Improve your Soldering Iron so that it lasts for many years, a very useful idea for work.

[@bertpascual4112]

Better to use a normally open push button switch so the default wattage is just around 30watts, and just press the switch ON to get full 60w for soldering bigger components.

[@sridharkrishnappanavanerth3388]

👍👍👍👍👍👍👍👍👍👍👍👍

[@examplerkey]

I think the polarity of the diode doesn't matter because the input is AC. I have a Weller that has no adjustment knob, so I have been switching it on and off from the switch like yours.