870 Technical Motor, 4.5V

870 Technical Motor, 4.5 V is a TECHNIC-themed supplementary set released in 1977. It includes a battery box, motor, cord, and some assorted gears, pulleys, plates and other parts.
== Notes ==
* This is the first TECHNIC motor set.
* This set is the same as 960 Power Pack.
* It was replaced by 8700 Power Pack
*Although rated at 4.5V, the motor can tolerate a certain amount of overdriving up to 12V (using a 7864 transformer) but it will eventually fail. The mode of failure is the shaft will overheat and melt the plastic axle, causing it to break.
== External links ==
Category:TECHNIC
Category:Supplementary
Category:4.5V
Category:0000 sets
Category:1977 sets