@MrStemkilla Because when you charge up a capacitor, you are taking electrons from one side of the dielectric and transferring them to the other. Obviously you do this with DC. If you used AC you would simply take some electrons out of one side, shove them back in, take them out, shove them back in.....not much use in that eh?
@MrStemkilla Well having studied the wiring diagram for a Toshiba microwave, It looks like the capacitor (the only one I could see in the diagram) is part of the voltage step-up system, that feeds the Magnetron. That's why its voltage rating would be in AC. The output from the secondary coil of a transformer is always AC.
@jsiuksta thats what im saying the output is ac and the magnetron runs on ac then why is there a cap in between and if its being fed ac like you said it shouldent be charging but why dould the put it in there if its not doing anything?
@MrStemkilla My guess is that it's a Smoothing Capacitor. That is it smooths out the wave-form of the output from the transformer. So that when the transformer voltage temporarily goes to zero, the capacitor feeds it's packet of stored energy to the Magnetron. But this is just a guess. My Google searching didn't provide a specific answer.
@MrStemkilla Assuming we're talking about home made Leyden Jar capacitors, (glass jar, salt water inside, aluminium kitchen foil glued to the outside) with very little capacity, then one cycle should be enough to charge them up. Although I have seen Tesla Coil plans with DC-charged capacitors. I have built a Leyden Jar, but not a Tesla Coil, so I can't really speak from experience about Tesla coils. My interest is in building a replica of the E.V. Gray motor, which is high voltage DC powered.
@jsiuksta well im planing to use a different kind of cap i wanted to use a metal plate inolated by a big rubber matt then repeat the proses several times so hopefully that will create a way better cap but maby if i can get some diodes and maby i can make it a dc cap to get a better charge idk maby my i will do that for a second coil
@MrStemkilla my first tesla coils used a bank of saltwater caps ,i used a lot of jars to make a very small 14nf in total but because thay run ac they charge and discarge 100 times a second which is the same time as the spark gap which all run at the same time as the line frequency 50 Hz .i now have a mmc its still 14 nf but alot smaller .check out my vids of them ?!
@jeffddow The intense UV light from the sparks charge the cap's envelope material, and it has a very little afterglow. Most of the plastics have this effect, I have similar experience with a polyamide rotating spark gap, which emitted green light.
@37474748 Of course it is possible, but what is your goal with this? 1uF 2100V caps charged to 12V has a total energy of 0,000072 J. With this energy you even can't light up a LED for more than a few milliseconds.
lol sounds like gunshots. holy crap those things are mean dont touch, they might blow your finger off. An electronics place I worked at had this 12 volt DC 40 amp power supply and it had a large filter cap on it and my boss/friend said that if I ever touched it it would blow off my finger. I heeded his advice and didnt touch.
@FelSound haha are you retarded. 2 volts wont do anything and even with your hands wet there will still be too much resistance to get any current high enough.
@omegalab technically it can because high voltage capacitors like those that you are working with store a lot of amperage along side of the voltage. i think its more just being careful instead of being an idiot while working with these bad boys
MOCs are fun and all, but a word of warning: they often aren't as heavily built as proper pulse discharge capacitors, and I know of at least one person who has had a MOC explode violently while using it in a pulsed power application. A little polycarbonate protective covering would go a long way here.
this is awesome every time i see this i laugh uncontrollably i have like 6 of them and two HV transformers i used to do the same thing but instead of useing the capacitors i did it straight off the transformer
Anyway, I've got 6 of them since before and I've charged them up to 4400 volts dc with full-wave rectification and an ripple-reducing inductance, and MAN!
I calculated that they store just over 100 J, and that is enough to VAPOURIZE thin copper wire, and thicker ones of iron. That hurts the ears thoug... BOOM!
