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Inverter Circuit for Soldering Iron

Inverter Circuit for Soldering Iron

Assemble the circuit on a general-purpose PCB and house in a suitable cabinet. Connect the battery and transformer with suitable current-carrying wires. On the front panel of the box, fit power switch S1 and a 3-pin socket for connecting the soldering iron.

Note that the ratings of the battery, transistors T7 and T8, and transformer may vary as these all depend on the load (soldering iron).