I’ll let the pictures speak for themselves for the most part. This is a cabin pressurization controller for a Boeing ??? (Believed to be early 737).
Click to drop its knickers to the floor.
All the dials are linked to the indicator wheels, switches or pots via these cool aluminum gears or sprockets with rubber (gone bad) over stainless belts.
Switch wafers are porcelain, with chunky solid silver button contacts!
Precision potentiometer peeking out proximal to precise penmanship.
No idea what kind of caps these are.
Are these — are these ICs??!!
This post goes out to RJ who’s having a rough time right now — keep looking up, the future holds great things for you — maybe even more of these. (I bet the belt rot is what gets em…)