DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Corvus 400
| Date of introduction: | 1974 | Display technology: | LED-modules |
| New price: | Display size: | 8 | |
| Size: | 5.0" x 3.0" x 0.9" | ||
| Weight: | 3.7 ounces | Serial No: | 400-110291 |
| Batteries: | 4*N cells | Date of manufacture: | mth 02 year 1975 |
| AC-Adapter: | 6V DC, 750mA | Origin of manufacture: | USA |
| Precision: | 8 | Integrated circuits: | Mostek MK50282A |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
The
Corvus 400 changed during production time it's
calculator brain. This one uses a MK50282A single-chip calculator circuit and two digit driver
circuits instead the MK50280A. Learn more about Mostek
Calculator Integrated Circuits.
With the JCPenney 2310 a colorful sibling of this Corvus 400 was introduced.
Within some month the four unusual N-batteries were replaced with a standard 9V
battery. Don't miss the Corvus 406.
Note:
The pictured calculator is a Datacal II market by V.I.P. Programs Co.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, September 19, 2002. No reprints without written permission.