What would cause a popping/crackling sound in one of my stereo speakers?
Most popping or crackling sounds in an audio system come from a bad or dirty connections. Sometimes they do come from a faulty unit or component, but in most cases it is a connection issue. Whether that connection is in the connectors, wiring, circuit board or components, or even just a bad solder joint, wherever that connection is, finding it becomes the main issue to tackle. There are some relatively simple methods that can be used to locate it.First identify which part of your audio system has the issue. The fact that it is only in one of your speakers is a huge help in identifying what might be causing the noise. If both channels had the same noise, this method would not work. You can easily identify the source by swapping the channels and seeing if the noise moves or stays on the same channel.For example, swap the channels the speakers are connected to. Does it persist on the same speaker or does transfer to the other? After swapping, if it remains with the same speaker ( other channel), then it is the speaker connections (or the speaker itself) that are problematic. If it is now on the same channel (other speaker), it is somewhere in the system, before the speaker connections. You can continue to swap different components back and forth, swapping channels and work back to where the source and component is identified.Sometimes just connecting and reconnecting the cables and components solves the problem, as the connection is improved. Good luck!One component that usually becomes noisy that way (more of a crackling sound than a popping one)is a potentiometer (also called a ‘pot’, normally volume controls, bass-treble-balance controls, etc.). These can be easily identified by rotating or sliding the controls as the case may be, and listening for the noise. These can be cleaned with the right solvents or sprays.Worst case scenario is a failed or failing component such as a transistor, capacitor, resistor, solder joint (actually solder joints are relatively easily repaired, just identifying the problematic one is the challenge!), etc.Once you have identified the part or unit in the system that is causing the noise, then it will be easier to decide how best to correct the issue (replace or repair).
What is causing my Ford Focus to make a noise for 5 minutes after turning the engine off?
This is pretty difficult to diagnose based on your description. What year is the car and which engine does it have? Can you give a description of the noise and what volume it is? What part of the car does the noise come from? To be blunt, I’m tempted to downvote the question for giving so little useful detail.However, there are a couple of things that come to mind.If it’s a turbo, most modern cars have a pump that will run to circulate coolant through the turbo so residual heat doesn’t cook the oil into a solid and cause blockages in the oil passages. Also, if it’s a gasoline engine, some newer cars will run a pump that puts pressure on the fuel system and fuel tank to check for leaks. This is for emissions purposes. Finally, I believe some of it might have to do with the high pressure fuel pump on direct injection cars.In any event, many modern cars have systems that continue to function for a few minutes after the car is shut down. If the sounds are fairly quiet whirring noises and they’re consistent every time you shut the car off, don’t worry about it.
Wood burning fireplace to a gas log fireplace?
I done basically the same thing a few years ago except I added a enclosed insert in my wood burning fireplace. Basically you seal the fireplace (close the damper). I had a heatilator so I just put insulation in the vents. Clean everything out of the fireplace (grate, ashes, dirt, etc) and lay the logs in. You will need to have a gas line run to the fireplace. This is the expensive part depending on how far the run is. I think I paid somewhere around $12 per foot to have the line run and I already have natural gas for heating. The run was about 50 ft. One thing to check - Make sure the logs are sized to the room. That was my problem, the logs wouldn't generate enough heat for the room and I was forced to go to an insert (which is much nicer). My room is apprx. 14 wide by 24 long with a sloped ceiling from 8 ft to about 14 ft high.
Why does my soup jump in the microwaves?
Ok so in our old microwave my soup always jumped and I just thought it was because it was an old microwave but now that we have a new microwave it still happens! When its cooking the microwave will make a weird noise and the soup will jump/bounce and make a mess. I thought maybe it was the turn table so I tried putting it on the flat surface of the microwave but it still jumped. What is the cause of this?
Why do I experience an electric shock whenever I touch a metal object, especially in the winter time?
Why do I feel electricity shock when I touch a metal in winter?When you move, you generate a static charge by an effect called triboelectric effect.Two objects come into contact, one has a greater affinity for electrons than the other, so that one comes away with more electrons. This has a greater effect on nonconductors, as the charge tends to stay put, then. But one can be a conductor like your body, plus charge can transfer from nonconductive clothing or shoes to your body.Friction is not necessary, but it is an effective way of making and breaking contact between surfaces very quickly. Thanks for the animations from Electro Static Technology, Inc.Electric charge and distance raise the voltage. So you walk around the house, your shoes touching the floor, your clothes rubbing each other and your body, maybe you pet your cat or run a comb through your hair. Then you touch something metal that is grounded, and you discharge in a very high but short current pulse, high enough current so you can feel it and hear the snap.But humidity in the air tends to make the surfaces of conductors leaky insulators, so charge will drain off. It takes at least 5kV before you will even notice the spark. Cold air can’t hold as much moisture as warm air. So your furnace or heater is warming air that was cold, so you end up with very dry warm air. This allows much higher voltages of static charge to build up on you and other things.Artificial fabrics (rayon, polyester, etc.) are excellent insulators and so are the worst offenders. Natural fibers tend to be a bit hygroscopic (moisture friendly) and so aren’t as bad at generating static charge. Dryer sheets and fabric softener prevents static cling by leaving your clothes a little electrically conductive.It is very common these days for manufacturers to add substances to plastic items to make them slightly conductive, to limit the buildup of static charge. Combs and brushes, for instance. When I was a boy, I had to get my comb a little wet before using it, or my hair would stick up like I’d been holding a Van de Graaf generator.Thanks for the image go to Making Electricity! Van De Graaff Generators and Tesla Coils.
Can leaving the oven on actually start a fire?
There is the risk of cooking unattended, which can lead to a fire. Cooking needs to be carefully watched. Perhaps a reason why most every microwave oven has a cook timer on it, so as to not cook the food for too long.There is also the risk that any high-powered appliance could have the potential to overheat and cause a fire. An electric clock that does not get warm at all, is a lot less likely to catch on fire, than a hair dryer, when those are left on unattended, well unless there is a short circuit or something.There is an added risk, that ovens were not designed to be a heat source for heating a cold home. I have heard of people having a fire, because they left the oven door open for too long, and the nearby wood cabinets overheated and caught on fire. When I use the oven, even though I am finished with the oven and have turned it off, I still close the oven door after taking the food out of the oven, and let it cool gradually, rather than leaving it open and having that blast of heat or risk of burning my hand.just a few internet images
What exactly happened with my car (what mechanically went wrong)?
fairly cheap is no longer any the question, should have stopped when the transmissions differential popped. no from the long post i just read i would say your looking at a new engine because that one blew up, the piece of metal hanging out of the engine is a rod the cylinder heads are toasted and your transmission would make a good boat anchor. if it got so hot as to melt wires like you said your also looking at a new wiring harness as well. so i would venture a guess as it to be around ummm 2500.00-4000.00 dollars. making it cost more then the car is worth total... best thing to do is look for another car sorry but that puppys dead.