The Harris 50-10 is the one I would recommend. Once set, you won't have to change the settings, saving on wear of the valve seats. I have had mine since 1997.
The Harris 50-10 is the one I would recommend. Once set, you won't have to change the settings, saving on wear of the valve seats. I have had mine since 1997. View attachment 38832
Tip is interchangeable. You should have a multi-orifice casting and you can also use a single orifice for soldering. I think the 1390 H is the multi orifice for casting and the 1390 3N is the single orifice for soldering.