>I think that in the long run your welding rods will be more expensive than the
>UV eraser. I'm still searching for one of those lights thay use at the bank to
>check the money for forgery.... should be cheapish.

Check the frequency of the UV. Only a certain frequency range will erase
the chip.  Same usually goes for photo-etch PCBs'.

(Been there, done that .. and failed) :-)

--
Jonathan Baker