Local agricultural supplies has much cheaper dewar rent and LN2 than welding
gas supplier. Leaving plenty left over to freeze bulls semen.
Now thats even more off topic.
Peter
tesladownunder.com
-----Original Message-----
From: David Rieben
Sent: Sunday, November 09, 2014 9:20 AM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Air compressor quenching
Hi Jim,
At the risk of drifting OT, I must jump in here and ask how you are able
obtain 180 L of LN2 for ~$70 when I was locally quoted around ~$4.75/L a
couple of years ago! I happen to own a 111 L cryogenic container (not a
pressurized dewar, just a bio-specimen preserving cryo storage tank, with
the non-sealing styrofoam lid -- retails new for ~$3500 -- eBay special
~$200, including S&H) and I was trying to locate a local supplier of LN2
(just to have a little cryogenic fun) and received this "shocking" price
quote from a local welding supply jobber! Maybe I should've "shopped around"
a bit more, but I found that most industrial cryogenic liquid suppliers in
my locale were geared toward tanker truck quantity purchases of the cold
stuff, and were only set up to dispense it into a sealed, pressure dewar
tank. The only supplier that could accommodate my non-pressurized storage
dewar to dispense LN2 by the liter was the welding supply that was asking
nearly
$5/L! Needless to say, I quickly abandoned the idea of purchasing 50-100 L
(@ ~$5/L) of LN2 just to "have fun with", but I still have that 111 L
storage dewar sitting around ;^/