Old Control Data Tape Drives

Paul Koning paulkoning at comcast.net
Sat May 9 10:44:23 CDT 2015

> On May 8, 2015, at 11:51 PM, Billy Pettit <bpettitx at comcast.net> wrote:
> ...
> These were great tape drives.  The 604 was 75ips versus 150ips for the 607.  ...
> These would be a good choice for recovering old 7 track tapes.  They used vacuum tensioning columns and vacuum capstans.  So very little contact with the magnetic slurry side of the tape.

Vacuum columns done correctly — not like the IBM error of putting the tape down the column with the magnetic surface facing outward.  I remember that from our college 360 model 44.


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