In this video, I show the details of the design of a simple bar graph, I made some time ago,
I show the steps I take to design this circuit, this circuit functions fine for a quick design, however with better chosen values for voltages and currents it can be made to be more sensitive to input signals.
I will do another video, on a better design of a bar graph incorporating mosfets with bipolar transistors to give a better output visually,
but for now this circuit is a good building block to work with, for those who like to experiment with transistor circuits.