12v to 3v step down

[Driftit 1951]

Hey guys. I want to run my little Go-Pro camera in my race car from the 12v mains. It runs on 2x AAA batteries.

It has already been slightly moddifed to run like this.

But I dont have the the rest of it.

Can anybody help me here? Or suggest somewhere to go. I asked the guys at Jaycar. But the guy was more interested in spading this horrid looking female.

[mark247 38]

http://jaycar.co.nz/productView.asp?ID=KC5...mp;form=KEYWORD

[Andrew 30]

Hey I have a Go Pro also - can you hook us up with pics of how they did the mod?

[Driftit 1951]

Awesome cheers Mark.

Well Mr Babb came up with a very simple design that works great.

Two wooden dowels the same size and length as the AAA's and a positive and negative wire. As simple as that.

Will go and see Jaycar again tomorrow afternoon and get that kit. Will post some pics.

Edited September 9, 2009 by driftit

[mark247 38]

Awesome cheers Mark.

Well Mr Babb came up with a very simple design that works great.

Two wooden dowels the same size and length as the AAA's and a positive and negative wire. As simple as that.

Will go and see Jaycar again tomorrow afternoon and get that kit. Will post some pics.

I didn't actually post that. My mate, 320guy who is now banned from here, did. I left my bimmersport account signed in on his computer hahaha.

Im not that helpful haha

[mr E34 11]

If you use those adj regulators might pay to put a 3.6v or 4.2v zener diode across the output once you have set the pot to 3v, use an accurate digital meter & seal the pot with a dab of nail varnish so it doesn't change with vibration etc.

The zener diode is cheap protection, if the voltage goes too high it switches on & clamps the voltage.Ask at Jaycar how to hook it across the output if you can't find info.