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Scavenging Microwave Ovens


it’s garbage day and I can’t believe
what I’m seeing my neighbor is throwing
away a microwave the saying goes that
one man’s trash is another man’s
treasure
and for me this donation is a treasure
trove just waiting to be uncovered
[Music]
the first thing I need to do is get this
on my workbench and put it back together
I want to know if the thing actually
works so I’ll plug it in and test it by
nuking a CD this electric blue light
show is a good sign it’s working and
it’s a good thing I don’t really need
this CD because it’s totally fried
I’ve got a 60 watt light bulb I want to
try on high heat for about 30 seconds
and I’m fascinated by how it immediately
lights up it’s a great show but I’m
standing about 20 feet away because I’m
thinking this may not end well
the glass is warping at the top and it
just exploded this base is all that’s
left besides all the broken glass ok
enough playing around it’s time to
unplug the microwave and get serious
I’ve got the microwave turned round so I
can start unscrewing the fasteners I’ve
got this old speaker magnet I can use to
hold the screws as they come off and
that’s really helpful because there are
a lot of screws my general rule of thumb
here is see a screw remove a screw
because they’re all going to come out
and working on the bottom panel now
before I move on I’ll save this little
light bulb it’s rated 75 watts at 250
volts by removing the bottom panel I can
access a fun little motor this is the
motor that drives the turntable you put
your food on I’m moving up to the top of
the microwave to remove the screws up
there and this will allow me to pull the
vent cover off as well as the outer
casing at this point I’ve got access to
some dangerous components like this high
voltage capacitor the magnetron and a
high voltage transformer now there’s a
possibility these capacitors carry an
instantly fatal electric shock so I’m
wearing gloves and using a pair of
needle nose pliers to short the
terminals and discharge it completely
I’ll save this high voltage diode and
get to work on removing the transformer
four screws hold that in place and when
they’re removed the wires are
disconnected from the magnetron it’s a
heavy maze of metal and I’m happy
because I’ve got a lot of uses for it
the magnetron is the component that
generates the microwaves that cook your
food and I’ve got that disconnected now
while I’m here I’ll salvage the power
cord this charcoal filter and an AC
blower motor that’s still in great shape
here’s another high voltage light bulb
and some switches these three switches
prevent the microwave from turning on
until the door is shut at this point the
control panel will push out and the
circuit board is removed so I can
collect this piezo electric buzzer and
some relay switches I’ll use a
desoldering iron to remove the solder
making it possible for me to salvage the
12-volt power transformer I also got the
buzzer out and some other
fun goodies like this 15 volt voltage
regulator these germanium and Schottky
diodes are useful and a whole slew of
other treasures that I’ll explore later
I’m super excited because what would
have cost me hundreds of dollars to buy
new I just got for free but wait there’s
more
this magnetron is still hiding a couple
of super-strong ring magnets I’ll use my
bench vise to hold it tight while I rip
the casing off with a pair of pliers
when the sides are folded down I can
save this mesh washer recycle the
aluminum bits and with some leverage for
my chisel slowly pry off the magnet
there’s still another one hiding under
the fins of the heat sink
I’ve just got to clip these two wires
and carefully use my chisel to separate
it off the metal now I’ve got two
super-strong rim magnets that are so
much fun to play with that I went and
found two more microwaves just so I
could get some more the magnetrons look
exactly the same and the magnets are all
about the same size now I’ve got six I
can use in a future levitation project I
also got two more moths which I’m super
excited about because there are a ton of
dangerous projects that can use these
for like unbalanced high-voltage
electrical arcing or these instantly
fatal traveling arcs how about
improvised spot welding or dangerously
exciting metal melting and even
makeshift AC stick welders I feel like I
made out like a bandit on this project
and these salvaged components will lay
the foundation for many projects to come
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support thanks for watching
[Music]
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