Looks like I bite off more then I can chew.
Lots of interesting ideas here.
Thank you gentleman.

 

My design, your feedback from everyone is invited.

Go means start the sequence. Fwd. Stop,Rev. or until you press the end switch on the opposite side, not the same side as the LED. if not , it goes in the opposite direction or until either end switch is pressed. But only reverses if the correct end switch is pressed. The end switch is normally not momentary but I differentiated it to a momentary Set or Reset.

The 10 Meg across each cap. is internal leakage and redundant for ceramic.

That's a very interesting circuit you made there. I didn't know Falstad had motors to simulate. Very cool.

 

a way to either double an analog rpm signal off negative side of automotive coil or a way to convert a low voltage 0-5v square wave signal to a 12v analog signal. see my only thread for more details I'm getting desperate for a solution.

 

a way to either double an analog rpm signal off negative side of automotive coil or a way to convert a low voltage 0-5v square wave signal to a 12v analog signal. see my only thread for more details I'm getting desperate for a solution.

Isn't a square wave to sine convertor just an RC filter or a series of filters?

 

a way to either double an analog rpm signal off negative side of automotive coil or a way to convert a low voltage 0-5v square wave signal to a 12v analog signal. see my only thread for more details I'm getting desperate for a solution.

Use an LM2917 tachometer IC. That is a very linear RPM to voltage converter made for that exact application. I have used quite a few and the linearity is impressive. Even better, the LM2917 includes a voltage regulator for use with the automotive 12 voltsystem. Just use the circuit in the application note. The LM2907 is the same IC but without the regulator, I never used that because of buying the 2917 in a stick package. (28 pieces)