The Grand Master was an early electric stage lighting control system, using resistance dimmers and mechanical operation via levers, wheels, shafts and gears.
As a part of my research, I have created a ‘virtual’ (software) Grand Master, that you can download to see how the original control system worked:
- The Read Me file.
- The software (for Macintosh OS X, universal binary for PowerPC or Intel).
- The software (for Windows 2000 or more recent). Note that this is completely untested, and may well not work correctly. If you are interested in a tested Windows version of Virtual GM, please contact me.
- The source code to build the software using REALbasic.






