How to build a temperature control for soldering iron?

[kidthorazine]

Is it possible to build a cheap temperature controller for soldering irons? What parts would be needed ? I have several soldering irons the lowest is a 15watt the highest is a 60watt and all are the pencil type. I would like to use it as part of a soldering station.

 

[(*steve*)]

It's not trivial. Probably cheaper to go out and buy one. I recall I have one that cost me under $50 on special.

 

[somanshumehta]

Just put a thermistor on your heating element,which will be measuring the temp and use a amplifier to amplify the signals,now u have a analog voltage ( 0 to 5V).
now u need to calibrate your thermistor,please refer to the datasheet for details.

 

[Druzyek]

"Just put a thermistor on your heating element"

Can you please elaborate?