Barbeque Gas

How can I regulate the pressure of gas comming out of a regular barbeque gas cylinder?

I'm trying to modify a CPU (adding additional transistors) using nitrogen gas (I know its dangerous but I've worked with it before in lab) (I'm a computer engineering major) '

Anyway my book says to "regulate the pressure with a jet assembly". Where can I buy a "jet assembly" to regulate the pressure comming out and how can I ensure it will be compatible with my gas cylinder?

Thanks

You may be a computer engineering major, but you have no common sense, or don't know how to read.

Nitrogen gas is only dangerous without a regulator OR in an enclosed area. Tanks have a right hand thread, regulators available at any welding supply.

"Regular barbeque gas cylinder" contains PROPANE not nitrogen, and it so states ON the gas cylinders.

Flammable gas cylinders ALL have a left hand thread (except the newer style valves on 30# and smaller, that have a left hand female thread and a right hand male thread, AND the "disposable" cylinders)

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