What model welder are you trying to fit?

I have a Thermal Arc GTSW 400 machine and the remote uses a 1K Ohm, 2 watt pot.
The remote has a 14 pin Amphenol plug.

Thermal ArcŪ part numbers 10-4015, 10-4016, and 600285
Fits Thermal Arc models: 130GTS, 150GTS, 160TS,...