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High Voltage shenanigans

I thought it was about time to post these videos ive made so i did! my very first forum post!

Topic by The 4th Doctor    |  last reply


High voltage suggestion

Anybody have any suggestions for what I should do with some high voltages. I don't want to make a taser, cause it could kill and I have no need for it. I don't want to make a jakob's ladder. anyone have any cool ideas?

Topic by guyfrom7up    |  last reply


High voltage beer

Whilst browsing the net doing some research, I came across this video.Watch the fluid currents created by the electrical currents.Cool.(And, please, no comments about wasting beer - it looks like it's only a lager.)

Topic by Kiteman    |  last reply


Micro High Voltage

I'm going to attempt to make a super micro tesla coil that is 100% contained (unless it runs off of like 12 volts dc, then I'll use a wallwart). Of course, one of the i biggest problem is the power supply. So this is what I'm asking, what's the best way of ramping up the voltage? A tiny toroid transformer? An inductor that gets pulsed? Voltage Multiplier? Something with static electricity? Some type of Inverter? Using Greinacher Cascades? A marx generator hybrid? Other stuff I havn't heard of?

Topic by guyfrom7up    |  last reply


High Voltage Ground

I'm starting to work with high voltages again, but for real this time. I just built an ignition coil driver, using a 555 (and I got an ignition coil), but my 555 broke (the texas instruments ones can only drive 15mA, oppose to the normal 200mA, oops) so I have to go buy one today. My main question is what to use for ground, whether it be for an old screwdriver for arcing sparks or the secondary of a tesla coil. I was originall just going to use the 3rd prong of an outlet, but somewhere on the internet I heard this could destroy all surge protected power strips and destroy all plugged in electronics at your house. I, of course, do not want this cause... well... I'd be screwed. Is this true or not? Can I use the 3rd prong?

Topic by guyfrom7up    |  last reply


phototransistor for high voltage

Before the begining sorry for bad english I want to make laser tag with electric shock when hits This is circuit of taser what I want to do is remove the switch and replace with wire so that the taser can charge automatically then I want to put a phototransistor(that react to red laser) to the poles(where you get shocked when touch them together) but because the both poles are attached to bodies the taser can't be charged so I tried to block one side of pole with phototransistor but when I touch the two poles phototransistor burned(?) and I got shocked in this case what can i do?

Topic by hyeok205    |  last reply


High Voltage Amplifier

I am trying to build a high voltage amplifier that will amplify an AC signal of approx. +-5V to a signal of approx +-100V.  I was looking into building a common-source amp using JFETs or a common-emitter amp using BJTs, but both seem to have an output waveform of 0V to +100V.  Is there a way to modify these amps to have an output waveform of -100V to +100V?   Also, if anyone has any better Ideas, please let me know. Mark

Topic by questionmark05  


high voltage transformer

I found a flybacktransformer and I would like to sale it. its is nice and heavy built and would have a better duty cycle than one of the newer ones. I would like to get $12 for it. finding a flyback like this one is not always too easy. I added a mug to show the size of it.

Topic by inductionheat!    |  last reply


High voltage NOT gate Answered

I am creating a circuit and I need a not gate to run 20 3v 20mA LEDs. The only problem is that to run all of those LEDs (4 series circuits in parallel, if that will help) I am using 18 volts (2 9v batteries in a series). My circuit is compact (,think fitting inside an Altoids container) so a relay wouldn't work. So I need a high voltage way to make a not gate. I can read schematics if that will help you explain it, but I do need you to mention the ohms of the resistor. Thanks a million!

Question by GenAap    |  last reply


High voltage DC voltage doubler? Answered

Is there any kind of high voltage voltage doubler that uses pulsed DC? (Solid state not anything like a Marx)

Question by The MadScientist    |  last reply


Cameras make high voltage?

I heard disposable cameras use high voltage for the flash. so if you were to take out the capacitor from 2 and plug the lead to the flash from 1 camera into the battery holder for another you could keep putting them together to get higher and higher voltages right?

