Re: Neutral Spike Re: [EVGRAY] Vehicle audio - Wikipedia

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Warren,
Check out this video on the safety of cell phones.George

The Dangers Of The 5G Wireless Network & What You Can Do

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The Dangers Of The 5G Wireless Network & What You Can Do

Wireless radiation represents one of the greatest environmental, health and safety issues of our time! Wireless ...
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    On Wednesday, 28 November 2018, 2:59:33 am AEDT, Warren Keillor [email protected] [EVGRAY] <[email protected]> wrote:  
 
     

OleYou have made a very astute observation regarding the health concerns. Can you imagine the industry push back from cell phones? If you think Donny Trump spins, wait until they haul out their big guns in the public
relations departments, of cell phone companies.If the public embraces the health risk, we will be back to using Napoleon's semaphore towers.I hope they are not so bad, these cell phones, since my computer is still  not unpacked, and set up since moving. I have been just using this damn cell phone.Cheers Warren
Sent from Yahoo Mail on Android 
 
  On Tue, 27 Nov 2018 at 8:26 AM, [email protected] [EVGRAY]<[email protected]> wrote:       
Hi Norman,

I would prefer something that's not as harmful as those high power energy discharges. I remember Wolfgang Volkroot warning about microwaves and high energy discharges. Volkroot was chief of a Siemens high energy test lab and saw his coworkers doing the high energy discharges become sick when working with those EM radiating events for years. He also warned about microwaves that made the forests between the then East and West Germany die in straight lines where there were microwave links and powerful radars pointing to the east and west blocks. His opinion back then was that this was getting solved by using fiber optic links instead of microwaves. He should have known the coming revolution in mobile phones which now have microwave transmitters almost everywhere. It was said that enough data to know if mobile phones are harmful would be gathered in 20 years. Haven't we reached that time span now and what is the conclusion? If they're harmful will they be made illegal or is it up to the users to decide for themselves.

Conclusion is that I would prefer to avoid those EMP events and use something less harmful. The EMPs may harm other things then sensitive electronics. Humans don't have senses to fell electromagnetic radiations except for the one octave optical range and perhaps one or two octaves of of infrared radiation. Thus we can't feel the radiation if harmful or not.

Regards
Ole



---In [email protected], <nwootan@...> wrote :


PLEASE, all, we are trying to enhance,purposely provoke andattempt to capture the event, NOT mitigate or prevent it fromhappening.   In all of the studies of the Ferroresonantphenomenon, all effort is to prevent, mitigate the effects.  Whydo you insist on using solid state devices or circuits which needprotection.  Just like the Russians who still use mini vacuumtubes in critical EMP vulnerable aviation equipment, I would fallback to using the trusted Vacuum Thyratron https://en.wikipedia.org/wiki/Thyratron https://dbtubes.com/en/thyratron-vacuum-tube/     This wholeNeutral Spike (EMP event) study is to prove that an extra ordinaryform of energy is manifest at the point of magnetic fluxannihilation (In the plasma of the arc).  It is called thereconnect phase. The preponderance of the knowledge of thissubject has been the study of the magnetic ropes (plasma) of thesun and the EMP burst from the annihilation/reconnect phenomenon.The old saying, As above so below certainly applies here for theseplasma conditions have been accomplished in research labs to proveout exactly what happens.  Run with what we have learned byapplying the info in your device design and methodology.   Asstrong as a blacksmith anvil.

On 11/26/2018 7:21 PM,onielsen@... [EVGRAY] wrote:


 
Hi Mick,

TVS diodes are rated for some max power dissipation andperhaps some max energy too (fusing energy I^2t). Ifapplying more energy than the max i^2t rating it melts. Asbeing fast Zener diodes they clamp the voltage at somelevel while having current through them at the same timewhich means power dissipation in them. If reading EMC(EMI) theory several stages are needed to protect forpowerful EMP transients. The first step is a spark gap.The spark gap is followed by a varistor that is followedby a TVS or Zener diode. The spark gap breaks down to lowimpedance which reflects or dissipates much of the energyof the signal. The varistor is a solid state spark in somemetal grains and has the same purpose as the spark gap.the TVS or Zener diode stage removes the rest of theenergy to protect the sensitive electronics. It isessential to know how the electromagnetic radiation istransferred between the different stages to prevent itfrom reaching the sensitive electronics. Every currentloop transmits the energy as a very penetrating magneticfield. That magnetic energy has to be dissipated orreflected which can be done with electrical conductivematerials like iron or aluminum. The field induces currentin the screening material which requires only connectingthe circuit inside the screen to a single point. Audioguys probably have experienced this when buildingamplifiers.

A thyristor (SCR) crowbar is also a good protection. Itshorts the pulse just like a spark gap and then blows afuse to disconnect the circuit to be protected..

Regards
Ole



---In [email protected], <mkjekyll@...> wrote :


Hi Norm, 


This paper is one of your excellent references.


I would like to replicate the events through theplasma that Iachieved as it creates a huge magnetic pulse that canbe harvestedbut as you say gets to kill the solid state stuff asif the TVSdiodes were not even there. At least the ferroresonantamplification without the plasma gap just cooks theTVS diodeslike popcorn even though rated at 1000 amps with onlyabout 2 amp23v input, but spared the rest, I guess it chose atthe diodes tomanifest.  Oh yeah the ferrotranny was connected with30 guagewire wrap wire when the 1000 amps TVS diodes explodedfrom 46w andwire was fine. Have not built the tube circuits yetjust workingon the solid state grid control circuits first thenplan todecouple with something similar to cascode sohopefully thesuperfast gate driver does not cook.  


Not sure if Ole's snubber network would stop theevent but havethe feeling so since caps will suppress the rise timeand killringing, but have not tried so can't say.  Seems to methe eventis created right at the switch and the rise in voltageis like theinertia x acceleration before the end of a whip cracksandnecessary.  





"Why does death need time?  Death needs time for whatit kills togrow in."




On11/26/2018 4:44 AM, Norman Wootannwootan@... [EVGRAY]wrote:


 
Precisely, Bob Paddock.  Please read thisdocument tounderstand that a local plasma event mustoccur (Arc inthe gap) for the manifestation of this energy.Pleaseread:  http://www-brs.ub.ruhr-uni-bochum.de/netahtml/HSS/Diss/TassiEmanuele/diss.pdf

On11/25/2018 7:36 PM, BobPaddock bob.paddock@...[EVGRAY] wrote:

 
> Why not replace the relay with aswitchingtransistor. Mechanical switches wear fastcompared toa semiconductor switch.

What if the Arc/Spark is part of theactual process ingetting more energy?

Every O/U thing I've ever though workedusually had aPlasm or Arc/Spark.
Usually not intentionally and the designeralwayswanted to get rid of it.