Homebrew PCBs

Hi all

I got this laminator for £10 today. I've opened it up and the control of the temp is by 2 thermal switches. These are in parallel so I don't quite get how they work.

They seem to have different ratings. One is stamped B115 the other B145. I have removed the B145 just to test the unit and it works great :D ......... just turn it off before the smoke gets serious!

A 1.6mm PCB with photo paper passes through no problem so all I have to sort is regulating the temp.

I hear that 135-162 Degrees C is the specific range for toner transfer. I have found a 160 Degree C thermal switch which is physically the same. I assume I need a NC type. Is this change quite as simple as I hope?

Any guidance hints etc gratefully received :D

regards

Fenris