[Jewelry making - Article 00102] - Re: [Orchid] Modifying air acetylene to propane torch

[Katherine Palochak]

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>         He got it from Thunder Bird and as it is out of the package I
>     don't think it can be returned. It  has a single tube and it is the
>     design I want so the question is can this be converted to propane?
>     Is there a converter for it ? If not should I use it? Or is it to
>     hot for small soldering? And were would I get the acetylene to use
>     with it? 

    Being familiar with T-Bird, you probably got a Prestolite, which is
    a mixed air/gas torch. Although made for acetylene, it is frequently
    used with propane, but the hose has to be replaced on a more frequent
    basis. Propane does not get as hot as acetylene, so they get around
    that problem by using a brass blow tube to introduce more oxygen into
    the base of the flame. As long as you don't have to do delicate work,
    the Prestolite works fine. It's still widely used in the Southwest
    and what comes out of the hands of the local craftsmen is both a
    testament to their skill with a torch and the effectiveness of the
    torch. Although I'm pretty much a Lil Torch addict anymore, I still
    use my Prestolite for a good many things (quick disconnects on my
    tanks). There are times when you need a broad, gentle flame rather
    than a tiny, intense flame. Get the tips at least up through a #4,
    and if you intend to work with heavy pieces or cast, then you need to
    invest in more tips and a blow tube. 


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