How do I fix my microwave turntable that has quit turning?
Question by Nan01 | last reply
How can you quiet vibration on side panel where magnatron is located, if I put my hand on this location you can feel it vibrate and by applying a little pressure the noise is cut in half , tried square piece of rubber used as seam tape for rubber roofing helped a little but looks ugly (wife)
Question by kgroz | last reply
I'm planning on setting up a kind of utility rack in the kitchen, and the top of the microwave is the most convenient location. I was planning on using neo magnets to hold it all in place, but does anyone have any idea if they'll affect the magnetron?
Topic by yontally | last reply
Why Is There A Capacitor In A Microwave? Also, does anyone know what kind of capacitor is it? Thanks :) I'm making a "What's Inside A Microwave" Instructable, And I'm interested what does it do, And I want to explain it...
Question by Yonatan24 | last reply
I was wondering if anyone could help me figure out the proper way to connect a 5V battery power source to this microwave timer (pictured) I read this post- specifically the comments, but am worried I might fry the board if I do it wrong and with a 50/50 shot I'd like to ask the experts first. I've provided pictures below. Thanks for any help you can offer.https://www.instructables.com/id/Digital-timer-for-any-electrical-appliance/?ALLSTEPS
Topic by mrshow555 | last reply
I recently got a working microwave transformer for free, it has unknown wattage, though. What's the best way to ballast it? Some people use lightbulbs, I'd rather not use lightbulbs cause that's almost as dangerous as the lightbulb it's self (I'm comfortable with the transformer, I'm not comfortable with a 500 watt lightbulb, ironic?) No saftey speeches, please, lol.
Topic by guyfrom7up | last reply
Hi so I was bored and decided to make an electromagnet out of a microwave transformer by taking the secondary off and keeping the primary. I hooked it up to some 9v batteries and stuff but it wasn't that strong so I researched it a bit and found out you can hook it up to the transformer input voltage (which was 240v AC) so I did but when I turned it on it made this very loud buzzing noise and I thought I saw what looked like flame in the socket. I turned it off imediately and unplugged everything. Whatever the magnet did must of been strong because it broke itself apart slightly. I tested the sockets with a multimeter and they still say 240v but I just want to make sure I didn't do anything bad to it. Also did anything actually go wrong or was this all meant to happen?
Question by jlandreth1 | last reply
Hello, my question is simple. If I connect about 3v to a microwave transformer and then to a coil, would it make a efficient EMP wave (shutoff a calculator). I know that I can use a disposable camera, I just am learning different ways to do it. (Sorry for the pic, done with my phone haha)
Topic by Skydazz | last reply
How long can a microwave retain an electric charge? I think I need to change a fuse as the unit completely stopped working when I reset a fuse for the kitchen when I found our refrigerator had stopped running. I confirmed that it was indeed the microwave and not the electrical outlet that wasn't working. This occurred 3 days ago. The unit is still plugged in - how long would I need to have it unplugged before I could safely remove the back cover to get to the diagram or the main fuse to see if it's burned out? Thanks for any advice on how to do this, we can't afford to buy a new unit and it sounds like buying a new one would be cheaper (or cost the same!) as hiring a repairman.
Question by luannfeld | last reply
So I saw this post here and I too am feeling creative and wanting to make a portable HERF gun powerful enough to make a ripe piece of fruit explode within less than 1 second. So here's some ideas about how this thing works: 1. The device would use a an appropriately sized vacuum magnetron with an electromagnet The current fed to the magnetron's electromagnet would be a rectified sine wave at the resonant frequency(oscillating current flowing in but not out of the electromagnets coils). The purpose of this technique is to use resonance to turn the magnetron into an amplifier as well as an oscillator so it functions as a maser of sorts(not sure if this has ever been done before). 2. This thing is going to need a lot of power, and I have a solution: pneumatic electricty. The electricity would be produced by means of a high speed electric motor with permanent magnets(which can act as a generator)that is capable of spining several hundred RPM without frying itself. This genemotor would be driven by a turbine spun by by outflow from a cylinder containing compressed air. When the trigger is pulled, the cylinder valve opens and the air is released into a small turbine chamber and then expelled out an exhaust tube extending out the back of the gun. My 1st choice of material for the gas canister is titanium since it has to be both compact and capable of storing compressed air at up to 1000psi(or above). But the big unknowns are a)how much power will be needed to suplly the magnetron and the RF oscillator/rectifier, b) how fast the generator will need to rotate to produce that power ,c) how much pressure is necessary in the compressed air canister, and d)what material I will need the canister to be made of. Any suggestions? Thoughts? Comments?
