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Re: [TCML] Fried It !



Just as a point - you don't need to hit anything directly - unfortunately electrostatics will do the job just fine.
Prior to getting kicked out of the garage for confusing my opener ( I had it fully faraday caged in 1/8" 
aluminum screen, sensors on  quick disconnect, power cord  and antenna would be pulled into the cage, 
3inch wide ground strap from the chain guide to a true earth ground, - still got confused
 needing a hard reset of the code system. She who will be obeyed decreed that I shall never more run inside. Ooops.).

 I observed a few things that indicate a pretty substantial ion cloud that both charged up 
external systems, and was persistent after the coil was off:

Item one: My rolling tool box, located approximately 8 ft from where I was running the coil would discharge 
from the bottom corner to ground once every 5-6 seconds. Touching it right after running was not
recommended.

Item two: Walking across the garage with a 4 ft fluorescent would cause intermittent flashing of the tube
for up to 3 minutes after the coil was shut down.

Note that this was in southern california during winter santa-ana windstorm. Cold, and very dry (about 50F and 10% humidity or less)

Imagine a similar build up on your device that then discharges to ground.

On Nov 8, 2010, at 11:21 AM, Miles Mauldin wrote:

> Hi All
> I’m getting better at tuning and squeaking performance out of my SGTC.  Last 
> night I was able to get multiple 30” streamers into free air and strikes to a 
> grounded rod at nearly 40”.  I have been worrying about killing one of the 
> garage door openers, and household electronics and computers, but knock on wood 
> to date nothing has been affected.  That is until last night.  Sad and funny at 
> the same time, of all the things I worried over none of them were affected.  It 
> was my irrigation system controller that got fried.  I say funny, but it was not 
> until this morning that I discovered there was a problem when I saw a river of 
> water flowing down the street in front of my house.  Further inspection in the 
> back yard revealed 3 of my 8 water zones were running at the same time.  One of 
> them is for the waterfall and pond to keep it replenished during the hot 
> summers.  Needless to say, the pond was flooded.  I had to shut off the water 
> for the irrigation system at the street because the only thing I could get from 
> the control unit was a flashing “ERR”.  Good thing it Fall here and I don't 
> really need to water for a while.
> Do we just take our chances coiling?  Or does anyone have experience protecting 
> electronics near / around a TC? Maybe ferrite Cores like 
> http://leadertechinc.com/ferrishieldproducts.shtml?_kk=ferrite%20core&_kt=7dfff0ae-33b0-45b1-b704-1bf2fc1d08ec&gclid=CM6pnff3kaUCFRhg2godtWjaMg on
> any wires that would act like an antenna?
> Watching for the water bill.....
> Miles
> _______________________________________________
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Michael Baumann
baumann@xxxxxxxxxxxxx



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