Ersin "Multicore" and Kester "44" are he two major brands herew in the U.S. Both are (still) available in the standard 60/40 Tin/Lead mix, although other formulations are being phased in. The flux can be removed with regular denatured alcohol as well as more toxic compounds. (Just don't drink any of them! For many purposes, the flux doesn't have to be removed. (IMHO, of course; others will disagree, I'm sure.) It's non-conductive, and usually doesn't show signs of corrosion over the useful life of equipment. (Old HeathKits don't usually show signs of corrosion unless acid-core solder was used, and that shows up quite rapidly! The only time defluxing may really be necessary is in extremely high impedance circuits (it may absorb some moisture or otherwise uposet circuitry) or UHF and microwave circuits, where it may display additional capacitance not accounted for in the original design.
Don't make light of the hazards of lead (or any other heavy metal) exposure. The effects can be subtle, but particularly in young children, heavy metals (such as Lead, Arsenic, Chromium, Cadmium, and Mercury) can cause significant harm, and the effects are cumulative; the longer the exposure occurs, the greater the ultimate effect. And sometimes rather than presenting as frank toxicity, high levels can lead to serious health problems later in life including cancer or liver and kidney damage. Such damage is often misdiagnosed or diagnosed as "unknown origin."
I know in the past, we all were more careless with toxic materials, but now we know better, and we should protect ourselves and future generations as much as possible.
Doesn't the adhesive in duct tape cause cancer?
Anything THAT sticky HAS to be considered a hazardous material.
Yeah, kinda like those mercury filled cfl's the gov is gonna be forcing down our throats?
Originally Posted by [b
Wonder where all that mercury is gonna go from the millions of spent bulbs? Hmm
When I was in the navy I was TAD to the HAZMAT div. for a few months on the kitty hawk. The way we disposed of the flourecent bulbs is we had a machine that had broke them in to little pieces. It had a long tube where you would feed the bulbs in and at the bottom of the tube there was a spinning metal bar that would smash the bulbs. The pieces of the bulbs would then fall into a 55 gallon drum for later disposal.
Jason is tired of all the political correctness!
hear this far too often
Originally Posted by [b
still thousands of tons
of used and nos parts out there
see AM ops web sites
ops still building rack and panel jobs
the glow bug sites
ops building small rigs on metal chassis
and bread board
qrp ops building all kinds
of scratch build home brew gear
its easy simple and great fun
in last few years
built glow bug transmitters
# # ( just like Lew McCoy taught us many years ago )
found siting out for the garbage man
much of the modern junk
is just junk
now and then
there is a gem to be found
last winter found a tube tube tuner amp
in the trash
a gold mine of parts
can still buy brand new aluminum chassis
see listings for Bud and Hammond
in the Mouser catalog
NOTHING to stop a op from building
old style tube gear or new style solid state