OK, here are some photos of the gear.
First the resistance soldering tweezer hand pieces. The tweezers for soldering are on the left, those for wire stripping on the right. To use the soldering tweezers, you squeeze the pieces to be soldered between the tweezers, push the foot switch which sends a high current trough the work, instantly heating it. You then touch the work with solder, release the switch, let the joint cool for a few second and you're done.
The wire stripper works the same way. You squeeze the wire between the two flat tips, push the foot switch until the tips melt through the wire insulation, pull the wire to remove the insulation, release the foot switch, and you're done. This does no damage to the wire, which is the point.
I bought this equipment many years ago when i was heavily into model railroading and building much of my own equipment, including turnouts and even signal towers and bridges. Much of it was made with etched brass, and it would have been impossible to solder it all together without resistance soldering. All this stuff is made by American Beauty (
American Beauty Tools). It's expensive, but over the years it's been a great investment for me, since I do do much DIY kinds of things.
The next picture show the basic unit (essentially a heavy duty transformer, the two tweezer units, and the foot switch.
The final photos shows my solder pencil unit -- a nice device from Radio Shack that provides control of the tip temperature up to about 750 degrees, I think. This is great for conventional soldering needs.