I gaurantee you if you were to collect all the enrgy discharged it would account for way more then used to charge them in the first place. I can explain if you dont already know this
Just another nut-case. I design electronics for a living,and we have the most sophisticated lab equipment available anwhere. Capacitors discharge exactly what is put into them, less dielectric and resistive losses. Go peddle your stupidity somewhere else.
You should use 2 over transformers in series, and 46 oven caps in series+parallel, and youtube it. I've collected 7 of the capactors so far, only 39 to go ;) Around my area though, usually once a week a dead microwave turns up on the street, usually with blown electronics, or just a simple fuse, so the HV bits are ok.
Where do you get all those capacitors? I notice they are the same type...
a380rockerfan 6 months ago
@a380rockerfan I have 200 of these capacitors, I bought them from a friend.
omegalab 6 months ago
why did you charge them in dc? they are rated for 2100 volts ac? and how long did you charge them conected to the mot?
MrStemkilla 8 months ago
@MrStemkilla Because when you charge up a capacitor, you are taking electrons from one side of the dielectric and transferring them to the other. Obviously you do this with DC. If you used AC you would simply take some electrons out of one side, shove them back in, take them out, shove them back in.....not much use in that eh?
jsiuksta 8 months ago
@jsiuksta ok i see thats sorda what i thought but then how do microwaves charge thir caps? and why is it rated for ac?
MrStemkilla 8 months ago
@MrStemkilla Well having studied the wiring diagram for a Toshiba microwave, It looks like the capacitor (the only one I could see in the diagram) is part of the voltage step-up system, that feeds the Magnetron. That's why its voltage rating would be in AC. The output from the secondary coil of a transformer is always AC.
jsiuksta 8 months ago
@jsiuksta thats what im saying the output is ac and the magnetron runs on ac then why is there a cap in between and if its being fed ac like you said it shouldent be charging but why dould the put it in there if its not doing anything?
MrStemkilla 8 months ago
@MrStemkilla My guess is that it's a Smoothing Capacitor. That is it smooths out the wave-form of the output from the transformer. So that when the transformer voltage temporarily goes to zero, the capacitor feeds it's packet of stored energy to the Magnetron. But this is just a guess. My Google searching didn't provide a specific answer.
jsiuksta 8 months ago
@jsiuksta that rases the qwestion how do tesla coile capacitors chatge if they will only hold one sycoles worth of electrons?
MrStemkilla 8 months ago
@MrStemkilla Assuming we're talking about home made Leyden Jar capacitors, (glass jar, salt water inside, aluminium kitchen foil glued to the outside) with very little capacity, then one cycle should be enough to charge them up. Although I have seen Tesla Coil plans with DC-charged capacitors. I have built a Leyden Jar, but not a Tesla Coil, so I can't really speak from experience about Tesla coils. My interest is in building a replica of the E.V. Gray motor, which is high voltage DC powered.
jsiuksta 8 months ago
@jsiuksta well im planing to use a different kind of cap i wanted to use a metal plate inolated by a big rubber matt then repeat the proses several times so hopefully that will create a way better cap but maby if i can get some diodes and maby i can make it a dc cap to get a better charge idk maby my i will do that for a second coil
MrStemkilla 8 months ago
@MrStemkilla my first tesla coils used a bank of saltwater caps ,i used a lot of jars to make a very small 14nf in total but because thay run ac they charge and discarge 100 times a second which is the same time as the spark gap which all run at the same time as the line frequency 50 Hz .i now have a mmc its still 14 nf but alot smaller .check out my vids of them ?!
