I'm a DEC-10 Simulator enthusiast. For 20 years I've wanted to have a TOPS-20 system to work with. Now, I have one. I run Ken Harrenstien's amazing KLH10 Simulator with TOPS-20 from Tim Shoppa's remarkable PDP-10 Software archive.
These represent work that I have done as I search the net for TOPS-20 source and build and install it. I'm happy to accept software contributions. I am not trying to duplicate what Tim has put together, but rather publish work I have done to get vintage computer software running.
I welcome contributions and bug reports. Please send to tops20@twilight.com. Note, I am not a TOPS-20 wizard, so I may not be able to help in all cases. My crutch for support are the good folks who post in alt.sys.pdp10
All software is in TOPS-20 DUMPER format. It includes source files and .exe. All of this software was built on a simulated KS10 under TOPS-20 V4.1 and run at least once by me.