Author Topic: Welcome new members, come say hello and tell a little about yourself :)  (Read 13786 times)

Offline prabhatkumar

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Re: Welcome new members, come say hello and tell a little about yourself :)
« Reply #80 on: March 27, 2020, 08:25:16 PM »
Hello there everyone !! I am prabhat and I come from India. I am a first year electronics engineering student who has great interest in this field but I know very little . I am trying to learn a lot of things from places like YouTube and Google and also tried building some small projects . I have had built a small 100 watt induction heater which works quite well. The latest one being the sstc 3 from kaizer site itself. And i have opened 2 threads regarding the same out of which one is completely resolved . I had passion for this field for a long time but due to lack of theory knowledge in this field I get stuck many a times and thats when I need this forum's members help. My best wishes with everyone during this covid  -19 outbreak
 Stay safe !!

Offline robg

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Re: Welcome new members, come say hello and tell a little about yourself :)
« Reply #81 on: April 26, 2020, 12:37:25 AM »
Hello - my name is Rob. I've been designing custom analog bipolar and CMOS integrated circuits for 28 years. I've done chips for everything from military to toy trains to medical equipment. DC to GHz. I now live in Montana (USA) and work as a consultant. 

 The high voltage world is a total departure for me. None of my chips have ever exceed 500 mW. Most are less than 1 mW.  I have very little experience with power electronics like IGBTs or even discrete components. 
 
Four years ago my son, who was 13 at the time, saw Electroboom's Tesla Coil and wanted to build his own. While we could duplicate Medhi's poor results, we wanted more. My son actually gave a lot of good ideas that advanced us to where  we got much stronger arcs but had a problem blowing up transistors.  As an aside, it turns out that you can be a very well respected electrical engineer for nearly thirty years, but if you smoke up the house *just once* your wife makes you work with a fire extinguisher by your side. I tell her I now put fuses in all power lines, but she is still tense when I'm working on this. 

Covid-19 has given me time to resurrect the project. Although I do now have a single transistor design that can produce 10" arcs reliably, I still blow a lot up trying to improve the performance. I wish I learned about TVS diodes before last week and saved a lot of transistors...


Offline johnf

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Re: Welcome new members, come say hello and tell a little about yourself :)
« Reply #82 on: April 26, 2020, 09:04:42 AM »
Welcome Prabhat
as an engineer hopeful you have much to learn
you learn from your own mistakes ie working out what went wrong and doing it again with that mistake fixed and now looking for the next one.
you do learn a little from others mistakes, but your own are where the most learning comes from
Go out and experiment if you do not understand why it went wrong document fully and put it up here on this site, --the brains trust is sure to help

enjoy

Offline Rowdy

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Hello all, well I just read thru all the "Welcome new members " posts and have now understood why 4hv hasn't
replied to my registration, a few of them are here!! 8) To start with, I am 56 yo service tech for Phenix Technologies in Maryland. We manufacture High Voltage, High Current, High Power test equipment and components. Started learning about electronics about 9 yrs old, spent a lot of time at Radio Shack and reading their books, then more formal study in high school. Went into the military and got more formal study at TOFTOY
at Redstone Arsenal Huntsville, AL. My MOS was 27E, TOW/Dragon missile guidance technician. After military
I went to College and got my Associate Degree in electronics. My passion is HV and working on a frankenstein
SSTC that is mix of Steve Wards SSTC-5 and a few others. As I mentioned I am a service tech, I travel a great
deal around the world, and COVID has put that to a halt. So lots of time to get frankenstein spitting lots of PD  ;D. I hope to learn more from you guys and contribute to this forum. It's great to be here!
« Last Edit: May 24, 2020, 02:45:16 PM by Rowdy »