Topic by NetReaper    |  last reply


High voltage & marx generator

I'm looking at some instructables, and the simplicity of the cockroft-walton generator is quite interesting. Because I've always been fascinated by lightning and electric sparks (ever since I saw a wimshurst machine as a kid), I was thinking of building a CW generator, to power a small marx generator. Now, I found the parts, but I don't know much about electronics, so I have a few questions, and I was hoping someone here could help me out. 1) For ceramic capacitors, some are labeled for instance '15kV', while others are '15VDC'. I assume the latter only work for DC input, is this correct? 2) If I were to make a CW generator using a few 400V capacitors and a fuse (assuming I don't f*k up putting it together) like this: https://www.instructables.com/id/High-Voltage-Power-Supply-For-Marx-Generator/?&sort;=ACTIVE&l; imit=40&offset;=80 Is there a risk of blowing a fuse in the house, or is that fuse in the setup enough protection? 3) Is there any risk for other electrical devices, like a computer, when I plug this in? 4) I work at a computer repair shop, are there any useful components in power supplies, old screens...? Thanks in advance!

Topic by cgpirre    |  last reply


Railgun, High or Low voltage? Answered

Okay so i'm making a railgun, and need to get capacitors. Should i go with the ones in the 300-400 volts range, or somewhere around 15-50 volts? I would rather go low-voltage, as they seem to be alot cheaper.  Also, how would I go about making a charging circuit, schematics would be nice.

Question by LiquidLightning    |  last reply


High voltage lamp driver

I have a high voltage lamp driver that i took out of an old projector, I want to know if i wil be able to make a jacobs ladder or plasma globe with it? It supplies 25kv or 12.5kv on each of the two wires? it was used to power the lamp of the projector and it connected directly with the lamp wires. PLEASE HELP!

Topic by Francoisler  


A need for high voltage supply. Answered

Hi friends!! I am making a generator.But the problem is that the output obtained is just 1 volt.Is there a way to increase it to 5volts??

Question by Beduk    |  last reply


Parts for a high voltage supply?

I am trying to make a power 100-200kv power supply. I plan to do this by putting the positive output of a 7.5 kv flyback transformer through a cockroft walton multiplier. I have never done something like this before, so I am not completely sure about everything. I plan to make the multiplier with 14-15 stages. I thought that it would be okay to use 10 kv DC 1000pf ceramic disk capacitors in the multiplier. One thing I'm not sure about though is whether or not the flyback outputs DC or AC electricity. I assume it is DC since the input is rectified, but if it still is producing AC then I should probably use 15-20kv rated caps. The main thing is that I don't know what diodes to use. I thought I would use 1N4007 or something similar but the peak reverse voltage is only 1 kv. Does anyone know what type of diode to use, and where to get it at a reasonable price (below $2 per unit preferably)? 

Question by Higgs Boson    |  last reply


High Current voltage booster? Answered

So I have been doing a lot of math for a rail gun, and I finally found out what statistics I need for the capacitor to get the energy needed. But I may have ran into a problem. The voltage for the system is rather low, but the current is high, so I need a capacitor with something like 60-ish Farads, and 20 V, and of course the ones I find are outrageously expensive. ($2,400!!!) But I was able to find ones with 70 F but only 2.1 V, but since I need 20 volts I was thinking that I could use a voltage booster, but I am not sure if that would work, or if I can find/make a Voltage booster that can withstand that kind of current (would be something like 67.5 KA) the other option is find ones with higher Capacitance, which I did, but they are still a bit on the expensive side ($70, and since i need to it comes up to be $140 or so (not as much but still)) So what I wanted to know is whether it would be less expensive to try to find/make a voltage booster, or just buy the $70 capacitors? I suppose I should also be asking is it even possible to get a voltage booster that can that that many amps, and how easy would it be to make? Oh almost forgot, another question (which would skip having to solve the others) is: Is there a way I can increase the voltage that a capacitor can take, or increase the voltage in a capacitor bank, or some variation of those? Because if there is, that makes everything easier, but I couldn't find anything on doing that so yeah...

