Karter - I've got to agree with 2Slow. Something wrong here. Are you isung a power panel or a poratable glow driver? A portable (1 cell) unit CAN"T overdrive the plug and if it has a meter you will usually be able to spot a bad plug. I have NEVER had a bad out-of-the-package OS plug.
If using a power panel:
1. turn down the power.
2. attach a new plug.
3. While watching the plug closely, slowly turn up the power until you get the glow you want. Don't over do it.
4. Remember the setting and don't go over that reading for that series (#8, A3 or whatever) of plug.


UnLucky Armpit - sounds like you just ran too lean and burned out the plug.