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Re: Tube Tesla Coil



Hi Mark, all,

> I am working on my first tube coil and would like to know how
> tightly I should couple the primary to the secondary.  I have
> looked at some TCBA News designs, and the coupling appears to be
> pretty loose (probably less than critical coupling).  Any comments
> on this from the experienced crowd?

Tuned primary or untuned? If tuned, it has already run out of steam 
if critically coupled or less in its unloaded state. If untuned link
coupled, the concept of criticality doesn't apply.

Regards,
Malcolm