what is a shrapnel knob?

[CL Wong]

Yes, I've checked the archives.  Lots of folks have
them but haven't found any references on how to build
one and what it does.

I came across this article at autospeed and the phrase
'shrapnel knob' came to mind.  Is this the same thing?

http://www.autospeed.com/cms/A_0670/article.html?popularArticle

Looks interesting and I'd like to try building one for
my 20020v for kicks.


thanks

Chi

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