What I meant was to exclude the variations in fuse contact when swapping. If you just solder the holder around, that would give a cleaner comparison.
jan
Yesterday on TV, I watched 'Bottle Shock'.
More amusing flic, imo.
(Alan 'of Nottingham' Rickman, Dennis 'Ray Bones' Farina, good 'ol Bill Pulman, '08)
I think there are several reasons and it will be a combination of these. The ballistics of the lens assembly comes to mind which will be very different on every player. I remember a 3 day Sony course where we looked at Bode plots for the servo loops, the number crunching was mind blowing and not really needed from a service point of view. Interesting though.
Of course it could just be that the player concerned has played that many scratched CD's that the error correction circuit has filled up and there's no room for any more
Is this the Stereophile article that you gents are hunting about the study of the green marking pen?
CD: Jitter, Errors & Magic | Stereophile.com
Google is my best friend!!!
CD: Jitter, Errors & Magic | Stereophile.com
Google is my best friend!!!
Actually they just fall off the end of the shift register and pile up on the chassis floor. Some players have a pull-out tray that the diligent user can empty periodically. Recycling is a problem in some counties.Of course it could just be that the player concerned has played that many scratched CD's that the error correction circuit has filled up and there's no room for any more
Indeed. The stockpile of unused negative half cycles that accumulate at power stations is another big worry.
oh, you like your drugs. I've kind of gathered that from your posts.
True, I did coke, LSD, uppers, downers, and inbetween.
Never crack or heroin though, I may be crazy, but not a fool, and I've never paid a single nickel for dope.
Anyone who takes homeopathic and/or regular medication, without an ail present, is a nut-case.
(Irrational example 1 on your shopping list)
If not a screw-loose, then if used by a layman, 'when possible' is a highly subjective term. (Irrational example 2)
I used a 500 mA fuse at 250Ma. This resulted in about 375 mV across the fuse. Distortion as I recall was a few percent. So the amp and transformer distortion are much less. (My AP is PCMCIA interface and the actual IBM PC I was using finally died. The cable connecting the screen to the smarts failed. So there are some files I will have to hunt for.)
So if you can hear 20mV of distortion on an AC line... -75 dB of power supply variation before the filter caps! So in a poorly designed supply with a small high resistance fuse the issue might approach being heard. But it is freaking simple to avoid it! If i get around to it I will try to measure fuseholder resistance. But it should be just milliohms.
So one important conclusion of the measurements is that all the power wiring from the power plant, through your house wiring, AC cord and connectors and switch are much less by almost an order of magnitude than the fuse in some cases!
The issue of CD magic is how thin the film is, not per se the conductivity. Of course the thinner the film the high the resistance, so the less the heating. The we would need to know the spin rate for the magnet etc. Now a better way to test if CD's can be annealed and improve the sound would be a microwave oven or even more practical a dip in hot water. If the gizmo produced heat you gotta think someone would have noticed!
So if anyone wants to test the theory all you need is two identical CD's, listen to them both to see if you can hear a difference and then dunk one in cold water and the other hot. A lot easier and less expensive than waving a magnet.
Working around large speaker magnets I have wiped credit cards, door keys, etc.
As mentioned it is the fuse resistance that is dominant! But I may get around to trying that.
ES
Is this the Stereophile article that you gents are hunting about the study of the green marking pen?
CD: Jitter, Errors & Magic | Stereophile.com
Google is my best friend!!!
One thing that comes out is how extremely complex this is!
And I was also happy to read:
"Fortunately, the CD format incorporates extremely powerful error detection and correction codes that can completely correct a burst error of up to 4000 successive bits. The reconstructed data are identical to what was missing. This is called error correction. If the data loss exceeds the player's ability to correctly replace missing data, the player makes a best-guess estimate of the missing data and inserts this approximation into the data stream. This is called error concealment, or interpolation. "
Correcting perfectly bursts of up to 4000 bits in length is no mean feat.
jan
Around here the negative half cycles pile up on the east coast. The positive ones on the west coast. That accounts for the great polarization found in this country.
We did try shipping them by trucks and even freight trains, but it turns out when you get too many of the same charges they repel each other and break out of their containers.
Around here the negative half cycles pile up on the east coast. The positive ones on the west coast. That accounts for the great polarization found in this country.
We did try shipping them by trucks and even freight trains, but it turns out when you get too many of the same charges they repel each other and break out of their containers.
Just hire a few cheap, skanky protons and throw 'em in. That'll keep 'em contained for the duration.
se
And this touches on the problem in aviation, that near-disaster when all of the several Polish passengers went to look out at the scenery from the right-side windows, and the aircraft began to lurch and vibrate ominously.
Of course it was realized that the Poles were in the right half of the plane.
Of course it was realized that the Poles were in the right half of the plane.
But plenty of ordinary herbs and spices are quite medicinal, turmeric,saffron, etc. quite well documented and not based on folklore only. One must remember that homeopathy is based on dilution to virtual nothingness i.e. magic not herbal medicine.
At last someone who got my joke about magic resistors!
SY. That was fuse contribution. The difference between forward and backward should be almost 2 orders of magnitude less. So if you can't hear -115dB issues.....
For the post I missed before, rectifiers don't remove power line noise in most designs. The exception is of course in the blowtorch power supply. Filter capacitors work over several decades of frequency but power line sag is too low f.
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