WELLER EC2002 Soldering station LF353N soldering control circuit and SL443 integrated power control based on the indicators provided by the triac TIC225M 7-segment display section 3 (MAN71 A) CA3161 used to drive the circuit diagram and PCB drawings are... Electronics Projects, Weller Soldering Adjustable Temperature Control Circuit "power electronic projects, " Date 2019/08/02