Finding an exact one with the correct plug may be difficult. If it is just a simple power supply - and not an LED driver/sequencer - any of the correct spec should do if you are up to fitting a matching connector(s)
Loads on Ebay - both line male and female. They were used on car radios too.
What do you mean by out of phase ?
Oh dear, dear, dear.
When the cone on the left is pushing, the one on the right is pulling. Then the brain might decide the sound is coming from behind you.
So yuop don;t knopw do you. Are you saying that getting the speaker wires crossed is out of phase ? You do know that the human ear can;t detect phase don't you , no you probba ly don't
The human ear is insensitive to a constant relative phase change in a stati c waveform. For instance, you cannot here the difference between a steady s awtooth wave (which contains all harmonic frequencies) and a waveform that contains the same harmonic content but with the phase of the harmonics dela yed by various (but constant) amounts. The second waveform would not look l ike a sawtooth on an oscilloscope, but you would not be able to hear the di fference. And this is true no matter how ridiculous you get with the phase shifting.
make a differnce.
That requires a reference point, so how do you know which one is out-of-pha se. The human ear can't detect phase all it can do is detect differncies which does NOT detect phase, because the human ear detects volume not phase, so what happens when you have two signals that are out of phase say through le ft and rught channels is that yuo get cancallatiuon you are NOT detecting p hase but hear the result is two signals cancelling each other out and there for lowering the amplitude, and that's it.
Someone with a brain, could, given the chance to work it out would know that what they are detecting is amplitude NOT phase when this occurs, this is how noise cancelling works it takes the unwanted signal inverts it (puts it out of phase) and adds.
or yuo coulkd tell me exactly what happens when you hear two signals out of phase by 180 deg, what tells you how far out of phase they are ?
Can you tell 180 from 90, from 135, I dout it as human brains can't all they can detect is amplitude or volume.
You can detect differncies but only in volume/amplitude you can NOT dertect what phase they are at.
Not a fan of Russ Andrews, then? Many claim to be able to hear absolute phase. ;-)
hich does NOT detect phase, because the human ear detects volume not phase, so what happens when you have two signals that are out of phase say throug h left and rught channels is that yuo get cancallatiuon you are NOT detecti ng phase but hear the result is two signals cancelling each other out and t herefor lowering the amplitude, and that's it.
Oh yes all the time, who'd be daft enough to buy cheap cables.
I even get them pre-burnt in, don;t want to take any chances. :-)
So now you are telling us that humans can't detect which direction a sound comes from and that all the sound systems like stereo don't work.
You are harry!
As a hint if you hear a sound off to, say, the left it will be delayed and therefore be out of phase in the right ear compared to the left ear. You had better believe that most people can tell this and we probably wouldn't have survived to be humans if our ancestors couldn't.
Now what else do you want to be wrong about when you are trolling?
Try the following experiment using reasonably decent equipment.
Use a recording with a well defined stereo image for the test. Also a mono recording of speech - a newsreader, say (or a stereo recording where the speech originates from the centre). It doesn't matter which.
Play both recordings with the speakers correctly phased and note how you can clearly define the positions of all the various instruments across the sound stage and also pinpoint the solo voice in the centre.
Now reverse the phase on one speaker (only) and repeat the listeng test. You will notice a loss of bass response and be unable to locate the origin of any of the instruments or the solo voice.
This was a standard test during the experimental stereo broadcasts of the 1950s on Saturday mornings that used BBC TV sound for one channel and the Third Programme for the other.
This was preceded by the announcer speaking from the centre, left and right of the sound stage in turn.
That is NOT phase you idiot.
Do you know the differnce between phase and amplitude ?
Didn't think so.
Why if the distance is the same ? A delay does NOT mean it is out of phase.
Are yuo suggesting that thinder and lighting are out of phase and don;t happen at the same time because you see the lightning first ?
That is nothing to do with phase.
you're an idiot and you've got it wrong.
what do yuo mean by correctly phased ?
this is because the amplidues are cancelled out it is how noise cancelling works.
Try this use two signals one 30 degrees out of phase with the other and see if you can tell which is which. Which is out of phase and by how much it is out of phase.
But little to do with phase and detecting it.
Just like sticking yuor tongue on he mains you can not detect it's phase. Take the label of the red, blue, yellow phases yuo can;t tell with a meter which is which, only by comparing two of them can you tell which is at peak and which insn't at that moment in time.
You have your ears front and back then?
Yes it does.
You are an idiot for comparing the two.
Yes it has!
You are an idiot and you get everything wrong!
No at the side like most people.
So in a 3 phase system where each is out of pahse with the other which started first red, blue or green ?
And not a brilliant one given most used entirely different amps and speakers for each channel. ;-)
Ping pong sort of worked, though.
Despite only aving an AM radio for the Third Programme feed, my memories of these tests was very impressive.
You really don't have clue, do you?
If you really need to have it explained to you, when playing a mono source, the cones of both speakers move in the same direction all the time so that the sound produced by one speaker is IN PHASE with sound produced by the other.
If using separate speakers, the connections to the amplifier and the speakers are usually colour coded (or marked + and
-) so it isn't rocket science to get it right.
I think it's time you joined Wodney in my kill file - you should get on well together ...
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.