@RueNahcMohr rue, you need to understand that there's a difference between something being technically possible and something being feasible.
The only municipal e-waste dropoff site around here is only open from like 9-4 Monday through Thursday, and it's about ten miles from my house.
I'm not going to go all the way over there to see if they have junk that I can bring home, open up, and look for optoisolators inside, then take all the way back to the e-waste dropoff site to get rid of -- just so i can try an experimental circuit you showed me on the internet.
@RueNahcMohr i remember years ago, back on twitter, you telling me to go dig a CRT TV out of the river bed so i could harvest some kind of transistor from it.
That's not not worth the effort!
{ Rue bows his head in shame }
I... cant *fit* anymore ewaste at home.....
BUT, if I could I would go to the thrift store and buy a $2 media player (or a computer power supply, but they dont turn up at the thrift store much)
OOOO yaknow, a hike where I look for e-waste would be fun, I wonder if I have any buddies who would be into that.....