these probably get proc control vec drums Sent from AOL Mobile Mail
On Saturday, May 12, 2018 Chuck Guzis via cctalk <cctalk@classiccmp.org> wrote: Head-per-track drums were used on airborne radar setups as a non-computer use. John Meshna used to advertise military surplus ones, complete with 400Hz spindle motor. I was tempted at the time to get one, but was warned that the surplus ones are rarely functional. --Chuck