jcuadra
Newbie level 5
Hello gents,
I'm trying to weld a thermocouple wire to a TO-220 tab. Anyone done it successfully?
I tried charging a 560 uF capacitor up to 400V, with one side electrically connected to the TO-220 tab, and the other, to the thermocouple wire, then touching the wire to the tab to get a big arc. I get a pit, but it doesn't stick. I tried the same thing, sticking the thermocouple wire to a piece of 12 gauge stranded wire, and it stuck nicely. I wonder if the problem with the TO-220 tab is the thermal mass.
My wire is Type K... I just ordered some type T, which is solderable. I don't know if I can solder it to the tab.
Anyone use a small welder successfully? I wonder if this small resistance welder would work:
https://www.amazon.com/Pulse-Welder-Battery-Charger-0-1-0-2/dp/B01MS27R08
Cheers.
I'm trying to weld a thermocouple wire to a TO-220 tab. Anyone done it successfully?
I tried charging a 560 uF capacitor up to 400V, with one side electrically connected to the TO-220 tab, and the other, to the thermocouple wire, then touching the wire to the tab to get a big arc. I get a pit, but it doesn't stick. I tried the same thing, sticking the thermocouple wire to a piece of 12 gauge stranded wire, and it stuck nicely. I wonder if the problem with the TO-220 tab is the thermal mass.
My wire is Type K... I just ordered some type T, which is solderable. I don't know if I can solder it to the tab.
Anyone use a small welder successfully? I wonder if this small resistance welder would work:
https://www.amazon.com/Pulse-Welder-Battery-Charger-0-1-0-2/dp/B01MS27R08
Cheers.