Opening up some high voltage capacitors from discarded microwave ovens to salvage the 10 mega-ohm resistors inside. Some tips on opening the can and a nice surprise inside one of the capacitors.
This is an important video for those who re-purpose. Many who don't realize there are resistors and diodes in microwave oven capacitors. Thanks for taking the time and sharing.
The oil is usually mineral, the same stuff you drink to help with tough caca, and occasionally silicone based oil. So to those worried about the toxicity- it’s not too bad. It might even help you shit.
I've been searching for DIY meg-ohm resistor videos and i came across this. perfect, i need a 10Meg for a project and I have a few of these caps laying around, thanks for uploading!
I want to understand how they work? Can they be charged with a 12 volt battery ? Battery is direct current how are they charged in a microwave? And what determines when it releases its charger ?
At first glance it appears that microwave oven caps are inductive. No attempt seems to have been made to extend the plates beyond the dielectric for parallel connection. Bummer.
hi people .. i won ask question . Can it be use for car sound system?just capacitor ( just remove it from Oven and connected in car) thank you for respond
Is there wny way to know which capacitor mf. value must be used with a specific magnetron? I think mine was replaced with one that is not the same value of the original and I´ve read that it may cause a low heat or a premature magnetron damage. I´ve looked on the internet and can´t find a chart where each magnetron model has the value of the capacitor to work with
Hi I'm new why take them apart? are they expensive or just hard to get, or because you can. I have other questions, but I've just subscri ed so maybe you'll do a video and I can put the question there.
I use the resistors for high-voltage voltage dividers. I get the caps for free from scrap microwaves so it costs me nothing but my time. You can check the prices of MOhm resistors & decide if it's worth it to you.
thanks for the video, and hello from Sydney! i want to make a massive cockcrofft and walton generator using 50 of these do you think the resistors will affect the performance of the capacitor dumping HV?
Why do you junk the caps? Can't they withstand pretty high voltages? Probably even nice to have the cap without the bleeder resistor, so you can just fill it back up and seal it again.
+johnb003 The caps are rated to 2KV or 2.1KV and I did consider keeping them but I have sooo much stuff and I also have high voltage caps that are ready to go off the shelf. If I kept these caps, they would need to go back under oil asap before they dry out. Also, the oil vapour is flammable so it would be risky to solder leads to the terminals. I can also get more of them whenever I want. In short, it's just too much work and I have better caps. If I didn't have any other caps, I would maybe consider it, but I don't need to, so I don't.
Yeah, I'd usually be inclined to agree, but the caps cost me nothing & the local availability of high M-ohm resistors is low. Also, there are not many industrial and/or consumer goods from which you can salvage them.
Energy Fabricator resistors are literally the easiest and cheapest component to make. This is almost as bad as the scrappers who melt down the microwave oven transformers for $5 of metal
So it is for safety reason. When power off. Capacitor is drain clean. My electric motor is AC, has Bridge rectifier convert 120Vac to 120Vdc. Before go to motor. It has resistor. No capacitor anywhere. Why still need resistor in this case? ------ I was wondering if it is possible have AC capacitor such as the one you shown on the video from microwave to store DC volt and DC current.
Good stuff! I didn't realise there was a resistor inside those caps! Also to note is not to open up old caps as they could have the nasty PCB oil in them
They are bleed down resistors.. the capacitor will not hold a charge with the resistors still in there...they are a safety feature of these large caps.
My zero waste Facebook group is always looking for ways t avoid the landfill.scratch Let's should look for and join groups lime that as a source for defunct appliances.
keith king I'm not sure exactly what the power ratings are. The ones which look like standard resistors are probably around 1-2watts. The flat ones on ceramic strips are most likely 1/4 a 1/2 watt.
@@EnergyFabricator those caps can kill you right!!? Do you know what sort of power they can put out when charged up?? Like what's there rating, Fareds and such???
Its a safety measure to prevent some idiot from touching the capacitor and killing them selves.It discharges the cap after the power is turned off.And believe me there is way more than killing power here.Be careful.
