Weller WSM 1 teardown finds DC driven iron

Weller WSM 1 is a 40w soldering station that drives WRMP soldering pencils with RT type tips.┬áInside you’ll find an LCD, a few ICs, and a few discrete components. It’s powered by a laptop power supply, and that the heater is driven by a DC/DC block. That sets it apart from the cheap AC driven […]