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Rockwell 61R ADVANCED SLIDE RULE

The Rockwell 61R ADVANCED SLIDE RULE 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 leather-effect carrying case.​

Facts at a glance:

Type Scientific
Functions 21
Keys 20
Precision 8
Logic Algebraic
Display type VFD
Display size
Printer
Length 156 mm
Width 84 mm
Thickness 24 mm
Weight 278 g
Power Source a sealed 3.6V NiCd re-chargeable battery pack with 6V charger
Country Mexico
Original price $80.00
Est. current value unknown
Year introduced 1974
Year discontinued 1975

See other calculators manufactured by Rockwell.