One of my current projects is an induction heater, now in it's 3rd version (and V4 is nearly ready). I've now been able to melt silver crystals up to 5ozt, which is an improvement over earlier attempts. The blobs shown below were not poured, but allowed to solidify in the crucible. The current system is not quite up to pouring just yet. These are 1, 3x2, 3, 4 and 5 ounce ingots. (the black blob is 65%Au, 22%Ag, 12%Cu - it got hot, but didn't melt) [youtube]http://www.youtube.com/watch?v=73Zpaa2MiuE[/youtube] For those interested, this video shows both the melting (not very well, due to heat close to the phone camera), and describes the induction heater development system. My first attempt at a narrated and edited YouTube video. (and it shows!)
I just found a big old transformer I've had for a while, rated 240V in, 32V, 31A output, and l reckon I might have the beginnings of my own setup.
You certainly would. After rectification and filtering, that would give about 45VDC, which is about what most ZVS drivers want. And there's no shortage of amps there!