Question by Mecknavorz    |  last reply


High Energy shenanigans

Blowin up small fruits with my capacitor bank, and a little look at my homemade plasma globe hopefully ill add more of a description at some point, feel free to comment and ask questions

Topic by The 4th Doctor    |  last reply


how to run a high voltage motor with low voltage Answered

Hi there, I just wanna know how to run a 12v D.C motor using a 9v battery, is it possible by using  voltage and current doubler circuits? please help me, as i want this knowledge for a project of mine

Question by VivekM12    |  last reply


I need a high voltage, high amperage power supply

I am in need of a power supply that can give out about 500V @ 13A. I know it's high, but I want it to charge a capacitor(400V, 1000μF, 13A) for my coilgun. I've already tried a flyback charger, but the result was to blow the capacitor up(I think that it couldn't withstand so much voltage, despite the amperege was lower that its threshold). I don't want that to happen again and I want a relatively fast way to charge the capacitor. Also, the power supply needs to be portable. Another thing: the voltage is not mandatory to be THAT high; the amperage also(let's say...1 or 2 amps...)... However I need DC pulsating current, at 20 kHz NOTE: I really hope that I'm not asking too much.......

Question by N3v3rm0r3    |  last reply


Violet Voltage?

Every so often, I see "violet ray" electrotherapy devices come up on ebay. They often sell for silly money, but occasionally one will sell for only a few pounds.Originally quack medical devices, they seem to operate in a similar manner to a plasma globe (gas discharges, high voltages). Does anybody know how they work? Is it worth getting hold of one to rip the innards out to get at the high-voltage supply?(Yes, I know they have "adult uses", but, really, it is the innards I'm talking about)

Topic by Kiteman    |  last reply


wiring and grounding high voltage transformer?

i need to add another power cord to my HV Transformer it does not look like it has any difference in which way it is wired could i just connect the power cord to it and in the second picture is the screw the ground to the case or can i just gound the case itself to a pole in the ground for example

Question by MonstaM    |  last reply


High Voltage shenanigans back with avengence

I threw together some more vids with significantly moar powah, enjoy! interesting note about the cd explosion according to my science the edge of the cd was traveling around 420mph i also have another cd explosion vid on my channel but this ones much more impressive

Topic by The 4th Doctor    |  last reply


Which high voltage transformer is better? Answered

I want to make a high voltage power supply that is capable of producing arcs, etc. but I don't know if I should buy http://www.goldmine-elec-products.com/prodinfo.asp?number=G17659 or http://www.goldmine-elec-products.com/prodinfo.asp?number=G17744. Which transformer is more reliable/powerful/easier to get working?

Question by Shagglepuff    |  last reply


Low voltage, high amperage transformer?

Hi! I would like to make, buy, or find, a low voltage high amperage transformer to power an electrolosis cell. I like playing with the hydrogen-oxygen gas produced. From what I have read, I only need about 1.8 volts for electrolosis, so I'd like a circuit or transformer that could take the power from preferable a 9 volt battery and convert it to 1.8v at as high an amperage as I can get. Thanks : )

Question by fozzy13    |  last reply


High voltage transformer current limiting?

I have modified a MOT to output 10kV as a Tesla coil power supply but when testing I found that there was a very low voltage (maybe 2kV). The primary resistance was measured at 0.2ohm much less than the inductive ballast I've used to current limit. Is the voltage being drawn away from the primary to the ballast? If so how can I resolve this (keep in mind even with the ballast it still needs further current limiting)?

Question by The MadScientist    |  last reply


Cheap high voltage capacitor chargers

Could i use cameral flash circuits to charge a 2100v capacitor? If yes how, if no could i make a cheap and very simple one to do it? I dont have alot of knowledge with arduinos or electronic components that require programming but im ok with most other electronic components so if i have to build my own i need a way without those parts or i guess ill just have to learn them.

