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Royal 12HTA (Royal Litton 12HTA)

The Royal 12HTA is a scientific calculator with 8 digits precision and algebraic logic. It has 25 functions, 37 keys, and a VFD (vacuum fluorescent) display. The power source is 4x1.5V cell.

Facts at a glance:

FeatureValue
TypeScientific
Functions25
Keys37
Precision8
LogicAlgebraic
Display typeVFD
Length150mm
Width85mm
Thickness25mm
Power Source4x1.5V cell
Year introduced1976

Replacements:

If you have a Royal 12HTA that is no longer working, you can first try replacing the 4x1.5V cell batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement:

See other calculators by Royal