I'm working on specifying parts for the following circuit:
I intend to have a very large work coil, (like 12" diameter) so I'm expecting to need a lot of power. I'm on a tight budget, though, so power is the tricky part for me right now. What I'm trying to do is figure out how much power I can get to the work coil for under 500$.
Looking at low-profile transformers online to start with, I found several that step-up the voltage a lot, but they have very low current ratings.
I'm not sure if that's an issue, though, because I expect that there won't be a high current-draw from the transformer. I'm thinking that the colpitt's oscillator and work coil will convert the changing voltage into a current for me, so I only need to worry about current on the transistors (or op amp) in my oscillator.
- Am I right that I don't need a high current rating at the transformer?
- Are my hopes realistic here (financially)?
- What's the danger of applying too high voltage to the work coil?
Thanks a lot!