HighVoltageProjects 6 months ago
maybe its your camera but why do the blue caps on top seem like they have a residual glow afterwards?
jeffddow 8 months ago
@jeffddow The intense UV light from the sparks charge the cap's envelope material, and it has a very little afterglow. Most of the plastics have this effect, I have similar experience with a polyamide rotating spark gap, which emitted green light.
omegalab 8 months ago
tastes like chocolate!
slowmopoke 9 months ago
is it posible to use microwave capasitors for low voltage like 12volts dc? in that case how? I would like to get a few and make an bank of caps :)
37474748 9 months ago
@37474748 Of course it is possible, but what is your goal with this? 1uF 2100V caps charged to 12V has a total energy of 0,000072 J. With this energy you even can't light up a LED for more than a few milliseconds.
omegalab 9 months ago
BOOOO YA NOW ALL U GOT to do is to get that baby wired up around ur fence and tell some pee on it hahahah NICE SET UP U GOT THERE
KRAYSLiCK999 10 months ago
Fastest iphone charger in the world
MrThomassss 10 months ago
DARWIN AWARD
TheFrostymountains 11 months ago
OMG that looks dangerous if you don't know what you are doing. Awesome power.
PushingD 11 months ago
do us all a favor and use your "high voltage" to find your current... through you
SpikeZeek 1 year ago
That looks safe.
KaslarProductions 1 year ago
goddamn thats scary
micLuc14 1 year ago
I once put a Microwave Compacitor to a Assholes head "It was Funny" He layed down and didnt do anything for well... Idk i got tired of waiting...
Mac4Out 1 year ago
they don´t like that. they want revenge *devil*
fireworkfreak100 1 year ago
i can barely smell it ..... awesome
cids7777 1 year ago
those capacitors are so big because they are used to put the microwaves seconday at a resonant frequecy of 60hz and increase the voltage
YummyMercury 1 year ago
make a rail gun or something
snowman3514 1 year ago
@snowman3514
it's totaly useless , rail gun are for little kid .
hitachi088 1 year ago
@hitachi088
i wouldnt let kids play with that kind of voltage :P
snowman3514 1 year ago
lol sounds like gunshots. holy crap those things are mean dont touch, they might blow your finger off. An electronics place I worked at had this 12 volt DC 40 amp power supply and it had a large filter cap on it and my boss/friend said that if I ever touched it it would blow off my finger. I heeded his advice and didnt touch.
coondogtheman1234 2 years ago
12V is not enough to hurt you.
omegalab 2 years ago
no but the cap was hugeI guess it was a filter cap but I dunno. my friend just said if you tough that it could blow your finger off like vaporize it.
coondogtheman1234 2 years ago
Huge, big, or small, this is not matter.
omegalab 2 years ago
@omegalab If there are enough amps .. 2 volts can blow your finger up !!! -- because it will heat the water in youre skin up.
FelSound 1 year ago
@FelSound 2 volts is not enough for this.
omegalab 1 year ago
@omegalab sure ? If your skin is wet.... 2 volt can be enough, trust me ;D
FelSound 1 year ago
@FelSound You need to learn the ohm's law first, trust me ;)
omegalab 1 year ago 2
@FelSound sorry, I can't trust you because you don't seem to know anything about electricity :(
stephanosanio 1 year ago
@stephanosanio well, youre right i confuse something ;D
FelSound 1 year ago
@FelSound haha are you retarded. 2 volts wont do anything and even with your hands wet there will still be too much resistance to get any current high enough.
peoplerox 1 year ago
@omegalab technically it can because high voltage capacitors like those that you are working with store a lot of amperage along side of the voltage. i think its more just being careful instead of being an idiot while working with these bad boys
hellsmaw84 2 years ago
is it possible to make a marx generator out of microwave oven capacitors?
hugestomper 2 years ago
Yes, but each cap contains a 10Mohm resistor, and this put down the efficiency.
omegalab 2 years ago
lol i would just throw it in a fire and make fire works!!!!
007zone007 2 years ago
What's the capacitance of each individual capacitor in your bank.
BenHutchinson1 2 years ago
That much energy should have blown the whole board to pieces with one shot. I believe you wired something wrong and got not that much stored energy.
