OK .. I got the on/off duty cycles (0.56 on 0.44 off, 8.3 sec period) from the video above. (Thx). The on/off period is too short to see if there is the exponential rise/fall of output.
The waveform is complex, so I analyzed it with ....
Hi Alan. As usual I admire your commonsense and empirical take on things. However I am afraid I don't understand much of what is going on in your spreadsheets. For instance is this a temperature waveform you are trying to model? What do the symbols like D and V12 mean?