Hi,
I just bought a Weller LR 21 solder iron, however, are in need of the pin configuration of the plug that goes into the solder station (WECP-20).
Also, I have measured the resistances on the pins and there's an 11.4 ohms resistance between pin 1 & 2 - which corresponds well with being the heater element (50 watts at 24 VAC), however, no resistances appear in any combination of the three remaining pins ?? Any of you know what the PTC resistance should be?
Greetings,
Jesper