It is a hand held generator with a voltmeter used to generate enough voltage to break down the insulation. You would connect one lead to ground and one lead to the electrical wiring. You would then hand crank the generator and the faster you would crank it the more voltage it would generate.
This device would knock you on your butt with just a small movement of the crank.
These stories were part of the drunken bragging that would take place every once in a while to build up your "bravado" and display what a badass eveyone was. They always referenced someone doing something that could not be verified and everyone knew it was all BS.
I'm not questioning that equipment was around to deliver painful levels of voltage. I was asking about phones being able to deliver such a jolt. The consensus is still not clear to me. If John effin Kerry meant, he saw people shocked by equipment, well, he's guilty of war crimes. If he meant he saw people shocked by phone equipment is it possible? Either case, he's guilty.
Megger or meg-ohm-meter device.
megger...insulation tester; it will get your attention.