I've been trying to put together a relatively simple electrical circuit to heat an electrode to 750 degrees celsius. In theory, is it simplest to persist with using several car batteries (not those to be used in a car) in series or to use a step-down transformer to heat either by induction or conduction?
Using batteries (24vdc), the 8 AWG jump leads seem to get too hot, with the graphite electrode only getting to 190 celsius. Using a toroidal transformer I put together, it seems to reach saturation and just not work.
Also, would stainless be better than graphite given it's lower heat capacity?