G'Day,

in my quest to improve my heating facitlies in my workshop I'm considering
making a small air/propane torch. I've read about the small ones used by
some European jewellers (mouth blown propane torches) and I'm thinking it
may be possible to make a torch using propane,a nd compressed air.
Ideally I'd like to buy one of the small oxy sets, but it's out of my
budget.
So.... Has anyone got references or plans etc which could help me make a
adjustable valve for the propane? - I would just copy an air valve, but I've
read that propane is very corrosive and this poses a risk if it's not
designed properly.
ALSO.. Does anyone know what range of pressures a small propane/air torch
would use?
I'm planning on using a propane jet from a primus torch, OR obtaining a
smithy tip, for the tip of the torch.

Thanks,
Des
Oz