Here's a great new portable jewelers torch that doesn't require an oxygen tank or a bulky gas regulator.
The E-Z Torch pulls oxygen from the surrounding air, and uses a built-in preset regulator to control the gas flow, so all you need is a common disposable propane tank to do basic soldering jobs for jewelry repair or annealing. The Easy Torch comes with torch body, hose, regulator for disposable tank, and 3 tips and detailed instructions for use. (Disposable propane tanks sold separately). Operation temperature is 2400o F (1315oC).Remove torch valve from tank when not in use! Read instructions before use.