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Re: Lead Free (was Re: CD MMC caps from DigiKey...)
Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx>
It is sort of "really freaking spooky!!!!!........."
I was at King Supers, that giant food retailer, today. Maw had a
cold, so I went too to help push the cart around... The intercom's
normal "buy this and that" bantering... But then something really
"grabbed" me... The nice lady on the store's mic was talking of
Christmas wreaths and such... And then,!!!... how they had "lead
free" solder to help make wreaths and Christmas stuff with!!!!!!!!
I first, thought I had finally gone totally insane (hope
hope!!), way too much early morning Tesla list stuff... Maybe that
back pain med... (I blew out T4 in my back a week ago) But that was
just 200mg of Advil... Unlike the "Rush med", not a
hallucinogenic... I have a leaking O-ring on the fuel injected FORD
5.0L... Maybe them gas fumes... But no, it was true, They really
were talking about "lead free solder wire" over the intercom at the
grocery store today..... The King Super's intercom was trying to get
me to buy lead free solder, while I had a roll of just purchased LF
solder in my shirt pocket from Radio Shack!!!...
It really was some canned "read them this message thing", and her
voice tone gave away that "she" did not have the slightest clue about
why this "lead free" thing was so important over in the gifts and
crafts department... I never made it over to check it out... I
think "lead free" hit the crafts things market a year or two
sooner... One of those read this vendor's line" things...
But it now appears you can't even go get "grocery shopping" without
hearing about "lead free" ;-)))
It was pretty freaky(!!!!!!!!) since I had been posting about lead
free so much that morning!!!!
I wondered if I could somehow get her to mention that lead free
solder was good for "Tesla coils" too... (That "Mike Hunt" idea
thing... >:o)))) But maw was yelling at me about the %*%&%& cart not
going fast enough and all......
Mark, the issue is what was CD using for the cap's end connection
material for your coil.... I think they call it "sloopage"??? If it
was lead free back then too, then you win!!!!!!!!
I am happy this lead free thing is "behind" our hobby now %:-))))))))
At 10:02 PM 12/16/2005, you wrote:
I got some Radio Shack 64-025 and gave it a try. It is not bad at
all! It is higher temp, non-eutectic, little more brittle, has a
higher wetting angle, and does not flow quite as well. But those are
fairly minor things only someone odd would notice right off. It is
perfectly usable for most stuff!! One would have to watch out for
the higher temp on sensitive parts but other than that no much
difference! I guess I won't have to by a lifetime supply of Kester
44 RA ;-))
The silver might have a problem with surface mount caps and things
like that which are really sensitive to migration and them little
wiskers, but for most hobbyist stuff it is not a big deal.
Hopefully this, or better stuff, will appear in reasonable 1 pound
spool sizes soon since RS is sort of expensive ;-))
I didn't solder much for the longest time before using that RS
stuff. I had read numerous complaints about how difficult silver,
lead-free solder is to use, but experienced none of the headaches
myself. I guess it isn't just me, then! Perhaps I'm not so odd
afterall? :o) Oh wait... :b
It also seems to make a much stronger and more rigid joint than any
lead solder I've used. But I'm not certain if that's necessarily an
advantage or not. I wonder if RS has some 1 pound spools somewhere
if called? Certainly they have a supplier for their 1/2 oz blister
packs that would likely have larger spools available?
So it looks like Tesla coiling will be able to survive the Lead Free
thing :-))) I suppose the race is on to make the first "lead free"
Tesla coil :o)) I guess we should now add the following
I vividly remember reading early 2000 to use lead-free, preferably
silver-bearing, solder for all power connections in a TC (basically
the MMC), but I don't recall if that was on this list or on
someone's website. Therefore, my first TC in spring 2000 was
constructed entirely using lead-free plumber's solder (plus
plumber's flux - that was messy and un-fun). I built The Geek
Group's MMCs in Jan, 2001 using this RS solder. My current, nearly
finished TC is completely soldered using the RS solder. I don't
think I got the leadfree caps, though, so I can't claim to be the
first for a totally lead-free TC.