Another one in my backyard only this week - something about adding lead to metal foils. Lots of kids with blood lead levels well elevated over the limits in the West. Dunno who sets the limits though and how realistic they are. Here there was a scare over phenol getting into the water supply. Turns out that the limits set are amazingly low - maybe under a microgram per litre, not sure. Then when I hit Wikipedia it casually mentions that Islay malts can have up to 100ppm.
I've just bought two half kilo reels of Cookson Electronics 63/37 leaded solder. It's lovely to use after having been using lead free 4% silver solder for a while. The biggest problem I've found with lead free solder is removing components during a project, that and the fact that the joints look shite. I might persevere with lead free in the signal path if I can discern a difference.
Lead in fuel was bad news, but as far as lead in solder is concerned I'm pretty much with you..
I hate the lead free stuff and as we are not obligated to use it domestically I don't.. (I go through a lb every few years and am careful how I dispose of electronics that have outlived their usefulness.)
"Islay malts can have up to 100ppm" another reason to avoid other than taste.
Just checked, I've only about 2 glasses of the attached left and the price has tripled.
The problem with the lead solder wasn't with the assembly it as with the industry of shipping e-waste to third world countries where boards are "reworked" over open fires,
Regards
James
Just checked, I've only about 2 glasses of the attached left and the price has tripled.
The problem with the lead solder wasn't with the assembly it as with the industry of shipping e-waste to third world countries where boards are "reworked" over open fires,
An externally hosted image should be here but it was not working when we last tested it.
, the hobby market really wasn't the target.Regards
James
Attachments
next up: dull cutting knifes. seems that an unexpectedly high number of children in the village are suffering from severe lacerations: they can't tell which side is the handle.
and don't get me started on the fiasco on switching mode power supplies.
Your young is obvious from your post, moving to lead free has been very problematic for the electronics industry, it is nothing to do with skill, but to do with melting point of solders, reflow temperatures, tin whiskers etc. I still struggle to get some assemblies made correctly, having to have all my BGA compoents reballed with tin/lead solder balls. Also ask yourself why high reliability designs have not moved to lead free. So I suggest before you make a comment you do some research into what you are speeking about.
Or to put it more succinctly, you are talking shi** as they say up north
Or to put it more succinctly, you are talking shi** as they say up north
read up on ESP's site about the ban for linear power supplies and incadescent lightbulbs
The learning curve is shorter for Pb-free. The good joints look almost as bad as the bad ones
Tsiros, it aint the fault of SMPS's if people laid them out properly and designed them properly they are not as bad as people make out, the fiasco is caused by the same people who banned lead solder, and the same people who wiped out California's PCB industry. Tree huggers who jump on a political point scoring band waggon that often has no bearing on real world requirements or conditions.
I have also seen big problems with linear supplies as well as SMPS's.
I have also seen big problems with linear supplies as well as SMPS's.