Sharp EL-51T (Scientific calculator for OHP)

Sharp EL-51T
The Sharp EL-51T is a scientific calculator with 10 digits precision and algebraic logic. It has 50 functions, 44 keys, and an LCD (liquid crystal) display. The power source is 2xLR44. The calculator was manufactured in Taiwan.

The calculator has a transparent display area which is intended to be placed on an Overhead Projector (OHP) to enable a teacher to demonstrate calculations to a class. Presumably the "T" designation is for "Teacher".

Facts at a glance:

Feature Value
Type: Scientific
Functions: 50
Keys: 44
Precision: 10
Logic: Algebraic
Display type: LCD
Length: 141mm
Width: 69mm
Thickness: 8mm
Weight: 80g
Power Consumption: 0.001W
Power Source: 2xLR44
Country: Taiwan
Year introduced: 1985
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See other calculators by Sharp