My tech career came out of the mainframe world, so I'm tickled but really not too shocked at seeing a 3390 teardown. I've replaced enough parts in IBM DASD fram

My tech career came out of the mainframe world, so I'm tickled but really not too shocked at seeing a 3390 teardown. I've replaced enough parts in IBM DASD frames to be a bit jaded I guess. But there's nothing better to make you feel old than some of the eevblog comments about "I work with a guy that's old enough to remember these things..." :-( 1989 wasn't THAT long ago... was it?