All that thing is two pieces of carbon conduction elements that uses the
piece that needs soldering as the circuit short causing the heat, there is 6
volts DC between the two ends.
Oh by the way, the tip does get HOT and will burn the **** out of you after
soldering for 5 seconds., even after 20 seconds of cooling off. In the
commercial it shows a guy touching the tip right after using it. His fingers
must have been soaked in cold water first.


"Professor" wrote in message
oups.com...
Well... you guys can play around with your little toy soldering iron.
I'll continue to use my http://www.hexaconelectric.com/thermo.html

Professor
www.telstar-electronics.com