Old thread I know.
I bought one of these in ‘82 to go with my Electrohome ECM1302-2 RGBi monitor. With it, you could display composite video. The box would hook on the back of the monitor vents.
CGA graphics with more than four colours? MS-Flight Simulator looked great!
Pulling up this previous request as I too am seeking a copy of the TALLGRASS Software Disc.
The Tallgrass documentation (Thank You - Modem7) illustrates that during initial installation, the supplied Master Software Disc is used to create the Master Boot Disc that would contain the...
The 84 key model M pictured is not compatible with a 5150/5160 as is, it requires a 83 key XT class board. There are, of course, workarounds including numerous protocol selectable boards.
The model M supplied by IBM for the XT/286 and early 5170 was as pictured above but WITH the status LEDs.
Back in the day I had my ZX81 hooked to a 12” TV that is long gone. Thinking of doing the composite mod and buying one of these. Would be fun to see that Ready prompt again.