You guys are pikers;I wish that I had kept the OLD hard drive that was in some surplus stuff in the 1970s!
This platter portion of this drive was about 10 inches across,and 5 or 6 inches high ,round like a BIG Danish cookie tin;there was an attached electronics and wiring block ,all neatly laced and soldered to terminal points(not printed circuits).Belive it was ex-Air Force.
Sold it for $1 at a ham radio flea market just to get it from underfoot;this was before home computers became popular.Still have a few strips packed away from old computer that used vacumn tubes,several tubes and dozens of resistors and capacitors on a narrow metal chassis !Hundreds or even thousands of these strips were plugged into racks to make up ONE computer.I was present for the decommissioning and dismantling of a IBM computer that was cooled by pumping chilled water through 1 inch piping inside the computer.Liquid cooling in a big way!
