Most Unusual Hardrive?

[Chrys ONeil]

https://www.youtube.com/watch?v=aBSEQmYTLMY

 

This is a 1977 Morley Evo-1 Oil Can Echo-Delay Pedal with a spinning anodized disc to create a delay sound. How did they make this disc? How does this even work? Could one use a disc from an old hard drive? Could Linus make one?

[Bombastinator]

1970’s tech.  Back in the day hard drives where a lot bigger and a lot tougher.  Over the years they were optimized to do what they needed to do and nothing else.  An old fashioned drive bearing might be able to handle those kinds of instabilities but I doubt a modern one would.