BenHutchinson1 2 years ago
Oh really? How can I wire 23 parallel capacitor wrong? 91 J is not so big energy, see my 1kJ cap vids.
omegalab 2 years ago
LMAO! Loud angry pops and snaps too
Mosfet510 2 years ago
Holy Crap!
jupy921 2 years ago
1:42 capacitor is blown off the board! WOW!
fullrangechris 2 years ago
MOCs are fun and all, but a word of warning: they often aren't as heavily built as proper pulse discharge capacitors, and I know of at least one person who has had a MOC explode violently while using it in a pulsed power application. A little polycarbonate protective covering would go a long way here.
N3m15i5 3 years ago
touchh ittt :P thats crazy though i wanna tare my microwave apart now :P
Triple88a 3 years ago
Too bad you dont know how to collect back emf you closed minded faggot
sdfab 3 years ago
No. Oil caps.
omegalab 3 years ago
this is awesome every time i see this i laugh uncontrollably i have like 6 of them and two HV transformers i used to do the same thing but instead of useing the capacitors i did it straight off the transformer
DRNEGOLICIS 3 years ago
Is it just me or are the capacitors on the board flourecent just after electrocution?
look at 0:55 and forward...
I could use some of those... Ratings? Voltage/capacitance?
anon32016 3 years ago
"I could use some of those... Ratings? Voltage/capacitance?"
See description.
Yes, seems like fluorescent light.
omegalab 3 years ago
lol, i saw the same thing.
Oh, and they are capacitors out of microwaves, 2kvdc each and 1uf is there rounded values.
triggerhappy77707 3 years ago
Ya, I've noticed by now. Old comment...
Anyway, I've got 6 of them since before and I've charged them up to 4400 volts dc with full-wave rectification and an ripple-reducing inductance, and MAN!
I calculated that they store just over 100 J, and that is enough to VAPOURIZE thin copper wire, and thicker ones of iron. That hurts the ears thoug... BOOM!
anon32016 3 years ago
lol you're "MOCing" that circuit board! =)
(MOC - Microwave Oven Capacitors)
ChrisKarr 3 years ago
Bet they'd make a hell of a Taser! LOL
Bran247 3 years ago
Yeah them capacitors must have had a pretty shit day...
spinctah 3 years ago
hahaha fuck. if you had one of those capacitors wired to your window wipers ud stop getting tickets eh haha. jokes
270270wsm 3 years ago 10
I gaurantee you if you were to collect all the enrgy discharged it would account for way more then used to charge them in the first place. I can explain if you dont already know this
sdfab 3 years ago
Just another nut-case. I design electronics for a living,and we have the most sophisticated lab equipment available anwhere. Capacitors discharge exactly what is put into them, less dielectric and resistive losses. Go peddle your stupidity somewhere else.
rippedwrangler 3 years ago
shit, those are some pissed off capacitors
digidude86 3 years ago
lol r u idiot?
thecrayzy 3 years ago
You should use 2 over transformers in series, and 46 oven caps in series+parallel, and youtube it. I've collected 7 of the capactors so far, only 39 to go ;) Around my area though, usually once a week a dead microwave turns up on the street, usually with blown electronics, or just a simple fuse, so the HV bits are ok.
dash8brj 3 years ago
wow realy strong sparks
ablublibleblu 3 years ago
Converting with my phone, the voltage in the caps is 5.6KV (Detailed expresion:5.679725875e20)
mumish13 3 years ago
?
In the microwave oven the capacitor is used for half-wave voltage doublier, so when the cap is in the oven they are on 5,9kVDC (2100 *1,41 *2)
I charged them just 2,8kV.
omegalab 3 years ago
What was the pcb ? The control panel from the microwave oven ?
Whatever it was... it's dead now !!!
I like the method of remote-control...
"Hey, are you going to hold the wire ?"
"Not likely, I wouldn't touch it with a ten-foot pole.... Now there's an idea...!"
RoadRunnerLaser 3 years ago
This was a power supply panel :)
omegalab 3 years ago
nice, and lucky, i can only find like, one capacitor
codemsan 3 years ago