On Wed, 18 Oct 2023, Tom Hunter wrote:
I was unable to locate schematics and/or a maintenance
manual for the
Unibus M7846 RX11 floppy controller board.
On our FTP server ;-)
ftp://computermuseum.informatik.uni-stuttgart.de/dec/pdp11/RX11_EngineeringDrawings_13Jun1975.pdf
Christian