Radio Shack EC-4000 (Programmable)

The Radio Shack EC-4000 is a programmable calculator with 8 digits precision and algebraic logic. It has 40 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 3xAA battery pack. Note: TI 57

Facts at a glance:

Feature Value
Type: Programmable
Keys: 40
Precision: 8
Logic: Algebraic
Display type: LED
Length: 146mm
Width: 76mm
Thickness: 35mm
Power Consumption: 1.000W
Power Source: 3xAA battery pack
Year introduced: 1978
YearDiscontinued: 1978

See other calculators by Radio Shack