The TT plugs were the next request from Whirlwind. They wanted TT plugs that were solderable, weren’t wire specific, and were shielded… and by the way, “it would be nice if you could put two next to each other in a patch bay”. That last requirement made it a little tricky. Standard threads wouldn’t fit, but fortunately CNC’s don’t care if it’s a standard thread. We made it work.