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Voltage Regulators

Vendor's Description: 

5V Regulators

Being stupid I can never find out how much resistor and what do i know I would need to get my 7,2V Racing pack battery to turn in to nice 5V that my other components like much better.

Then what makes me happy is when some electronics is simple, like the 5V voltage regulator; You insert "whatever" into it, and out you get steady, steady 5V!!

Note that the large metal-plate is for cooling as it can get hot, so you can put a screw into the hole and put it onto some metal with a larger surface.. BUT! This metal must not be a part of the circuit, I tried that once, strange things happend, smoke..IMG_3397.jpg


Other types

Info on 3.3V regulators and suppliers can be found here.

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If you look at the front of the 7805, with the legs pointing down are your connections wired as input, ground, output, going from left to right? Also, what do you have connected to the output side of the circuit?

A red wire (the power) that should be 5 volts.

And yes I have input, ground, and then output.

are you trying to power anything, or is the output just disconnected at the moment? If so, everything else seems fine so you probably just got a bad part, or overheated it a bit when soldering.
it should also be noted that the part where you can screw the regulator to something else is in fact also a ground.

Yes, very much indeed!!

I melted a bot once, because I did not know this!