The same 2.5KVA power rating?I bought a new one from Grainger in 1982 to reassemble my CS. The existing tips would not fit into many places that I needed to weld. I bought some extra tips and ground them with an offset center so I could make spot welds on the tops of the fenders, and in other tight places.
Yep. Have been to that thread and learned a bit about my machine from it. I am still concerned that the Model 33 unit I have has too much horsepower for the sheet metal. I found a chart that describes the proper time duration for the panels. It comes out to 8 cycles per weld. I don't think the 63 year old vacuum tube timer and pretty worn relay contacts that I tried to burnish, but..., has enough precision to repeat the 130 millisecond on time reliably. We'll see.Hey Stephen - There is a forum specifically for Miller spot welders: https://forum.millerwelds.com/forum/welding-discussions/570169-older-miller-lectro-spot-model-11-spot-welder