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Re: EMP => PULSED PHONE DESTRUCTION!

Hi Sam,
         Some thoughts FWIW:

> Original Poster: "Sam Barros" <sambarros-at-hotmail-dot-com> 
> 
>   Hi, everybody, check this out:
> 
> 
>  Yesterday I connected 2 capacitors, rated for 2500V, 1.1uF, in parallel 
> to my 2300V, 0.5A microwave oven transformer. I connected their outputs 
> to a home made spark gap that consisted of 2 very large steel bolts 
> mounted on an insulated metal base. The capacitors take a fraction of a 
> second to charge up and their discharge makes an almost continuous arc, 
> that sounds like a 747 taking off (that thing is LOUD!!!). They'll melt 
> and vaporise anything, and are as bright as an arc welder.
>  Anyway, buy spacing the gap to about 2.5mm, I could get the gap to fire 
> only once, when I flipped the switch. It sounded like a rifle going off. 
> A LOUD, dry sound, that could be heard echoing away like thunder.
>  Well, to make a long story short (I'll not go into details on how you 
> can use this to turn worms into fireworks or explode water and thin 
> wire), I got a call from a friend in my cordless phone. In the middle of 
> the conversation I said: "Hey, Listen to this!" I put my earmuffs on, 
> placed the phone 20cm from the gap (a little more than half a foot 
> distance), and fired it dry. There was the loud noise. I took the 
> earmuffs off and said: "So, what do you think"? There was no reply. The 
> phone was permanently destroyed by electromagnetic pulses that induced 
> high currents on its circuits and fried the chips.
>  I must admit that it was quite a stupid experiment, and I knew the 
> potential danger of EMP. But I never expected it to be THAT powerful.
>  I found out that if a different phone is moved away to, say 1 or 2 
> meters, it will automatically shut down when the gap is fired. At 4/5 
> meters it will make static noises and the interference stops at 10 
> meters or so.
>  Since Tesla Coils use a circuit very similar to this one (discharging 
> large capacitors trough spark gaps), they should have similar effects. I 
> have never seeing any mention of this anywhere, but perhaps the 
> interference produced by TCs is due to their spark gaps, not the 
> secondary. I am sure at least some of it is...Perhaps shielding the 
> spark gap with metal would reduce the interference produced by the Coil. 
> Has anyone ever tried this???
>  Give me your thoughts on that...
> 
>  Sam.
> 
>  P.S. You can use solar panels to detect EMP...

There is something of a difference between that and a TC in that the 
TC incorporates some highly selective tuned circuits. I did more-or-
less the same thing with a Marx bank once. Although there is some 
splatter from the TC discharges and gap discharge, the tuned circuits 
seem to save the day to some extent by concentrating energy into a 
narrow band or two. I also suspect in my case that a lot of EMP went 
to the destroyed equipment via the power supply and mains wiring. 
Both of the isolation capacitors in the supply were shorted.

Malcolm