I have accidentally reset my wrist watch with severe EMI! I figure my coherent energy Tesla coil (single frequency from a vacuum tube (two 811A short wave high power transmitting tubes generating 600 Watts of power) oscillator exposed me to about 10,000-20,000 Volts per meter E fields at 300 kHz for hours at a time while I played with it. It was my 9th grade science fair project. Really strange things happened within several feet of that thing. I was fascinated by the effects. That year my science teacher excused me from class and gave me an automatic “A” grade for the class. I think he did not want a kid in class that knew more than he did….
Maybe that explains why at 74 years old I can run many miles at 115 degrees in the desert with no problem! But at least I don’t get big and green when upset. Doug Smith Sent from my iPhone IPhone: 408-858-4528 Office: 702-570-6108 Email: [email protected] Website: http://dsmith.org ________________________________ From: Manny Barron <[email protected]> Sent: Friday, August 27, 2021 8:39:40 PM To: doug emcesd.com <[email protected]>; [email protected] <[email protected]> Subject: Re: [PSES] My new Odysee technical channel That's the best reason! Although you may not be looking for it, maybe you'll stumble upon some new electromagnetic phenomena. Now that would be really cool ! About 30 years ago when I worked on Nuclear Hardening & Survivability (NH&S) for NAVSEA they had a testing facility that used very large capacitors to generate the high energy gamma dose that was focused on the components under test. The gamma dose is the first threat environment output that departs from a nuclear explosion, it propagates outward at the speed of light and can immediately damage the P-N junctions of microcircuits. This is not the EMP that eventually occurs later in time, but instead is a high energy gamma pulse, it's ionizing radiation. When the NAVSEA test facility released the energy from the capacitors the whole building shook and you just knew something violent was occurring during that very short burst. I wonder if you might generate a gamma dose, however big or small it may be. Just interesting stuff. Manny Barron EMC Engineer On Fri, Aug 27, 2021 at 3:04 PM doug emcesd.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__emcesd.com&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=kzdo2O4rtMnmIFqfnf9z-LMkl2riv3SHnJoSoaDIaog&s=6kE7emSoKRkaGwNsJlINNgkfVtC1NoCz2itC6Aa2ONs&e=> <[email protected]<mailto:[email protected]>> wrote: Because I love to play around with HV!! I have been fascinated with it for about 60 years now. Doug [https://lh4.googleusercontent.com/_HuR3Ky2TF_XhFHyxnYRmiq7nHQldnMsPNYFaLG6kb5T4y8MeCe-BDC_BscJtSFgszSSjssihHS-pjM3-jwNP8S0CwE-gN8fsRsPkojiAlmpBwb20vIVizS-siCUywW_jqrefbVr] ________________________________ From: Manny Barron <[email protected]<mailto:[email protected]>> Sent: Friday, August 27, 2021 2:20 PM To: doug emcesd.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__emcesd.com&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=kzdo2O4rtMnmIFqfnf9z-LMkl2riv3SHnJoSoaDIaog&s=6kE7emSoKRkaGwNsJlINNgkfVtC1NoCz2itC6Aa2ONs&e=> <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> Subject: Re: [PSES] My new Odysee technical channel Wow Doug, Very interesting science project. I'm curious, why are you doing this? Just because . . . or is there a specific purpose? I don't like HV, it scares me, especially when there are thick wires that can carry lots of current, pulsed or not. Well, except ESD, that's a coffee substitute in the morning to get your body moving. About 10 years ago we had to do MIL-STD-461 EMI tests on a HV military project inside a 5m semi-anechoic chamber. Because we had never tested a HV EUT before, a 20 page safety document became part of the test plan. Requirements: 1) only 2 test persons allowed in the chamber at any time and 1 must be AED certified, 2) the AED must be accessible within 1 minute, 3) a Sheppard's hook must be available immediately if needed, 4) special rubber gloves required inside the chamber, 5) special insulated shoes required for test personnel, 6) clear indicators that EUT is energized or not, 7) emergency Power Off switch must be easily accessible, plus numerous other miscellaneous HV safety requirements that I can't remember right now. Needless to say we were very cautious with everything we did during the test. No I don't like HV, it scares me. Good luck on your HV project. And be careful ! Manny Barron EMC Engineer On Fri, Aug 27, 2021 at 1:38 PM doug emcesd.