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Re: Question regarding PCB board in close proximity with Primary Coil (DRSSTC)

Original poster: "Karl L." <karl@xxxxxxxxxxxxxxxxx>

Hi Dan,

Your idea to illuminate the primary supports is novel. A "modded" coil. Surely you can inductively power the led's from the primary?
Just a thought...


On May 7, 2006, at 7:26 PM, Tesla list wrote:

Original poster: "Daniel McCauley" <dhmccauley@xxxxxxxxxxxxxxxxxxxxxxxxxx>

Here is an interesting problem I am currently facing with one of my projects. Basically, i have a tesla coil with 6 primary polycarbonate supports which will be illuminated via LEDs (from underneath the base as shown in the attached image)

Now, i would ideally like to use a PCB board to mount the LEDs and this PCB board would then screw directly underneath the base where the LEDs would protrude through the base and up into the bottom of the primary supports. This keeps everything nice, neat, and compaq with out having six million wires all over the place.

However, the problem is that i am not quite sure how the board would act in close proximity with the primary coil which is only about 2-3 inches above this PCB board.

Option 2 and 3 both seem to be the worse of the group since they will couple with the primary like a shorted or partial turn, respectively.

Option 1 seems like a possible alternative, but i'm not sure how that would work. And Option 4 with the flying leads may be the only feasible option.

Anyways, what are your thoughts on Option 1?

Any other thoughts or ideas you may have???

Again, my concern isn't how the PCB board would affect performance of the coil but rather it is the concern of induced noise onto the PCB board which would screw up the control voltage powering the LEDs.

Attached image shows application and possible options for PCB board