I have recently got 20 NE555p ics, and from what I found are the same as the commonly known 555 ic. I have tried sooooooo many simple oscillator designs for at least 3 hours it’s not even funny. I just cant figure out what Im doing wrong. Most circuits are very similar with only a slight resistor change. Here is one that I have tried multiple times on my breadboard. although it’s not the variable design I assume I can switch a resistor for a potentiometer. If anyone can provide some input on the design or an alternate schematic you will save me a lot of stress.