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Re: [TCML] Before and After



Thanks, I know the need to have a good ground.(I enjoyed your post of forgetting to connect up the ground :). I was asking like I have one 10 foot copper rod into the ground and I get great 60 to 70 inch sparks with what I have. Is digging up my yard and laying copper all over or some of the other exotic ground schemes going to be worth it. My coil is supposed to do 60 to 65 inches at 120ma, Why change or mess with the ground if that is all you can get anyway.  I would like to see video of a 1 rod ground verses 10 rods. I just don't think it is worth digging up my yard. I have did several ground test, flat ribbon, braded ribbon, solid copper, metal under the coil and used my whole metal car port as ground. Still get the same good results as my 1 rod braded ground. Just would like to see before and after. I do enjoy trying to make a difference. Later and thanks 

-----Original Message-----
From: Tesla [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of Terry Oxandale
Sent: August 25, 2020 11:50 AM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Before and After

 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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