RK8-E disk controller
From Computer History Wiki
The RK8E was the PDP-8 Omnibus disk device controller for the RK05 disk drive.
The boards which made up the RK8E were the M7104, M7105 and M7106.
The RK8E was the PDP-8 Omnibus disk device controller for the RK05 disk drive.
The boards which made up the RK8E were the M7104, M7105 and M7106.