I’m making a pendulum clock as a hobby and I found this thread which describes a simple circuit to avoid having counterweights on my clock. I would have liked to try it but my experience in electronics is limited
https://www.instructables.com/id/Ele...etic-Pendulum/
The attached images indicate the schematic from the above link and the transistor I found in Amazon and I would like to know if the transistor is the correct one. Assuming the transistor is ok, out of the 3 terminals on it which one would be the + or - ?