Question by YugZ0h0th | last reply
This is my Microwave Oven Transformer stack. It is currently current limited using a heater. There is approximately 10 36 watt 4' fluorescent tubes in a string around my garage that I am lighting with the MOT stack .My MOT stack contains 4 Microwave Oven Transformers connected with their outputs in series and their inputs in parallel. They are mounted on plastic cutting boards. I am using threaded rod to hold the layers in place while the PVC pipe covers the threaded rod and it also supports some of the weight. The output of this is approximately 8800VAC at 350mA The Input voltage is 240VAC Thanks for looking, Please comment and remember to rate if you like it! Just say if you want any pics of a certain thing, e.g. the MOT stack arcing to wood/metal etc. (I will try to get more pics of it arcing soon but it is hard to use a camera that has like a second delay before it takes the actual pic from when you press the button, stupid camera) ********************************************************************************************************** Edit The new pictures are of an arc between two carbon electrodes. The other pictures are of 12 fluorescent tubes connected in series but arranged in parallel so you can see them all
Topic by thermoelectric | last reply
I decided to take apart an old microwave and found this big, heavy, metal transformer thing and i wanna know what and how to do something with it
Question by meanbean | last reply
I'm trying to figure out a way to make my microwave appear to be working, but without actually microwaving anything. Anyone know if there are any failsafes that won't let the microwave "run" without the magnetron? Any other suggestions about getting this to work are welcome! thanks!
Question by uuuuuunnnnnn | last reply
Looking for a glass turntable for a GE stainless steel oven Model # JES 1142 SJ .Could you help withlocating this part as well as the cost?
Question by trinidaye | last reply
Question by georgene49 | last reply
When iI just turned it on ...it made a pop sound and a strong electric burning smell...now nothing is working..lights or display... outlet is good? any ideas on how and what to do????? I spoke to Firgidaire and they are willing to sell me a megatron... could that be it and how hard is it to replace......Ken
Question by kenny.panzer | last reply
so I want to heat/bend 12 ft long lumber. It only takes about 20 seconds in a microwave. So I'm handy with the grinder but know nothing about microwave radiation, start it up and get far, far away. Or .... Is there any kind of large/long microwave yooz guyz know of?
Question by jimboa2020red | last reply
I am asking about a jammer that is used to block signals. like the ones which jam or disable mobile phones in an area or the ones which prevent eavesdropping in a room etc..
Question by whamsy | last reply
Question by Salty9 | last reply
Hello after wanting to build a tesla coil, but first reading up on how to make a HV output supply from a microwave transformer, then realising i want an arc furnace to melt pool salt(calcium chloride, or if possible, carbonate) in order to make calcium metal, or calcium carbide, via electrolysis what do i need to do, to build an arc furnance from a microwave transformer? clearly it seems very much able to generate an arc, with a significant amoutn of heat, but i dont know how to safely use it to do what i want. at the moment i already do own a microwave transformer, its fuse clips and all the other junk form the microwave transformer. i also want to know if its possible to melt lead with an arc furnace, as i want to do some lead casting wihtout using expensive propane.
Question by oldmanbeefjerky | last reply
Pretty simple, I was just wondering if either is microwave-safe. It would be for no more than 2 minutes...I wanted to use them as a mold. Melt probably?
