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Lethal Electric Arcs (MOT Jacobs ladder)


you can look but don’t touch these arcs
of plasma are lethal enough to kill on
contact in this project we’re using an
old microwave oven transformer to
extract these travelling electric arcs
[Music]
in a previous video I found a microwave
in my neighbor’s garbage can and
salvaged this iron core high voltage
transformer this is heavy metal the
primary winding is around a hundred
turns of insulated wire and there’s
somewhere around a thousand on the
secondary I’ll pull these clips off the
primary two exposes two terminals and
pull this middle wire out of the way
because I won’t be using that I’ve got
the secondary winding connected to some
14 gauge wire and then taped to a nail
on the end of this wooden stick this
setup should insulate my body from the
circuit the other end of the secondary
winding is grounded to the iron directly
and when I put power to it I can draw
out some high-voltage electrical arcs in
order to get these arcs to travel upward
like this I’ll need to form a v-shaped
spark gap I don’t have any metal coat
hangers but I have some uninsulated 14
gauge copper wire this should work I’m
cutting these two pieces roughly two
feet long and using this piece of glass
I salvaged from the door of the
microwave adding pressure and rolling
the glass back and forth seems to be an
effective way to get the kinks out three
inches of the wire is bent 90 degrees
then folded back in half and using
pliers to bend the tips over it looks
like this holding everything flat I’ll
trim the tips and curve them over and
that’s pretty much it this small piece
of wood should work well as a base for
the spark gap so two holes are drilled
and screws at it to hold the copper
electrodes in place this wire is soft so
I can easily form it into a V shape so
that the closest contact points are 3/8
of an inch apart the top is just over 20
inches high and about an inch wide to
make this insulated safety stick I
simply hammered a nail into the end of a
wood 2×2 and proceeded to cut the head
off using a hacksaw the MOT voltage
isn’t high enough to jump a gap this
wide so the nail body will help it get
started to add power I’ll use the cord I
scavenged for the microwave I’ve added
alligator clips to the wires and made
sure the green wire is out of the way
the black and white get clipped onto the
primary coil and these separate clips
connect to the secondary winding and the
outside of the transformer body now I
can plug the cord in flip on the power
and with one hand behind
back aim the snail right between the gap
and there it goes
this is lethally high-voltage but not
quite enough to start on its own the
electrode wires diverge at a very slight
angle slowly stretching the arc as it
travels upward
it’s impressive it how much it grows at
the top before it breaks shaky wires
make the arc less stable and cut out
before reaching the top I’m inside the
house now to get out of the wind and
when this one sparks it takes off like a
rocket
the unbalanced ax dark behaves almost
like a short circuit drawing power and
tell the arc snaps or the circuit
breaker pops I can’t think of any
practical use for this it’s simply
quenching my curiosity this airborne
electricity is rocketing up work because
it’s heating the air around it and the
hot air rises they might look harmless
enough but don’t touch
because contact with the exposed
high-voltage conductors can be lethal
that’s why I have gloves and a safety
stick I’ve just narrowed the spark gap
and now when it shorts out I’ve captured
a glowing orb of electricity I have to
look away because of all the UV
radiation flying out of this thing I
still have this high-voltage capacitor
from a previous video and I’m wondering
what would happen if I added it in
parallel with the spark gap let’s find
out thanks that’s one super trip spark
because this is indoors it’s easy to
make this into an ozone generator right
now this is ionizing oxygen and nitrogen
into ozone and nitric oxide gases now at
least until the breaker pops and perhaps
that’s a good thing since the gas is
poisonous while I’m still alive so this
is probably a good time to power up and
disconnect the cord it’s extremely
important to safely discharge the
capacitor before I remove these lead
wires and put everything away I can tell
this transformer took some abuse because
it’s extremely hot and hard to hold on
to if you like watching these projects
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watching
you
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