Fixing a super 8 projector from the 70s

Warning! Do not try any of this at home! Messing with internals of electrical devices is dangerous and can lead to fires, serious injury and even loss of life. My dad started using a super 8 film camera as early as 1967 (the system was launched in 1965). He stopped doing it in the 1980s as it became pretty much impossible to buy film. Ever since then the films have been stored in multiple…