Some time ago I purchased one old, non-functional Dual CS-435 for pennies. I intended to use it for experiments, occasional cleaning of my records and for learning purposes (I mean disassemble and never put together again, as I was doing to my stuff when I was child
Turns out that the turntable was not in such bad shape as it seemed. Loosen belt, cartridge with stylus worn out so badly that the tip looked like a ball point pen, dust cover scratched all over the place but without cracks or deep cuts. So I decided to put it back to life.
Chassis is made of chipboard. On bottom plate there are several rubber feet placed in the "dish", one of them filled with sticky vaseline-like substance. Tonearm wire is soldered to small circuit board, and from there continues the wire with cheapo plastic cinch at the end.
DC motor is on the worst place I can think of, right between the arm and the spindle.