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My dead welder has mosfets labeled as TOSHIBA K2837. After an extensive 3 week search, I found data sheets with conflicting information. Until today, I could not know which ones were accurate. Now, I know why no one was able to offer help. Several sheets showed K2837 with exact specs to the...
My Chinese made (SUPER-200P model) welder’s field tube inverter board got fried. I need help identifying a replacement for it. Problem is that the welder has no schematic and it is analog and older. Also, the transformer on it is labeled as Ei28 15:7, and all other replacement boards now have...
For a multiprocess welder, I cannot find compatible replacement mosfet and their resistor parts. Of the (12) twelve K2837 mosfets and the (12) twelve 1.9 ohm 1/4W +/-0.25 tolerance resistors across them, the board fried 2 mosfets and the 2 resistors across them. Two problems… Can anyone please...
I have a project. I am a NOVICE. I would really appreciate obtaining guidance. The following is where I am with my project. I was given a multiprocess welder. It has a fried Upper Power Board. There are (2) two fried mosfets with part number K2837. There are also (2) two fried resistors. The...
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