On 05/16/2018 11:13 AM, jos via cctalk wrote:
Visited an older collector recently, and in his shed
he
has a strange thing, labeled CDC, that somehow looks like
a drum memory, but then again not ( drum looks too small
to be usefull )
The controller that goes with is a transistor based
monster on countless small pluginboards.
Pictures on ftp://ftp.dreesen.ch/Unknown_CDC_Stuff
Yes, it is a drum, for sure. Seems to have a LOT of heads.
The controller may be a regular disk controller, or can be
used with both. I noticed an "on cylinder" light on the
panel. But, it should be pretty easy to repurpose a disk
controller to handle a head-per-track drum.
Jon