Homebrew PCBs

And heaven only knows what is in there. Do use proper ventilation, but primarily for the flux, not for the lead. 


Well no. Pretty straight-forward to find out actually…  I use ‘colophony-free’ fluxed solder, which is supposedly less allergy-prone that rosin-fluxed solder.


On the subject of the lead, just where does it come from? The twilight zone? Er, well no. We mine it from the ground. I fail to see why it is so bad to put it back there, with due cautions, of course. Or recycle it: 

Not bad to recycle it, or to put it back where it came from.  Not so good to put it in unnatural concentrations. into the WRONG places though, .

geoff