| 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 (CG2341) in TO-5 Package with heatsink
|
|
Hitachi Small Scale MOS "Glue" IC, HD3103 (Quintuple PMOS Transistors) |
|
5 Transistors and 11 Diodes
|
| Clock Frequency: |
60 KHz
|
| 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.
|