> On Jan 3, 2017, at 4:15 PM, Chuck Guzis <ccl...@sydex.com> wrote: > > On 01/03/2017 12:57 PM, Cory Heisterkamp wrote: > >> Once I can make sense of the timing tracks, I think I'll proceed with >> this. Not sure how I feel about using a micro-based solution though. >> Just seems wrong : ) -C > > > If enough working heads can be found, the drum probably can be > remanufactured, as according to this: > > http://miriam-english.org/files/drum-computers/drum-computers.html > > the drum was nickel-chromium plated, not ferric oxide. This is what I > would have suspected, as coating equipment and binders would probably be > a far cry from modern technology back then, where precision plating was > already an established art.
Metal alloy plating seems common in fixed head disks also, at least in the ones from DEC I have seen. Making a new drum sounds like a great class project for an ambitious machine shop student. paul