Came across this looking for something like so many other times I have landed on your vids. There was so much you were knowledgeable with and had a handle on. It's hard and painful to realise you aren't with us any more but you won't be forgotten and the help and entertainment you gave so many people will live on in your Vids. RIP Ed.

i took a 10000v transformer from a neon sign home from work this week and have been chilling watching arcs. thanks for all the vids you post aussie they are full of knowledge

Hey ed! Great to see ya messing with a classic ignition coils. High voltage coming back lol ;-) THUMBS UP*

looking forward to see what you do with this !!! nice work :)

My friend and I did this several years ago. We stretched a long wire (old phone wiring) across his backyard,connected one end to the ignition coil,and the far end we connected to a small flouro tube,with the tube's opposite end stick in the dirt. The tube lit and flickered..then his mom,neighbors,etc. all started coming out and yelling at us. Not only TV and radio,but Cable TV,phones,cellphones,etc. We wiped out damn-near every signal on the block.

Many years ago when i was at school I made something similar using a GPO type relay and a valve (tube) push pull output transformer which gave 1cm sparks, feeding the dc from a pair of 9 volt batteries into the 3 ohm secondary and the output from the 2 anode taps on the transformer - had it for years and learned a lot about high voltage - great stuff

I love COPS (coil over plugs). Make troubleshooting a whole lot easier and are a blast to have fun with! :)

Nice video, as always.

Great Video!... I love playing around with coils and relays.. They have so much potential for great experiments!! Here is exactly how it works.... when the coil de-energizes, the back emf is what is building the voltage spike that adds a much larger than normal amount input voltage to the primary of the coil. The relay in oscillation creates anywhere from 50 volts ac to 300 vac in oscillation just as long as there is not a suppression diode across the coil. If this is shown on the relay diagram, either cut it out of the circuit , or find another relay because it will not work based on the fact that the back emf spike is needed to drive the primary coil. Depending on the ratio of the transformer coil will determine the output voltage. Normally the input side of the coil sees 12 volts oscillated, or 12 vac, so, if the output would have normally be 50000 volts, it could be as high as 1,249,800 volts on the output using a relay as a driver ! to figure this out, take your 50kv output of the coil and divide it by 12... you'll get 4166, making the coil a 1-4166 ratio device. Take 300 vac (which is the maximum oscillation voltage that I normally obtain with the automotive relay) , and multiply it by 4166 and you'll get 1,250,000 volts maximum, or close. That is some serious voltage, but, it will be a very low amperage that will not normally kill anybody but, it will suck if you get hit by this, so, definitely be careful as it may knock you out cold. If you had wire with insulation that could withstand this voltage, it probably wouldn't fail in the video, but, it is only a matter of time before the coil inside of the ignition coil fries due to over-voltage.. Good Luck & Have Fun!

@Ham549

2 жыл бұрын

I would think the coil would get over saturated before it reaches 1,000Kv.

look at a old model A ford ignition system , it was a vibrator they used to fire the motor , it randomly fired the cylinders . simplistic and worked for many vehicles , Kettering ( Delco) was the one who developed the distributor and points system to be used on the Cadillacs and Gm adopted it . then it was adopted by the auto industry

If you want to experiment with different frequencies you could put a capacitor in parallel with the coil of the relay.

ED a automotive coil for the cop systems run at 60 hz at 7200 rpm at 12 v ( as thy fire once per 2 rev and have execellent dwell ) , the old single coil systems used a 6-9 v to run and 12 v to start ( for richer mixtures with the choke on ) and its one coil firing all cylinders every 2 revs , so they have to be bigger to develop a charge quickly, also to make the relays points last longer use a capacitor across the points , and the voltage across the gap is around 45k-60K but low amps .

I love how at 1:45 as you said you were building a pest control device, a fly just decided to kill itself in the bug zapper

You mentioned generating an arc in a vacuum--I once set up an old fuel-oil ignition transformer to arc across the gap in a burned-out incandescent light bulb. It glowed with a purple color, and quickly became extremely hot. Did not leave it on for long.

I have a coil I've been holding on to for years. I'm going to try this now.

When i was a kid, i had a classic ringing doorbell which basicly does the same. I played with coils, that bell and neon pilot lights (those orange glowing lights). I schocked myself a lot.

thanks for this tip!!! i finally can test my homemade coil out instead of using a motor, magnet and a switch to test it lol

jeez thats awesome haha im out of transistors too so ill have to give this a go for sure haha been so board lately haha

Cool.You can also tune the frequency by bringing a magnet next to the relay!

This is a lot like how I did my first High Voltage experiments. Except instead of an ignition coil I tried it with a MOT and a Flyback. It worked until the little wall-wart power supply I used gave up on me, it was just too much for it to cope with. The relay is still working and in something else now.

I put a Bosch coil and condenser on a turn signal relay. But my sparks arent even 1/2 of that. It is an old coil and an old 12V 7.2A/hr. What I do like about the relay is that it sounds alot like its close to 50/60 hz. So I might try connecting a 2N3055 transistor and see if I can invert to 120 with a few watts.

Oh man. Good memories!

