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Rockwell 61R (ADVANCED SLIDE RULE)

Rockwell 61R

The Rockwell 61R is a scientific calculator with 8 digits precision and algebraic logic. It has 21 functions, 20 keys, and a VFD (vacuum fluorescent) display. The power source is a sealed 3.6V NiCd re-chargeable battery pack with 6V charger. The calculator was manufactured in Mexico. Manufactured in Mexico for Rockwell International, Anaheim, California, USA. Supplied with charger and cloth carrying case.

Facts at a glance:

FeatureValue
TypeScientific
Functions21
Keys20
Precision8
LogicAlgebraic
Display typeVFD
Length156mm
Width84mm
Thickness24mm
Weight278g
Power Sourcea sealed 3.6V NiCd re-chargeable battery pack with 6V charger
CountryMexico
Original price$80
Year introduced1974
Year discontinued1975

Replacements:

If you have a Rockwell 61R that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement:

See other calculators by Rockwell