Tech Articles Tech Articles The following technical articles are available for viewing or downloading in Adobe PDF format. Plasma: a welding technique with a future Replacement & Care of Plasma Torch Parts Tungsten Electrode Preparation Low Amp Plasma Welding Check: list for contaminated electrode, dirty weld nozzles & plasma torch care Precision Welding of Intricate Components Microplasma Arc Welding Does The Unusual Microplasma Transferred Arc: for the Repair of Space Shuttle Main Engine Nozzle Tubes The Official Replacement for the Ultima-150 is here! The New SANPAW 150PW The Process Welding “WELD PRO” weld controller The Process Welding “DT-400” weld controller