Question by Supersonic415  


Combustion Chamber for high voltage spark

Based on Sir9's project http://sdch2o.free.fr/vrac/Sir9-Plasma-Steam-Engine.doc I am preparing to make my own version: The plan is to create a Tesla Turbine powered by steam which is made on the plasma spark from a Tesla Coil - Presumably if Sir9 used just 110 V, the really high voltage of the Tesla Coil should give me Big effects I am not sure about what size, shape and material I should use for the combustion chamber, and whether I can use multiple spark plugs safely. I'm planning to use a small 220v // 2,1kV microwave oven transormer for the coil just to keep things farely safe for the beginning and a turbine made of hard disk drives (about 16 plates) sealed in a plexi-glass chamber I have a lot more questions coming up every minute, need any help I can get - this is my first project of it's kind Thnx

Topic by skyw4lker    |  last reply


Looking for high voltage transformer(s)

Hi! I am looking for anyone who would be willing to give me any neon sign transformers (that are not being used or are unwanted) for free. I have looked online and everyone that I have found has been way too expensive. It doesn't really matter the type, voltage, current, etc. of the transformer, I am just looking for one suitable for making a tesla coil of any size (I can adjust the design and size of the tesla coil to work well with the transformer). I would be willing to pay for shipping as long as you live in the US for I do not have very much money. Also, if you are not willing to give me or do not have a neon sign transformer, I am also looking for oil burner ignition transformers and pretty mucj any high voltage transformers that can be used for high voltage experiments/projects. If you are interested in giving me a transformer for free and are willing to pay for postage, please email me at the following email: ThatElectronicsGirl@gmail.com Otherwise, please leave a reply to this post. Whether you are willing to give me any of the transformers I asked for or not, thank you for taking the time to take a look at this post.

Topic by BeekerButts    |  last reply


High voltage discharge capacitor help?

I recently got a 50uf 2000 volt polarized pulse discharge capacitor to blow stuff up. I tried to charge it with a microwave transformer rectified by a single HV diode, but that did not work. My plan was to fire up the microwave transformer, close HV switch #1 to charge the cap, open HV switch #1, and turn off the microwave transformer. Then I would close HV switch #2, and would send power to "load", in this case an orange (see diagram). However, when I closed HV switch #1 (which is a nail in a piece of wood and a rod on a PVC pipe), I would get arcs. Then, when I closed HV switch #2, nothing happened. I even tried shorting the cap with a rod, but it had not charged. Before this test, I tested the capacitor by charging it to 120 volts and it worked fine (I got a spark). Also, there is no internal resistor to discarge the capacitor after a long period of time. Should I try a full bridge rectifier with 4 diodes instead of a single diode? I will also include a schematic of the circuit (you might have to zoom in in order to see it).

Question by TimTD    |  last reply


Low voltage to very high voltage transformer that can handle as high a current as possible?

I'm looking to convert roughly 5v ac to around 400v or 500v and be able to handle an enormous current. I know very little about transformers when it comes to their current limits. Any help would be appreciated.

Question by ChrisW7    |  last reply



Ultra simple high voltage generator not working? Answered

 I found the low volt side of the transformer but when I attach the second terminal of the 9v it sparks at the battery and not on the high volt side. Help!

Question by 2tautges    |  last reply


how high is the voltage in the average neon transformer? Answered

I need to know because I may be using one as my power source for my Tesla-coil. 

Question by nerd7473    |  last reply


can someone please help me with high voltage?

Does anybody know a cheap, easy way to make high voltage?

Question by felix999    |  last reply


Why not get high voltage by boosting 300V to say 2KV ?

Hi, I plan to build High Voltage of 4KV. The output current is very low (say 100uA). I intend to use this as focus voltage in a CRT application. Hence, I am exploring the ways to do so. I have seen people building high voltage (8-20KV) using transformer followed by voltage multipliers. Now a days, MOSFETs are available which can withstand voltage upto 4.5KV. So it should be possible to create boost converter which could boost 300V to 2KV. Then one can further boost the voltage using voltage multipliers. The input voltage of 300V is achieved by rectifying the line voltage of 220V/50Hz. Visiting internet, I do not see anybody doing so. Hence I wonder what could be wrong in doing something of this kind. Could somebody elaborate ? Regards, Hardeep

Question by hardeeps    |  last reply



How can I start a old monitor flyback transformer using its own driver?

