Re: Test: Bigger Secondary gives Bigger Sparks


It's interesting, I've build many coils on 10.75" and 6.625" diameters.  
They range in size from a few inches tall to 4 foot.

But even a short coil 8" or 10" tall and 10.75" diameter makes remarkable 
sparks, not only long sparks, but THICK sparks.

I love large diameter coil forms!


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