What would cause my AMP to smoke?
Speaker smoking: the speaker cannot handle the power that the amplifier is outputting. In the case of a guitar amplifier, this happens easily because the amplifier could be rated at 25 W and the speaker could also be rated at 25 W, but when you overdrive the amplifier, you’re essentially doubling the output power, so you’re overpowering the speaker causing it to smoke, and then fail.An amplifier can blow (causing smoke) in a number of ways:The output is shorted - this drives as much current as the power supply can output (often > 400A) through the output transistors, causing them to fail. The way a MOSFET fails is different to how a BJT fails, and BJT’s fail 100% of the time with a shorted output, if there are no measures taken by the manufacturer to prevent this (and in those cases, they fail anyway).The biasing circuit could get old, causing an increasing bias current in the output stage, eventually leading to failure. This means that something gets old and causes the amplifier to heat up and fail.The amplifier is operated in extreme heat - this prevents the heatsinks from dissipating enough heat, and the amplifier can easily fail.Valves tend to burn out like light bulbs. They can be quite fragile, so if are bumped just right, can fail at the next turn on.Other than this, there are often component failures where a component isn’t sufficiently spec’d, say for example a 1/4 W resistor operating at 1/4 W all the time, or a 16 V capacitor operating at 16 V all the time. Or a transistor operating at high temperatures all the time. These components will eventually fail, causing smoking of some sort.I’ve encountered an issue which happened on a set of Creative Gigaworks (S750) where the glue used to hold components together became conductive when heated up. This caused a lot of S750’s to fail. However, it was possible to repair the fault.
What causes fuses to blow?
Various reasons can cause a fuse to repeatedly blow. A fuse is placed in a circuit as a safety measure and is expected to blow if the conditions against which it is to guard are violated. The conditions under which fuses may blow repeatedly are as follows:wrong power rating of fuse- a fuse placed at a certain point in a circuit monitors the current passing through that point and is rated as such to prevent a flow in excess of the limit that might be detrimental to the well-being of the circuit elements beyond that point, however, putting the wrong rating of fuse (under-rated) might cause it to give in even under normal circuit conditions.abnormal circuit conditions- there may be short circuit or abnormal conditions due to some failure which might be causing the circuit to draw heavily on the system in excess of nominal value rated for the circuit.wrong type of fuse- some circuits are designed to be protected by a slow blow fuse and this can be a problem if one replaces with a fast blow fuse. Under certain given conditions, a circuit may have a reason to delay the cutting off of power till some modules are operated into rest position and thus necessitate a slow blow fuse to cater for that and this must still be replaced with one of the same kind for good operation of the circuit and to have the desired effect.dead short-circuit : some component might be failing under load (perhaps due to overheating or something) and creating a path of less resistance and thus causing the circuit current to rise to above critical levels and subsequently blowing the fuse. It might be an intermittent fault that will need to be put under observation. Some trouble-shooting tip might be to have a can of cool-jet or some other compound to give cooling effect to spray on suspicious components to find out the culprit, if it is a case of overheating.
What causes a old tube radio to smoke?
Gearbox is correct. And I would also add to be sure & check the diodes in the Power Supply (and check the capacitors & resistors found there as well). ('smell' the transformer, it my be burnt up and have a burnt smell)
Do earplugs or headphones cause vertigo?
First, I have worn headphones for years without a problem. My music is typically quiet and either classical or jazz. I'm not damaging my hearing in any way. About 2 years ago, I started wearing earplugs at night because of partying neighbors. I also sometimes wore them in the study rooms or library at school when it was too noisy to concentrate. It was fine for about a year, but then I noticed I kept getting dizzy whenever I wore them for very long. I didn't wear them for a couple of months, and the dizziness went away. I had lost my old headphones, but I finally got some new headphones so I could at least listen to music on Pandora while I worked, but I am now getting dizzy even with those. The other night, everything started suddenly feeling like it was just moving slowly to the left, and I got incredibly nauseous and hot. It receded somewhat when I took them out, but I was still somewhat lightheaded for the next 5-10 minutes. Can earplugs or headphones cause vertigo, or might the timing be coincidental? Why might this have started now when I have used headphones for years? If they are causing it, is there something I can look for in a pair of headphones that would make it less likely to happen?
Can a bad car battery cause engine misfire?
So everyone on hear that says a weak battery cannot cause a misfire is wrong especially with a Subaru!!! I recently ran into this exact same problem with my 2013 Subaru Impreza 2.0L. My car began to have a rough idle anytime I was sitting at a stop light. Then the CEL came on for a misfire in the cylinder and the dealership wanted me to do $1000 worth of work replacing the coil packs and spark plugs. I specifically asked them if a weak battery would cause the problem and they said no as well. I knew my battery was weak because I couldn't leave my car radio on for 5 min with out the battery dying. All battery tests I did said the battery was fine. Today I finally got sick of having to worry about it not starting from leaving the door open or the radio on while it wasn't running. Sure enough my check engine light turned off and now my car has greatly improved performance! Also my car now idles like it is supposed to. I'm thinking my fuel pump was not getting enough power which caused the misfiring. Either way the problem is fixed and I suggest looking into the battery first!
Why does my car stereo smoke when plugged in?
I recently had a new car stereo and alarm professionally installed Due to a break-in. However, whenever the stereo is plugged in to the harness it starts smoking and no-one knows why. Also note that the panic button doesnt work on the alarm I had installed. I'm taking it back so the installers can work on it, but when I initially took it in they had no clue what was causing the trouble. Also, it rained the day after they smashed my window and the rain caused damage to one of my front speakers. Is this a related problem? Thanks
Does a desktop computer give off radiation when it is turned off?
The only radiation that a computer can emit is RF (Radio Frequency) radiation which is harmless. The RF can interfere with other electrical devices but usually won't since all of the connections that can leak RF are shielded, such as your I/O panel on the rear of your system. When the computer is off it emits no radiation. The old CRT (Cathode Ray Tube) screens use an electron gun that fires electrons at the inside of the screen that would leak through to the outside but were usually diffused by the air between the screen and the person viewing it. That's the reason parents would tell their children not to sit too close to the TV when watching it.