Specifications for Sharp QT-8D

Manufacturer: Sharp Electronics Corporation
Model Number: QT-8D
Serial Number: 0041857
Date of Introduction: December, 1969(Japan), March 1970(US)
Date of Manufacture: July, 1970
Manufactured In: Japan
Original Price: $395
Weight: 3.1 Pounds
Size: 9 11/16" Deep, 5 5/16" Wide, 2 13/16" High
Power Requirement: 7 Watts Maximum, 120VAC 50/60Hz
Display Technology: Multiplexed Itron 8-Segment Vacuum-Fluorescent Tubes
Logic Technology: Rockwell LSI, 4 Chip Set
NRD2256, AC2261, DC2266, AU2271
Special Clock Generator/Driver IC and "Glue" Logic IC's
5 Transistors and 11 Diodes
Digits of Capacity: 8
Decimal Modes: Automatic Floating Decimal
Arithmetic Logic: Arithmetic for addition/subtraction
Algebraic for multiplication/division
Unique Dual Function Multiply/Divide Key
Math Functions: Four Function
Constant: None
Memories: None
Clock Frequency: 78 KHz
Performance: (Mfg. Claimed)
Addition/Subtraction: 20 mS (0.02 Second)
Multiplication: 150 mS (0.15 Second)
Division: 200 mS (0.2 Second)
Notes: Second MOS LSI-based Electronic Calculator
First MOS LSI-based calculator was the Victor 3900, 1965
Marketed by Facit (an OEM customer of Sharp) as the Facit 1115.
Marketed by Addo-X as the Addo-X 9354.
Soviet "clone" was the Elektronika C3-07, circa 1974.

Previous Machine: Monroe 990
Next Machine: Monroe 1655

Related Machines: Sharp EL-8
Facit 1111
Burroughs C3146
Sharp EL-160
Burroughs C3260

Manual: Instruction Manual [PDF, 20 Pages, 892K]

Advertising: Breakthrough! [150K]

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