Radio Shack EC-4001 (Programmable)

The Radio Shack EC-4001 is a programmable calculator with 8 digits precision and algebraic logic. It has 19 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V. Note: Sinclair Cambridge Programmable

Facts at a glance:

Feature Value
Type: Programmable
Keys: 19
Precision: 8
Logic: Algebraic
Display type: LED
Length: 102mm
Width: 51mm
Thickness: 25mm
Power Source: PP3 9V
Year introduced: 1977
YearDiscontinued: 1978

See other calculators by Radio Shack