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Corvus 804

Date of introduction:  1975 Display technology:  LED-stick
New price:   Display size:  8
Size:  5.4" x 3.0" x 1.1"
 136 x 77 x 28 mm3
   
Weight:  4.1 ounces, 115 grams Serial No:  33007
Batteries:  9V Date of manufacture:  mth 03 year 1975
AC-Adapter:   Origin of manufacture:  Hong Kong
Precision:  8 Integrated circuits:  Mostek MK50112N
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

Corvus, the consumer division of the famous IC manufacturer MOSTEK, introduced with the Model 804 a basic four-function calculator with Memory, square-root and percent keys in a bright orange.

Dismantling this calculator manufactured in March 1975 reveals a simple construction based on the Mostek MK50112N calculator circuit and an additional driver for the red LED display.

Learn more about Mostek Calculator Integrated Circuits.

This rare Corvus 804 calculator was donated by Alex from GetLoFi. Thanks!


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If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, November 7, 2010. No reprints without written permission.