/diy/ - Do It Yourself

>>1269361
The coil thing acts as a motion switch. If you short it the heater will always be on and the tip will not live long. Without motion the heater shuts down after ln(2)*200K*100uF=14 seconds. The touch point (T) may or may not trigger depending on what else you touch. It's a toy iron that gets way too hot but has very little stored heat. A joint on a ground plane may let the tip get stuck.