15C Collection
A collection of Hewlett Packard 15C calculators. From top left: an original 15C made in USA in 1982; a more used 1988 USA made version (one of the last original 15C's); China made 'Limited Edition' version made in 2011 (timed with the 30th anniversary of the financial version, the 12C); and the latest 'Collectors Edition' made in the Phillipines in 2023.
The Hewlett Packard 15C was the most powerful of the Voyager series of HP calculators. It was originally produced between 1982 and 1989. It was highly capable for such a small machine, programmable with numeric integration, root solver, matrices and complex maths.
Whilst its financial sibling, the 12C, has remained in continuous production since 1981, the 15C was dropped in favour of the Pioneer series of calculators in 1989.
15C Collection
A collection of Hewlett Packard 15C calculators. From top left: an original 15C made in USA in 1982; a more used 1988 USA made version (one of the last original 15C's); China made 'Limited Edition' version made in 2011 (timed with the 30th anniversary of the financial version, the 12C); and the latest 'Collectors Edition' made in the Phillipines in 2023.
The Hewlett Packard 15C was the most powerful of the Voyager series of HP calculators. It was originally produced between 1982 and 1989. It was highly capable for such a small machine, programmable with numeric integration, root solver, matrices and complex maths.
Whilst its financial sibling, the 12C, has remained in continuous production since 1981, the 15C was dropped in favour of the Pioneer series of calculators in 1989.