Uploaded February 2012 | Updated September 2026, 2 weeks ago

---

Hi all

Sergdo is right, the torroid transformer can really melt steel

After the short test, the 4 paralleled and no heatsink transistors were almost cold

youpp it is amazing to melt steel with less than 10 watts

bravo Sergdo for sharing this

and what next ?? Don't hesitate to replicate, A contributor named JIMBOOT has already replicated with much less turns and it work he can light a LED 240 v with a single transistor and a 9 volt battery.

good luck at all

Laurent