[old_tv_nut]

Originally Posted by Telecolor 3007

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Instruction for 16 m.m. projectors (1959) - school, yeah: https://www.youtube.com/watch?v=8UgRJ4V6H8M

I am watching this and just stopped at the point where they show cleaning the lens by putting a drop of fluid on the lens - NO, NO, NO! Applying fluid to the lens could allow it to flow around the edge into the interior surface where it cannot be cleaned off. You should always dampen the lens cleaning paper slightly with fluid and clean the lens with the damp paper.