Assuming that you still have those sliding secondary coils to facilitate
coupling adjustment, can you slide them while the coil is running and see
if spark length strictly diminishes with lower coupling, or if there are
any peaks or nulls along the way?
Gary Lau
MA, USA
On Mon, Feb 18, 2019 at 1:50 PM Douglas Johnson <doug379306@xxxxxxxxx>
wrote:
> Here is another video of the adjustable coupling. original primary was 10
> turns .060 wire, this primary is 4 turns of 1/4" copper. Both primary's are
> 5" total diameter. Performance is much better!
> Doug
> https://youtu.be/mXPoXpcY0so
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