To detune relays you can put a small cap, of some value straight over tyhe coil. that lowers the frequency.

Also,We used an older style cylindrical coil (think mid-60's V8 engine,with points) A tip: Use an old condenser (or decent ~0.1uf HV cap) in parallel with the relay contacts.less arcing,they'll last longer. The cap might not be needed with the coils Ed has,since they have a built-in driver..there's not much current flow with those,just a pulse signal.

oh and I forgot to add the newer cars are fired by the ecms with no mechanical relays , they must be using a mofset to do it , they also use them to control the injectors too , not a electronics person other than old car ignition stuff ,slowly learning the new systems on how the magic boxes work other than letting the magic smoke out of them .

That's exactly why you stick with the blue relay the blue ones create thinner arcs that don't burn materials away the white ones, on the other hand, act just as he explained

I've built these before for similar purposes, it's simple yet effective, though for how long is indeed questionable. In the case of mine I remember observing the inside of the relay ending up black and the contactor looking rather sad.

the coil is like a transformer, the output is roughtly 60,000V. and although a lot of people agree that there is not enough current to kill you, i would not want to test is just in case you already have heart problems

Well, this go's back to the T model ford and such coils that used the coil its self like the relay coil, with the vibrating contact on the end. You should be able to tune it using R and C on the relay coil, also this works well with old point style coils!

Do radars units have hv parts like transformers and vacuum tubes like xrays machines

yea the relays dont last long at all maybe fifteen mins.. im working on a setup that will use either a starter solenoid or solenoid and relay.. any ideas on this?

do you think you could get an even bigger spark by using a capacitor along with it like the older ignition systems on cars use to have?

Ooohh and it's a nice white color too

would putting a potentiometer in line with the coil of the relay to adjust the voltage going to it control the speed that the relay vibrates ?

@ 7:55 if your coils can throw that big an ark i think you can have your spark plugs gapped to what ever the hell you want! :D

P.S. EMP contd.: you might also experiment with different metallic rod lengths. it basically would be an antenna. 150-350mm might be good.

where can I get an oscillating relay and how can i identify one if im looking for a scrap one on a board. You know what commonly uses these things. Thanks

It could potentially be lethal. It all depends on the person,and the circumstances. It's unlikely that it will kill you directly(Unless you have a bad heart or something.),but it's guaranteed to hurt,and make you jump..(thus possibly hitting your head,falling off a ladder,etc.) Most injuries from being shocked are secondary to the shock itself..IE,it's not the shock that kills you,it's when you jump back,and fall off the roof that you're standing on.

Wow. I'm out of date. I didn't realise that modern coil backs included an electronic driver! Suppose it's sensible to keep potentially vulnerable parts out of the ECU.

That's what they used to do to step-up the 12V in a car,to power the tubes in the radio! Google for "Vibrator power supply" (No,not THAT type of vibrator.) They even had vibrators with a second set of contacts,for synchronous rectification!

This would make a fantastic ignitor for homebuilt turbine projects. The old J-47's had an arc type ignition just like this! Ed, could you list the pin-outs to wire that relay?

Ed has created his ultimate weapon against trolls

Stick some metallic rod into ign. coil HV output, make negative to metallic rod spark gap and you have very crude EMP. It might disconnect USB flash drives, keyboards and such in a couple m radius.

wow! better then the one I created... long arc... what kind of coil is that... could you provide a circuit diagram with component details...?

If you put a capacitor across the coil, then you will be able to change how fast the ting pulses based off of the capacitance.

This is known as the "Tickler" circuit. it's use was originally for driving the ignition circuit for the old cars back in the day such as the model-t

How do I make it work the same way

Could you replace the ignition transformer with an MOT and drive it off batteries?

You can try to make a nice gas igniter for your foundry torch or the flamespin. Just an idea...

actually you do not want more voltage , you want more amperage ( push) with higher compressions , on a nitro motor we use 44 amp transformers to fire the fuel mixture , it make one hell of a nice thick blue spark , and also melts the tips off the plugs in open air , a normal car engine in cranking mode (450-600 rpm) is 100 psi , but once you get the motor running the pressures before firing can be upwards to 500 psi , and if the mixture is lean you need more amps to light the fire .

Very interesting! :-D I would like to see this BEEFED-UP! How about.... Mains-rated relay, mains juice & a MOT? Imagine how much that MOT would fizz! :-D Also, seeing as the MOT would be being pulsed so-many times-per-second, I wonder if you could get it to produce a nice big arc if DC was fed into it? We all know that transformers don't like DC, but if it's pulsed quickly enough surely the output would make a few BIG sparks? :-D Thanxx for showing, -BoomBoxDeluxe.

This is probably a stupid question but how can the 12 volts kill you? Does the coil act like a capacitor and store charge boosting the volts?

i want to hook obne of them to my tube flyback how can i get one

you should make a plasma speaker with that there cool i promise

Mate can I get a wiring diagram please wanna do this for testing me coil in the quad please

LOL, ed, Rodeo, one word, the Isuzu is not an expense street in hollywood XD

To slow it down or tune it, put a capacitor across the relay coil. Start with 100uf.

