Electric OU: Tar Baby and the 555 Voltage Inverter / Timer, with a Puzzler……

Here I show the 555 timer + 555 voltage supply inverter running on the regulated external power supply, as well as the most negative 12 volt battery in the main stack. As you can see, in the negative going gate drive mode this arrangement works fine….. but there is something I do not yet understand. While I am exercising the feral canine, I’ll be thinking about it…. and I hope that someone with electronics experience can figure it out and explain it to me, as well.

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