On 3/8/23 13:53, Sellam Abraham via cctalk wrote: > On Wed, Mar 8, 2023 at 1:39 PM Chuck Guzis via cctalk <cctalk@classiccmp.org> > wrote: > >> On the subject of 1/2" open-reel tape, I note that the tapes initially >> used with the IBM 726 drive (1952) used a cellulose acetate base. In >> 1956, a switch was made to Mylar. That's unfortunate, since early >> existing 726 tapes have almost certainly rotted away due to vinegar >> syndrome. >> > > I have what appears to be a stainless steel UNIVAC tape. It isn't > crumbling away into dust anytime soon. > Heavy bugger,no? Nickel-plated Vicalloy (a type of phosphor-bronze).
--Chuck