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__emcesd.com&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=JjCcui3j_EHfd5vCQSYXejlN2P08H13TN_EUitv-Qls&s=MiSWCeIK7VbWsCvfQD05SjUB5V1VTAW8VLpsL9V7ie8&e=> <[email protected]<mailto:[email protected]>> wrote: Hi Bill, The other day I got the power supply, my interface circuitry, the capacitor, and the right length gap all to start oscillating as a relaxation oscillator at about 10 Hz (30 lb capacitor is rated for 360 pulses per second). It sounds like a machine gun! My wife says I should take it easy with this lest the SWAT team shows up. The pulse width is a few hundred nanoseconds, estimated. Trying for a more accurate measurement. Today a roll of #8 wire should show up from Amazon for me to make a 10:1 current divider. The capacitor stands almost three feet high with a large insulator, 13,500 pf @ 50 kV. It weighs a lot, at least 30 lb and since I don’t want to pick it up by the insulator, I have to drag it across the floor as there is nothing to grab onto to lift it. I got a few of them as surplus, being thrown out, from UNLV. Their EE department must be fun! I have been playing around with high voltage stuff since about 15-16 years old. My experiments back then generated so much EMI that the feds showed up at my house while I was in school. I would like to have been a fly on wall while they were talking with my mother. This was back in 1962. Currently working on constructing a Marx generator. Parts are in from Amazon (resistors and capacitors). If you don’t see anymore posts, you will know what happened. I still feel like I am 16! Same wonderment at physics. My lifetime hero is Nicola Tesla I am also like a 16 year old in that at 74, I am running a few thousands of miles per year. Even at 110+ degrees in the summer! Doug [cid:17b8a2838be4cd34f0f1] From: Bill Owsley <[email protected]<mailto:[email protected]>> Sent: Friday, August 27, 2021 12:13 To: doug emcesd.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__emcesd.com&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=JjCcui3j_EHfd5vCQSYXejlN2P08H13TN_EUitv-Qls&s=MiSWCeIK7VbWsCvfQD05SjUB5V1VTAW8VLpsL9V7ie8&e=> <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]> Subject: Re: [PSES] My new Odysee technical channel Typical lightning is about 300 million volts and 30 thousand amps. And if you are within several 10's of feet of a strike, it makes an impression. So a scaled down version is useful, like Doug's emp generator. Useful for imaginative coupling into various devices under test. Sent from Yahoo Mail on Android<https://urldefense.proofpoint.com/v2/url?u=https-3A__go.onelink.me_107872968-3Fpid-3DInProduct-26c-3DGlobal-5FInternal-5FYGrowth-5FAndroidEmailSig-5F-5FAndroidUsers-26af-5Fwl-3Dym-26af-5Fsub1-3DInternal-26af-5Fsub2-3DGlobal-5FYGrowth-26af-5Fsub3-3DEmailSignature&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=jCRzTaNQorPZq38xZ6lIGQ&m=sp2-iZpIiLm92XEmcPXBIBJpjhPwJBr6W8MUBrfUEC0&s=iulfSxZNFywm7IvVze4oy1MTcH3xq_vR9a2ZQN0Zjys&e=> On Thu, Aug 19, 2021 at 10:55 PM, doug emcesd.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__emcesd.com&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=JjCcui3j_EHfd5vCQSYXejlN2P08H13TN_EUitv-Qls&s=MiSWCeIK7VbWsCvfQD05SjUB5V1VTAW8VLpsL9V7ie8&e=> <[email protected]<mailto:[email protected]>> wrote: I am not sure of the peak power as the peak voltage and peak current are likely offset in time some. Doug Smith Sent from my iPhone IPhone: 408-858-4528 Office: 702-570-6108 Email: [email protected]<mailto:[email protected]> Website: http://dsmith.org<https://urldefense.proofpoint.com/v2/url?u=http-3A__dsmith.org&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=JjCcui3j_EHfd5vCQSYXejlN2P08H13TN_EUitv-Qls&s=cKV-118yc20KRA74OkffzMCd8QWcfCeD2keZIVZLrF4&e=> ________________________________ From: Manny Barron <[email protected]<mailto:[email protected]>> Sent: Thursday, August 19, 2021 5:05:50 PM To: doug emcesd.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__emcesd.com&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=JjCcui3j_EHfd5vCQSYXejlN2P08H13TN_EUitv-Qls&s=MiSWCeIK7VbWsCvfQD05SjUB5V1VTAW8VLpsL9V7ie8&e=> <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> Subject: Re: [PSES] My new Odysee technical channel Hi Doug, Uh, let's see ... 1,000 A x 15,000 V = 15,000,000 W. Not sure about the gain or directivity but that's alot of power! Hopefully it's just a pulse or two in the microsecond range. And hope you're in the desert. Very interesting indeed! Manny Barron EMC Engineer On Thu, Aug 19, 2021 at 4:50 PM doug emcesd.