Results of Charting 19 Possible Switching Combinations

Here is the circuit I used for these experiments...

https://is.gd/3lamp_LMD5

And here is its slight modification based on these experiments...

https://is.gd/3lamp_LMD6

But before I finished my chart...

https://is.gd/chart_LMD5

...I played around with this little circuit...

https://is.gd/linear_LMD

Here is my simple LMD with shunt circuit...

Circuit...
https://is.gd/LMD_v1

I added a snubber circuit across each switch to protect against potential surges...
https://is.gd/LMD_v2

Before attempting to swap out the AC Power Source with a pulsed DC, I managed to convert one of the two Inner Lamps (acting as Load) to output DC using a full bridge rectifier...
https://is.gd/LMD_v3

Download any of these simulator files and save them to your computer, then load them into this simulator...

https://is.gd/blankcanvas