I inadvertently left the ground wire unconnected, and the immediate indication that I had done so when energizing the coil was a strong arc between the inner primary winding, and the lower turn of the secondary.
Terry
On Tuesday, August 25, 2020, 08:33:48 AM CDT, David Rieben <drieben@xxxxxxx> wrote:
Shaun,
It is my understanding that grounding of the bottom end of the secondary coil is more of a safety issue than an operational issue, although I’m reasonably sure that a single output ended secondary coil must have the opposite low potential end electrically attached to something. Classic single ended secondary coils will wreak havoc in most of the electronics in your house that share the same service drop with your coil if it's not properly grounded (and sometimes nearby sensitive electronic items still die in spite of the most Herculean grounding efforts). Not only are you dealing with the kickback transients generated by the operating coil, but also the intense electromagnetic fields. Most coilers incorporate some type of EMI line filtering at the input to their coils to help address the kickback transients and they just try to incorporate the inverse square law for the Electromagnetic fields by running the coil at a reasonable distance from sensitive electronics. Adequate grounding also complements this network!
David
Sent from my iPhone
> On Aug 24, 2020, at 10:46 PM, shaun <snoggle@xxxxxxxxxxxxxx> wrote:
>
> I see many, many post about grounding. Does anyone have any before and after
> pictures or videos. Did some testing and not seen anything different. Thanks
>
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