What are you doing with the SLC-500

Add a marx generator to it.. maybe you can generate some x-rays in vacuum :P nice vid man,

Is the trigger pin TTL?

How long does the relay last

You could make a little 1 transistor amplifier circuit going to the trigger circuit and than have an old mp3 player with different frequencies going into the amp :) that might be the most simple way to do this without a relay :) should give it a try;)

Neat.. it's that or the 555 :) (sure, microcontrollers, PWM controllers e.t.c. can be used too)

do u have any idea what u have done? if u could get it a little bit more powerfull u could wirelessly power stuff this is what nico tesl was working on see how far u could get the arc to go >.

Look in a 12 volt battery charger they have a relay in their circuitry I've took a part one before

nope, because when an engine is near TDC, there is over 100psi of pressure in the cylinder, so there is more air in between the spark gap therefore the breakdown voltage gets higher, for high compression engines that can be upto 100kv!

It will hurt but it won't kill :) lots of volts no amps i'm using a spark coil for m electric fence (used to secure my property from thiefes) You could use a vacuum relay - lots of cycles per second due to the lightness of the contact armature and no air resistance

Can you, in theory, make a DC to AC inverter with a relay? That would be interesting!

that driver is really OP for car ignition use LOOL

Nice - what about making a jacobs ladder?

Hi Aussie50 You probably already know High voltage over 26kv under vacuum may very well produce Xrays !

I bought a relay from radio shack but it has no center pin

Another one is try it with a LARGE flash tube :D the argon will draw the arc out a bit further :) but mind the current they can shatter

I can almost smell the ozone :P higher the frequency the lesser the current? and the more ozone (hence why tv fly backs put out stupid amounts of Ozone), lower the frequency the more current? and alot less ozone

owww, that would have hurt for a while :D

I can't imagine those mechanical relays would be happy for very long doing that. Should do a life test!

if u put a compasitor in the relays coil power it will open farther and stay open longer =3-

yep ive been there, torturing relays lol :-) Stick an electrolitic capacitor across the coil to slow it down a bit :-) relays are such crude but handy devices, ive used them for loads of things :-)

Connect some lights and ensure one end is grounded:)

I accidentally killed a pyramid 30 amp power supply years ago while playing with an ignition coil and a relay like this. The lesson is, use a diode to keep the hv out of your power supply, or just use a battery for power.

I work on cars ,you work on electronics what works in the lab , does not sometimes work in the field , seen it in my 30 years of wrenching , case point GM HEI ignition ,and Chrysler corps lean burn systems from the 1970's , and 20 years working on a funny car burning gas to Nitro ,we tried High KV setups and they do not work low Kv and high amps work better , also Dr Christopher Jacobs was the one who proved it.

Incorrect. The breakdown voltage of air increases with pressure, so you need a higher voltage to strike an arc.

Flyback transformers are great fun for low power circuit board burnouts, rather than using a MOT D:

work out what they draw, i shouldn't thing its much over an amp at full tilt. that means if it had a 10,000 volt secondary output (should be much larger) it would have a 1.2 milliamp output. it will get you moving for sure but as they say, volts give you the jolts, amps put out your lamps. ide say its one of the safer things but as you say no high voltage is to be played with dosnt matter if its a 9 volt battery and an transformer with the secondary hooked up the the battery, those things burn!

lol, just like a set of points in an older distributor!

NICE mechanical flyback driver :-)

I guess I have to get a relay from a car also. All my other ones are crap.

Voltage doesn't really matter much - it's more to do with current.

Wrong! It doesn't need for storage device to be magnetic. Google what EMP is! Basically it's a wide-band RF pulse(s). And low power HERF would disrupt communications between USB devices and PC (not permanently).

"Pest control devi"BZZZTTT*

high voltage with low amps is still deadly.

drive the trigger pin from a 555 oscillator

1:44 Pest control device zap zap zap

Electro-bastard ray FTW?

these arnt too bad, its the high discharge race coils like whats on msd ignition systems that give you a belt. i was tuning a carby one day and had my nuts up against the guard. got mixed up with the coil lead and got my nuts fried, lets say im not having children.....lol

I tried this but the relay contacts welded themselves together

@clutch1141

10 жыл бұрын

what type of capacitor are you using?

@nathandance7429

10 жыл бұрын

Electrolytic 4700 uf, need a smaller one as it can't react quickly enough. I found a triac driver to be better anyway, it's just a dimmer in series with a 1uf cap and a coil. produces gaps in excess of 2 inches and runs on 240v mains

@clutch1141

10 жыл бұрын

Cool, glad you got it working. I am using a 440v 30uf non polarized cap and a spdf relay with two coils in parallel to one another but I'm using a DC power source so it can be mobile but otherwise I would use the dimmer setup too.

There was even an overhead Flouro fixture that wasn't turned on,but the tubes in it were very dimly flickering. DO NOT try this..Seriously,The FCC,FAA,and who knows what other TLA's might show up at your door.

And the neighbors radio goes cracking..........

Row DEE OO

You still haven't given compelling evidence that the relay booster voltage. You only spread the wires out and draw the ark out when you have the relay going you never did that when you just wired it straight up so we have nothing to compare it to.