I’ve been thinking about this on for a while. I even considered this as a Retrochallenge but I grasped the nettle and just did it.
I now have a SCSI2SD card adapter on my PDP-11/53 running RT-11 🙂
I could show you pictures but there’s nothing to see really.
This is the rather excellent page that told me how and this is where you can get your own adapter from.
This is what it looks like… Yea!