I'm not sure of the validity of these but here are a few other options that are on vero.
http://electro-music.com/forum/topic-52774.htmlAnd here is another I found a pic of:
I think they are based on the same thing. The one on the link seems to have some troubleshooting following the pic.
Perhaps with the info and cross referencing the pics you may come up with a winner. Good luck.
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Set a man on fire and he'll be warm for the rest of his life.