I had a similar mark to that thanks to a diode I was not paying attention to
it went away after a couple weeks, though the time I was pushing a 556 timer into some card stock and it seated in my finger hurt much worse
I had a similar mark to that thanks to a diode I was not paying attention to
it went away after a couple weeks, though the time I was pushing a 556 timer into some card stock and it seated in my finger hurt much worse