From your Wiki link:

Quote Originally Posted by Wiki
Cigarettes are also a significant source of cadmium exposure. Although there is generally less cadmium in tobacco than in food, the lungs absorb cadmium more efficiently than the stomach
With billions of smokers around the world, poisoning the air with cadmium, it's a wonder we're not all dead by now!

And what about the stuff that's in our food? If ingesting cadmium is more dangerous than inhaling it, then why are people not dying every day from the effects of cadmium ingestion?

I understand and appreciate where you're coming from, but I'm afraid that until I see some clear evidence, and statistics showing the likelihood of an LDR preamp to 'burst', in the way you describe, I'll continue to consider using them.

Marco (not one of life's 'worriers' or a panic merchant)