The size of the material has no effect it is the total weight, takes more to melt a pound than an ounce.gold refined from e-waste after passing through chemical process .raw ,aterial will be like fines form
If this is to make money why not do it with the correct thing? Did you read all of the things the man in the link went through before he found one that worked? He blew up a few made like yours until he found what worked.One more thing sir the transformer involved in this circuit is 12v 70 ampire as u told the current gradually increases but my case no latched on 6 amp it self