Question by crearc | last reply
Hi.I have a microwave generator from DAIHEN. It is a 3kW magnetron that makes 2450MHz wave.The model is ATP-30B(high voltage unit) and SMA-30DI(magnetron unit).This devices made in Japan and I need DATASHEET.If there is any clue that can help me plz inform me. thx
Topic by HesamP1 | last reply
I recently obtained a microwave oven inverter and I've been doing a lot of research trying to figure out how to power it. The microwave I found came with schematics and a decoder for the button membrane so I am able to operate the main control board and the MICOM board outside of the unit (with slight modifications) but I have yet to test the inverter in fear of blowing it up. Currently my question is can I build a 555 PWM to cheat the CPU or bypass it completely? if not then I suppose I could use the microwaves original circuitry to do so but I'd like to build a nice solid state tesla coil with it if possible. Instructables is being retarded and wont let me add notes to my pictures image one - Main control board to the left, MICOM control board in the middle, Iverter on the right image two - Slight modifications to power the board outside of the microwave image three - Used decoding chart to operate main circuit without button assembly image four and five - Showing the output of the MICOM board going to the CPU on the inverter and settings of Oscope (channel A)
Question by Jimmy Proton | last reply
I need to know what the middle (approx 5 turn) coil of a microwave transformer is for, does it need to be there for the transformer to work properly and what difference will there be without it? I am not going to reinstall this transformer in a microwave it has been modified to output 10KV to power a Tesla coil.
Question by The MadScientist | last reply
OK, i just pulled this huge transformer out of a microwave today and was just wondering how on earth to hook it up. Pictures below. so please help. And sorry about the pictures being sideways. The bolts you see are on the bottom.
Question by budhaztm | last reply
Hey guys I've seen around the net that it's fairly easy to make a spot welder from a micro wave transformer /micro oven transformer. So I was thinking if it's possibly to use the same idea to make a induction furnace? I would like to use it for melting/ casting aluminum (...and possibly metals with a higher melting point... if possible) any idea if it's possible.. and how to?
Question by lordl9999 | last reply
Hello, I soon wish to start making some videos of microwaving stuff like CD's , eggs and xboxes. For these videos, ideally, ide like to not have the microwave door in, i fully know how to get the microwave to run without it, but since m videoing it, what would be a safe distance? Also, would power efficiency be cut with the removal of the door? Otherwise, if i cant microwave as usual without the door, if i was to remove half of the mesh in the microwave door (like every second row ect, not one half side) would that have any negative implications? and then, what would be a safe videoing distance from which to video the microwave? i want to make this as visible as possible, while keeping maximum power, also while not wrecking my video camera.
Question by oldmanbeefjerky
I'm working on a microwave oven transformer based AC welder. Newer microwaves don't use classic steel and copper transformers but rather something much lighter with a few beefy electronics that look like transistors. My question is how does one manipulate these new-style electronic trasformers (if that's what they're called)? Imagine all the wonderful things one could to with such a light-weight but powerful circuit. Maybe it could run a laser, welder, or do voltage boosting for renewable electricity systems with long cable runs...
Question by snotty | last reply
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
I have a small AC synchronous microwave motor that I want to use for a project. The problem is that even though it says CCW/CW, which i take it to mean counter clockwise and clockwise, it randomly seems to choose which direction it wants to turn rather than me reversing the current to change the direction. What makes this motor randomly choose a direction? Is it some internal component that randomly decides it's direction? Basically, is there a way I can make it go the direction I want? If not, can someone point out a small size motor type that is cheap and has a lot of torque? Thanks to anyone who replies!
Topic by rodneykristy | last reply
So I've been looking into the design and operating principles of cavity magnetrons and I have some questions that I can't find answers to. What exactly determines the output power of a magnetron? Is it just a matter of how much voltage you put in and if so, is there a limit to how much voltage can be put in? If there is a limit, what properties of the magnetron set the limit? If it's not that, than does the output power have to do with the number of resonator cavities the magnetron has? Sorry if this is a lot of questions, and if I'm misunderstanding something about all this (which is more than likely) or what I'm asking is unclear, please let me know.
