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:

Feature Value
Type: Scientific
Functions: 21
Keys: 20
Precision: 8
Logic: Algebraic
Display type: VFD
Length: 156mm
Width: 84mm
Thickness: 24mm
Weight: 278g
Power Source: a sealed 3.6V NiCd re-chargeable battery pack with 6V charger
Country: Mexico
Original price: 80
Year introduced: 1974
YearDiscontinued: 1975

See other calculators by Rockwell