Offline Mads Barnkob

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Hello all, well I just read thru all the "Welcome new members " posts and have now understood why 4hv hasn't
replied to my registration, a few of them are here!! 8) To start with, I am 56 yo service tech for Phenix Technologies in Maryland. We manufacture High Voltage, High Current, High Power test equipment and components. Started learning about electronics about 9 yrs old, spent a lot of time at Radio Shack and reading their books, then more formal study in high school. Went into the military and got more formal study at TOFTOY
at Redstone Arsenal Huntsville, AL. My MOS was 27E, TOW/Dragon missile guidance technician. After military
I went to College and got my Associate Degree in electronics. My passion is HV and working on a frankenstein
SSTC that is mix of Steve Wards SSTC-5 and a few others. As I mentioned I am a service tech, I travel a great
deal around the world, and COVID has put that to a halt. So lots of time to get frankenstein spitting lots of PD  ;D. I hope to learn more from you guys and contribute to this forum. It's great to be here!

Hi Rowdy and welcome to HVF!

Great resume and I hope you will feel welcome and get all the help you need, looking forward to see a project thread about your SSTC.

Phenix seems to be in a great variance of fields, any specific you work in as service technician?

I would like one of these, if you happen to have one at work that is just collecting dust and is to be thrown out :D https://www.phenixtech.com/Files/Admin/PDF/40302_Ultra_HV_DC_Test_Systems.pdf
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics
https://www.youtube.com/KaizerPowerElectronicsDk60/join - Please consider supporting the forum, websites and youtube channel!

Offline Rowdy

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Hey Mads, LOL no we do not have one of those in the scrap pile, customers tend to have those fixed. Lots of money in one of those units. Actually I service and calibrate everything we make.

Offline Morvandium

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I'm Rob Kellner (you'll see my full name in my documentation if I post projects/schematics), but online prefer Morvandium.  I started taking apart electronics  around age 5.  My last formal education in electronics was 20 years ago.  I'm a bit of a jack of all trades/renaissance man -- I enjoy learning to solve new problems far more than perfecting my skills solving variations of the same problem.

A couple years ago I started Lichtenberg wood burning, and was disturbed by the horribly unsafe practices/equipment setups most burners used -- including stories of deaths.  That led me to building safer equipment, including a high voltage power supply (+2kVAC/-2kVAC/+2kVDC/-2kVDC outputs).

Many burners don't understand basic concepts of electricity, and couldn't explain, in physics terms, WHY they did what they did.  I looked to other high voltage communities for the theory/design -- something I enjoy even more than constructing a project.  I realized, while revising my power supply design (when adding the -4kV/4kV/ -8kVDC/8kVDC/ -12kVDC/12kvDC rails), a Tesla coil wasn't TOO much more work.  That led me here.

I enjoy the challenge of building using primarily scrapped or used parts, and the occasional liquidation/discontinued parts sale--though not to the point of idiocy or sacrificing safety.  I prefer durable, versatile and robust equipment.  Before I build a coil, I'm planning a variable-speed RSG, for use with both Lichtenberg wood burning (to make various rate pulsed DC to study effects on wood burn patterns), and later on for a TC.  I'm still deciding which approach I'll take for a tank capacitor/MMC, but realizing I might have to put some real money in there.  Since the TC will be more demanding on the tank, that's what I'll design for.

When it comes to SSTCs, I appreciate the circuitry and design far more than construction.  I do love poring over the schematics and love the near-perfect resonance they can achieve.  There's something primal about a cracking rotary spark gap that I enjoy, like a hammer on hot iron.  In my mind, SSTCs are to RSGTCs what giraffes are to rhinoceroses.  ;D

I also program in several languages and have an education in computer science, though I'm a bit rusty.  I love understanding things through the lens of physics, though I have to admit, as I was teaching myself about the physics of inductors and transformers, I realized I don't seem to learn as fast as I did 20 years ago.  I think I might be getting old, lol.

I've also done residential electrical and a little home automation work.  I'm an avid fan of quality documentation--I have a degree in English--though sometimes I have trouble staying concise.  See the last 6 paragraphs as an example.

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