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Topic: [coffee] Re: +Checking the temp of an espresso machine (2 msgs / 39 lines)
1) From: Rick Farris
Greg, When you say "solder the two dissimilar metals together" are you
talking about good old 60/40 lead/tin solder like one would use to
solder electronic components?  I always thought you had to spot weld the
dissimilar metals.
-- Rick

2) From: Greg Scace
Yep.  That's  what I'm talking about.  You're right in thinking that what 
you really get is pair of junctions that are 1) metal A to solder, then 2) 
Solder to metal B, but in practical terms if the joint is small and the 
process that you are measuring is rather monolithic, like a portafilter 
full of hot water and coffee, then the solder cancels out and you mimic the 
spotwelded connection.   Makes it real easy to make loads of junctions 
without needing a spotwelder.
-Greg
At 09:45 AM 3/10/2004 -0700, you wrote:
<Snip>


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