Three closely related single-user versions of APL for Soviet clones of the PDP-11 were written between 1985 and 1988. APL/TSX runs on disk-based SM-4 and SM-1420 PDP-11 clones under TSX. APL-MICRO is a stand-alone ROM-based implementation that runs on the popular DVK LSI-11 clone and exchanges files with RT-11. In both, the  PDP-11’s  addressing limits the user workspace to 40K words. APL/85 is a disk-based system that runs on the Electrologica 85 and DVK-4 clones of the Pro 350 under RT-11; it uses mode-switching hardware to increase the user area to 64K words apiece for functions and data, and it has extensions for graphics and file access. Some systems have APL character displays, while others approximate APL characters with the local character set. All implementations are in PDP-11 assembler. With the increasing availability of powerful and inexpensive microprocessor-based personal computers in the Soviet Union, I expect these limited PDP-11 versions of APL to be mostly of historical interest.