Alright, I got a bunch of 5mm or T1 3/4 LEDs. They need a max of 5volts at 30 or so mA.
I want to make a circuit to put in something. AA batteries run at 1.5 volts... A little more most likely. I am wondering what I need to make this circuit work. I already blew one up hooking them to batteries. I understand I need 100 ohm or so resistors, but my dad said I didn't... So, I'm looking for more advice.