Just saw this place - looks promising, but you'll have to pay quite a bit for hazmat shipping for a compressed gas I think: http://www.advancedspecialtygases.com On Fri, Dec 4, 2015 at 11:08 AM, Sean Breheny wrote: > I would suggest finding a local welding gas supplier. I think the small > shops are easier to deal with than the chains like Airgas, AirLiquide, et= c. > > I recently bought a 40 cubic foot cylinder of Argon for about $130, > including the cylinder (i.e., I bought the (used) cylinder too, not just = a > rental). I have not used it all yet but I was told that a refill would be > $40. You'll need a regulator, too, which I bought on Amazon for about $50= .. > > Argon is by far the most readily available because it is abundant in air > (about 0.75%). Argon is used as a shielding gas for MIG and TIG welding. = Be > sure you are getting pure Argon and not the more common Argon/CO2 mix. > Helium is also available at most welding shops since it is used for some > types of TIG welding. > > Neon is probably trickier since it has fewer applications. Looking back a= t > your message again I see that it seems that you specifically need Ne, Kr, > or Xe, not just any noble gas. In that case Ne is your best bet and it > would probably have to be from a sign shop as others suggested. Kr and Xe > are very expensive since they are extremely rare. I believe that the > typical price is about $100 for 1 cubic foot. Xe is used as a medical gas > for anesthesia - maybe a medical gas supplier? > > Sean > > > On Fri, Dec 4, 2015 at 9:41 AM, Denny Esterline > wrote: > >> Not sure. My first guess would be an industrial welding gas supplier >> (Airgas.com ?) >> Second guess would be as Charles mentioned - Sign shop. >> Either is strongly dependent on how much you really need. - likely you >> could pay them to fill your homebrew laser tube (just a guess) cheaper >> than >> buying a tank and regulators. >> And dependent on actually talking to someone. Several times I've had >> people >> just give me cast-offs that would have cost immensely if I bought them >> new. >> No use to them and I had a "cool project". >> >> -Denny >> >> >> On Fri, Dec 4, 2015 at 6:09 AM, Charles Craft >> wrote: >> >> > What sort of vessel/container would they ship in? >> > Can you purchase the containers, purge them and go to a local sign >> company >> > for the gases? >> > >> > >> > -----Original Message----- >> > >From: David VanHorn >> > >Sent: Dec 4, 2015 6:46 AM >> > >To: "Microcontroller discussion list - Public." >> > >Subject: [EE] Noble gases at reasonable prices? >> > > >> > >Not knowing the right terms is very frustrating. I am looking for lo= w >> > cost >> > >sources for neon, krypton and xenon in small quantities. Single digit >> > >liters. I am hiting numbers like $1K which makes me think that I >> must be >> > >asking the wrong question. >> > > >> > >Any ideas? >> > > >> > >Thanks >> > >-- >> > >http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> > >View/change your membership options at >> > >http://mailman.mit.edu/mailman/listinfo/piclist >> > >> > -- >> > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> > View/change your membership options at >> > http://mailman.mit.edu/mailman/listinfo/piclist >> > >> -- >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .