How exactly is this supposed to work?

And If I clip a 9 volt battery up to my processor will it run better?

Real men don't use wussy 9-volt batteries. Real men use an extension cord with the female end cut off and the wires un-braided.

Sure, it seems like a great idea at first.

But then you end up with these running around:

The Soterix device is a constant-current circuit - a bit more than a 9V battery. Not a LOT more, but more. At any rate, 9V might not be enough to get you 2mA on dry unbroken skin, at least not at first.

Another issue is that the impedance of living meat changes as you apply DC, so with a fixed voltage supply you can't hold the current at one value - another reason Soterix uses a constant-current circuit.

There's some issues with DC causing metal ions from your electrodes to migrate into your skin, too. Probably not an issue with the rig Soterix provides, but you could get a metal 'tat' from a homebrew rig, or push whatever lotion-y crap you've got on your skin into it using a sort of half-assed iontophoresis.

Came for the deep fried Whorfin, leaving satisfied and smelling of ozone and bacon.

I have always believed that judicial use of a taser helps kids listen better. Now there is some science behind it.

I am totally trying this.

/_{on my cat}

It kills
Turn it off, Kip

You should try it with 120 volts AC...

//works a lot better when the current goes BOTH ways....

erewhon: The Soterix device is a constant-current circuit - a bit more than a 9V battery. Not a LOT more, but more. At any rate, 9V might not be enough to get you 2mA on dry unbroken skin, at least not at first.

Another issue is that the impedance of living meat changes as you apply DC, so with a fixed voltage supply you can't hold the current at one value - another reason Soterix uses a constant-current circuit.

There's some issues with DC causing metal ions from your electrodes to migrate into your skin, too. Probably not an issue with the rig Soterix provides, but you could get a metal 'tat' from a homebrew rig, or push whatever lotion-y crap you've got on your skin into it using a sort of half-assed iontophoresis.

Would magnets stick to this metal 'tat'?

CSS: In 8th grade, we had an electives class that was like a cross between woodshop and basic mechanical construction (we made our own circuit boards and housing for ham radios and RC cars). One of the genius boys in my class decided to figure out what would happen if he put a D cell battery (the kind with two prongs/connectors on one end) on his braces. Turns out what happens is he lost the ability to taste anything for a week, and his braces got so hot that it burned the insides of his cheeks and lips. Best part? His mom was the school nurse, so he had to explain to her what happened.

/We could hear her laughing at him from down the hall after we took him to her office.

untaken_name: Real men don't use wussy 9-volt batteries. Real men use an extension cord with the female end cut off and the wires un-braided.
THIS

buckler: IronTom: The electrons come in from the left apparently.

If the electrons came in from the right, would it make you more creative?

If they came in the back, would you see, smell or breathe better?

Naw if they come in the back, you just have to shower after.

;)

here's exactly how it works

"you know this hurts and I don't think it's doing anything, I think it's a load of bullshiat, I'm gonna stop doing this"

"see, you're getting smarter already!"

Original research by Drs. Lirpa Loof and Ima Kuak

If you're feeling a little adventurous, check out some schematics (new window)

NOTE: make sure to make a video of you using it, so it can be put on youtube if your head explodes.

I was thinking more like this

HelloMyNameIs: If you're feeling a little adventurous, check out some schematics (new window)

NOTE: make sure to make a video of you using it, so it can be put on youtube if your head explodes.

Not betting this would hit the current target for several reasons. One, your head's impedance is likely too large for a 9V to push 2mA through with unbroken skin, two the circuit they used (it's likely the first one they hit with a Google search for constant current regulator) takes some voltage drop across the regulator they chose before it'll regulate at all. More than they've likely got to work with. They should have put a milliammeter in line to see what they were getting.

Anyone know if I can use a normal TENS unit for this? (Around $100 on ebay, when you can find them...)