HITACHI)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VINTAGE CALCULATORS WEB MUSEUM, Link-2: VINTAGE TECHNOLOGY

Item

Calculator
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Rear
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Perspective, profile view
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Perspective, profile view
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Display
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Label
S/N: P161412004 (P 161412004)
(Courtesy of: AAPRO, Ltd.)

Created: 17-apr-2017, Manual-update: 02-dec-2020, Batch-update: 20-jun-2021             

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