Yeah a reasonably fresh 9 volt can have some kick…! 🙂 What I like to do is keep one or two rather flat ones around for testing LEDs, because it's convenient not to have to rig up a resistor for this. Also I almost always have an almost permanent arrangement ov this lying around the bench made with a few clip leads to use as a continuity tester. It's good cause sometimes a using meter on ohms for this produces more questions than answers…! hehe
I want to make some 'basic electronics' videos. How to work out resistor values for LEDs will be one of the first – this shows what happens when there's no resistor!
LOL
I came from the future to say an important thing for the people of 2013 the annoying orange dead
Hissy and smoky, I love that!
wow, you killed it…
that was such a bright LED!
Yeah a reasonably fresh 9 volt can have some kick…! 🙂 What I like to do is keep one or two rather flat ones around for testing LEDs, because it's convenient not to have to rig up a resistor for this. Also I almost always have an almost permanent arrangement ov this lying around the bench made with a few clip leads to use as a continuity tester. It's good cause sometimes a using meter on ohms for this produces more questions than answers…! hehe
I want to make some 'basic electronics' videos. How to work out resistor values for LEDs will be one of the first – this shows what happens when there's no resistor!
Hehe what did you do that for? 😉
It was blue
Was that a blue LED or a white one turned blue?