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__emcesd.com&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=yIOvFk6eGOB4699DY_4xOSD2hAlHciioAbJQcS1DMq4&s=Mt-t26cldbDAs9JWcQmqSyxTZalpvFdvRFznV1zYiJo&e=> <[email protected]<mailto:[email protected]>> wrote: Hi All, I have created two new video channels over on Odysee. On https://Odysee.com/@Dougsengineering<https://urldefense.proofpoint.com/v2/url?u=https-3A__Odysee.com_-40Dougsengineering&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=yIOvFk6eGOB4699DY_4xOSD2hAlHciioAbJQcS1DMq4&s=T7nCFm0nceIbZS02TODVqJX3_RzqmkcsuFG-dohJ6Dk&e=> I will be posting technical videos as well as copying over my YouTube technical videos there. New content will only be posted to Odysee though. I am currently working on a new video using my home built EMP generator. Nothing like a 1000 Ampere, 15 kV high voltage pulse to spice up the day! I am also working on a Marx generator to get extremely high voltage pulses as well. If you don’t hear anymore from me, I may have been vaporized. On https://Odysee.com/@Dougshealthandrunning<https://urldefense.proofpoint.com/v2/url?u=https-3A__Odysee.com_-40Dougshealthandrunning&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=yIOvFk6eGOB4699DY_4xOSD2hAlHciioAbJQcS1DMq4&s=HX_bRwuehlJJFdUFi9Z-tdVKbEKV4Y8LR0VEj0erMqE&e=> the content has nothing to do with engineering but will contain my health related videos, topics like diet, supplements, and running/exercise. (I am at about 1500 miles of running in 2021 so far at age 74, much of it at 110 degrees F in the Southern Nevada desert this summer.) Each channel now has one video with lots coming soon. Some of the engineering videos are snippets from the demonstrations of my seminars, including the virtual ones coming up shortly. Doug [cid:17b8a2838be4cd34f0f1] - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]<mailto:[email protected]>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_emc-2Dpstc.html&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=yIOvFk6eGOB4699DY_4xOSD2hAlHciioAbJQcS1DMq4&s=ZmZ2vEmKoO4KIm2kpljaTrGCZNBEpySx5EJ7cR41r4g&e=> Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/<https://urldefense.proofpoint.com/v2/url?u=http-3A__product-2Dcompliance.oc.ieee.org_&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=yIOvFk6eGOB4699DY_4xOSD2hAlHciioAbJQcS1DMq4&s=ndz8TPVlE5aBfGmFxKsakyEoWHQtRSgwHpZDlez3c_8&e=> can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=yIOvFk6eGOB4699DY_4xOSD2hAlHciioAbJQcS1DMq4&s=-O6uRX2ukTzfacrqcaVL3kshLp--VWj6v37HXNhWIJ4&e=> Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_list.html&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=yIOvFk6eGOB4699DY_4xOSD2hAlHciioAbJQcS1DMq4&s=Y89mLQRpv6J1f95QAfld1LTjYEWP_lL7xr7k8ZzUppU&e=> List rules: http://www.ieee-pses.org/listrules.html<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_listrules.html&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=yIOvFk6eGOB4699DY_4xOSD2hAlHciioAbJQcS1DMq4&s=p--0SDUuHmqlBnX0ExW6MDjrSyqtTsyt3msO1fM4fMI&e=> For help, send mail to the list administrators: Scott Douglas <[email protected]<mailto:[email protected]>> Mike Cantwell <[email protected]<mailto:[email protected]>> For policy questions, send mail to: Jim Bacher <[email protected]<mailto:[email protected]>> David Heald <[email protected]<mailto:[email protected]>> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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To post a message to the list, send your e-mail to <[email protected]<mailto:[email protected]>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_emc-2Dpstc.html&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=JjCcui3j_EHfd5vCQSYXejlN2P08H13TN_EUitv-Qls&s=P1lxZQ3U5GOVPcdg23IK2gZGhjW4ufuw43FDi2RPcCc&e=> Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/<https://urldefense.proofpoint.com/v2/url?u=http-3A__product-2Dcompliance.oc.ieee.org_&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=JjCcui3j_EHfd5vCQSYXejlN2P08H13TN_EUitv-Qls&s=IY8x4cxDUitnjlaB4WrpLUMzQgCUc_eX-ep8IqUAi6E&e=> can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=JjCcui3j_EHfd5vCQSYXejlN2P08H13TN_EUitv-Qls&s=7Gr2wd_qxWcthwdktcD4mKcQrDCpa3Yo8G1wls2QzrA&e=> Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_list.html&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=JjCcui3j_EHfd5vCQSYXejlN2P08H13TN_EUitv-Qls&s=hHuGEi6zWZaGChnMpItPj6QObkwb6JCuDR-vUA_DQzY&e=> List rules: http://www.ieee-pses.org/listrules.html<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_listrules.html&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=c9NR2mGfldry-2pM9Bbuww&m=JjCcui3j_EHfd5vCQSYXejlN2P08H13TN_EUitv-Qls&s=Vj4lGxwFlW3rfkCmWSdHiKt1l1Dr6JesYf2bnGX8aLw&e=> For help, send mail to the list administrators: Scott Douglas <[email protected]<mailto:[email protected]>> Mike Cantwell <[email protected]<mailto:[email protected]>> For policy questions, send mail to: Jim Bacher <[email protected]<mailto:[email protected]>> David Heald <[email protected]<mailto:[email protected]>> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