Question by Mecknavorz | last reply
So I bought some Mirrowave turn table motors to use as an Epoxy Rod dryer I knew I didnt want the 220's and thought I had bought 110 AC but they are AC 30V 3W I have 4 of them and need to know a cheap way to wire em up. Was being cheap and didnt want to pay $10 a motor and got all 4 for $10 but now I see I am going to need a voltage reduction and or transformer. Was thinking one of my old printer or laptop cubes would work.. but those are all AC/DC converters :-( I am pretty good with hands.. but Electrical circuits not my strong suit.
Question by ToddG39 | last reply
I have a timer switch from an old dead microwave oven. Can I use it as the mains timer switch? If yes, how do I connect it. The timer looks exactly like what is shown in the following picture: http://hackadaycom.files.wordpress.com/2013/09/mads-microwave-teardown1.jpg (The picture was not taken by me. It is from an article on useful things that can be harvested from dead microwave oven.) Also, if possible, please mention the functions of various pins or give a link to an explanation.
Question by raftor | last reply
If not that what about: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail? If neither is good then can you recommend some that would be ideal? I already know hat disposable camera capacitors can be good.
Question by Darter76 | last reply
I am looking for some free used microwaves in the Seattle area.
Question by workinprogress37 | last reply
No visible mechanical buzzer. Seems to be one of the little boxes that is attached to the circuit board. I know nothing about electronics. Don't want to kill myself or ruin the microwave, but that damn buzzer is driving everybody crazy! Help!
Question by melnel | last reply
I read TimAnderson's Instructable on building a homemade welder from microwave oven transformers, but that instructable is for a 110V setup, what should I change to make it work using 220V transformers on 220V. (I already gathered all the materials...)https://www.instructables.com/id/Build-a-Microwave-Transformer-Homemade-Welder/ ....Link to TimAnderson's homemade welder?
Question by inserbot | last reply
The microwave interior (where you put the food) rusted out in one corner i need to fill it (with what ) and coat it to make it look good and be properly sealed but with what do i coat it? so far everything i have used has caught on fire. thank you
Question by fixitnotbroken | last reply
Hello i am feeling particularily creative at the moment and would like to go down to the beach and pick coconuts from the coconut trees, using a herf ray , in which i would blow up the coconuts with the microwaves being emmited from the magnetron. what i want to know though, as it seems to be missing from every single webpage which mentions the construction of a herf ray using a magnetron is, how exactly would i set up the magnetron so that it would create a directional beam capable of frying a coconut abbout 10-30m off the ground? i have seen this being done by a guy on the beach before, making the coconuts explode using a herf ray, when i asked this person how he was doing it he simply said that he was using a microwave gun made from a microwave also, i have no intension of climbing the trees to get the coconuts
Question by oldmanbeefjerky | last reply
Ok, so this is actually pretty interesting. We have a Netflix enabled Blu-Ray player. It connects to our wifi to run the streaming... But we have noticed something weird.... Every time a movie is playing, and the microwave runs- the movie abruptly stops and the player says "The network appears to be down. Retry?". This has happened consistently 4-5 times. So my question- is the microwave radiation enough to cause bumps and glitches in the network? The network is run off a Apple wifi routers, and it should be wireless N (5ghz) Any ideas if this could happen?
Question by astroboy907
Hello, I have a rewound MOT (230V input and 9-50V output, different custom windings) and I'm wondering why the transformer gets so hot when no load is even connected? Is it normal that MOT's get so hot quickly because the primary impedance is just so low? and how do they fix this problem when the MOT is still inside the microwave oven? Because there, it does need to be able to run for hours. I've read about ballasting the MOT, but I thought that was only for current limiting, when you Are attaching loads on the secondary? Greetings, Electorials
Question by DELETED_Electorials | last reply
Good enough for power tools I saw one on the net somewhere and can't find it. I got a microwave from the tip but it was too good and so it has a new life in the kitchen.
Question by tezzz | last reply