Ahhh Diego, if only. Yeah we are all good at knowing what we should have done, but that's how it is.
I don't have any figures on the amount of gold on those strips. I have lots and lots of them, my wife is a diabetic so an unending supply. From my own research, it is reckoned that gold plated fingers from computer boards contain .006 grams of gold per gram of close cut fingers. So that is 6g of gold per kilo of fingers. Okay, at today,s prices, that 6g would equal about $300.
In the electronic recycling game it's all about volume. Apart from CPU's, the best value comes from gold platted pins, and computers and associated gear are full of pins. Even the plugs on telephone cable has them. Based on the above, pins contain .0088 grams per kilo of pins. So a kilo of pins would return approx $440.
Gold is where you find it. I get it out of computers, telecommunications stuff, even cars. The air bag set ups have gold pins in the end of them where they connect to the loom. Telecommunications gear is generally high quality, especially if you ever come across and old stuff. The control box on internet satellite dishes have two boards and one side of each is basically all plated. Don't get many, but never pass them up. Even the control box itself is made from zinc, which is worth about the same as aluminium, so no waste there.
But you make a good point about collecting for longer before you get into processing. At least make your time and trouble worthwhile. To be honest, my current collection is probably valued at around $5k. The pins and other plated metal I will process in a sulphuric acid cell, very easy to set up and works a treat. From there you still have to move to AR to do your final refining. On my trip to Brisbane next week I will pick up a new supply of Sulphric. I've got nearly 4k of pins at the moment so that's worth around $1700. Now that is worth the time and effort. Add to that all my other GP metal bits, yeah time to refine.
Just for interest sake, I'm retired and I do a lot of recycling in all that spare time I've got
.Also keeps me fit. But just as a warning to any other would be chemists out there, please remember, playing with the acids required to do refining is bloody dangerous. I can explain to anyone the processes to do this refining, but I won't. I would not like to put my name to anyone's injuries or death. Am I sounding a bit over the top? Well that's good, because it's meant to be. I'm sure Diego would agree with me.
Anyway, Cheers all
Bill