I found an old monitor which i am pretty sure that it is not broken and it works now i wana use the high voltage output using the monitor driver but i dont know form which part should i get the high voltage please help me i need this immiedtly thanks

Question by maaktabkh    |  last reply


Where to buy large capacitors for cheap? Answered

Building various things, like tesla coils, railguns, and wire exploding devices, reguires very large capacitors. I need to know where to buy some with high voltage and capacitance rating around 450v and 10000uF.

Question by macgyver603    |  last reply


oil burner ignition transformer and uses question ? Answered

I recently just got a hold of a Allanson oil ignition transformer, the output voltage is 10,000 volts at 23 ma. the power cord was cut so i have to connect another power cord. what gauge or metal is recommended for the output terminals and can i attach a power switch to the 120 A.C. volt line. i was planning on starting off making a jacobs ladder then later on making a tesla coil after i have worked with high voltage a little bit longer are there any more uses for the high voltage transformer i have  

Question by MonstaM    |  last reply


is it possible to step up a 10 v to 1kv by giving required turns in secondary side of a transformer? Answered

Is it possible to produce very high voltage from a single transformer which having very low input in primary side and large number of windings in secondary? why not?

Question by albiemorkal    |  last reply


What is the most efficient and portable way to convert 3 volts (Battery power) to around 400 Volts?

I need a portable and efficient way to convert battery power (3 volts) to around 400 volts. I will be using alkaline batteries... This will be used to charge a high voltage capacitor bank.

Question by brooklynlord    |  last reply



i need a lightning globe can anyone help me?

One without a light bulb and one thats easy to make

Question by odellcowgirl    |  last reply


1kv to 10kv?

What is the best and/or most simple circuit i can build to convert (300-1000)volts to (6-12)kilo-volts or higher? NB: the input will be output from camera circuit or mosquito swatter ,ranging (300 - 1000 kv )

Question by lu2a    |  last reply


Need help. How to ground high voltage.

Hello, I am in need of a little help. I recently purchased a small Holmes fan with filter as I had a coupon, it was normally 15 dollars, but the coupon was $10 off. When I first bought it I intended to convert it into a electrostatic precipitator, then when I got it home I realized it already had a built in ionizer, which simplified my idea as I can use that as the hv power supply. I am going to use alternating high and grounded metal plates in place of the filter. I was wondering what is the best way to ground the plates? The fan doesn't have a grounding wire.

Topic by rbneville    |  last reply


Voltage VS Amps

This may have been answered before, but I have searched. Throughout all my reading of High Voltage devices, I have noticed that some have high amps and some don't. For instance a Van De Graff generator creates very nice HV but little amps. Well, to be to the point, my question is: What determines a charge having a large amount of amps or not?

Topic by Cryptonat    |  last reply


High Voltage Flyback Transformer Pinout HELP!

I pulled out a flyback HV transformer from a CRT television set (I DO know of the dangers involved, and I'm VERY careful to discharge all caps and to short out the flyback).  But the problems is, I have a FB Samsung C31113D.  Very hard to find schematics or specs on.  Rather than fiddling with which pins do what (via battery and multimeter-which I guess I could do), does anyone know of a site that offers pintout schematics for different manufacturers?  I'm anxious to begin my project on building a Jacob's Ladder.  But without knowing which pins do what, I refuse to tinker.  My life is just too important. Is there anyone who may be able to help me out here?  Perhaps checking each pin with a battery is the only way to go, but I would like to avoid that if possible.  Also, what waveform does the FB  Transformer put out?  I've heard square wave, and I've heard D.C.  The only thing I have definitely heard is that sine waves tend to result in smoke from the FB. Thank you!

Topic by huck alexander    |  last reply


How to build a mini high voltage generator?

I opted to make a mini high voltage generator for my project this semester. Anybody can help me or provide documents for it???

Question by shounakghosh18    |  last reply


generator voltage is too high ? any propositions?

I have a generator, that has an exciter capacitor. the capacitor is dead and nothing as usual was written on it? i changed the capacitor by another one (45 microfarad) but the voltage was too high, i tried then 25 microfarad yet it still too high ? nearly the same (264 V) or a little bit less.  any propositions?

Question by hkassem    |  last reply