|
General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc. |
|
Thread Tools |
8th Oct 2022, 7:00 pm | #81 | |
Dekatron
Join Date: Feb 2007
Location: Lynton, N. Devon, UK.
Posts: 7,059
|
Re: Demagnetizing CD's !!
Quote:
But coming back to CD's, and magnetisation thereof, is there the remotest possibility that bit error rate, needing correction or (potentially audible) interpolation, could be affected due to the Faraday effect? I can't see it myself, but it's the only plausible mechanism I can think of so far. |
|
8th Oct 2022, 9:13 pm | #82 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,799
|
Re: Demagnetizing CD's !!
If so, you could corner the market by selling them little "Faraday Screens" to surround their laser heads... would boron wire be exotic enough?
But this is all comedy. We all know real audiophiles don't touch CDs. They stick to stabby diamond things following plastic serpentines. David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
8th Oct 2022, 9:35 pm | #83 |
Nonode
Join Date: May 2007
Location: Redruth, Cornwall, UK.
Posts: 2,562
|
Re: Demagnetizing CD's !!
OT but I am curious to know if it is possible for helium to enter a radio valve glass envelope and render it unserviceable.
Regards, Symon |
8th Oct 2022, 10:58 pm | #84 |
Dekatron
Join Date: Feb 2007
Location: Lynton, N. Devon, UK.
Posts: 7,059
|
Re: Demagnetizing CD's !!
I'd think yes... Small bulbs for helium-rich atmospheres (diver's decompression chambers for instance) were made with super-thick glass.
|
9th Oct 2022, 9:00 am | #85 | |
Dekatron
Join Date: Feb 2007
Location: Lynton, N. Devon, UK.
Posts: 7,059
|
Re: Demagnetizing CD's !!
Quote:
I'd go for bismuth wire, because it's diamagnetic (slipping in a bit of physics to add a bit of false credibility). Any reason to justify the boron would be welcomed! I'm also thinking that each screen should come accompanied by a little compass, to align the CD player so the laser head tracks in an east-west direction. No point in demagnetising everything if there's a possibility of it getting magnetised again during use... |
|
9th Oct 2022, 9:11 am | #86 |
Banned
Join Date: Jun 2015
Location: Mareeba, North Queensland, Australia
Posts: 2,704
|
Re: Demagnetizing CD's !!
What about elevation Kalee .
Sheesh !!! Joe |
9th Oct 2022, 9:40 am | #87 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,799
|
Re: Demagnetizing CD's !!
Elevation makes electrolytic capacitors dry out faster (actual fact from avionics!) so elevation might not be so good.
Otherwise the idea of a CD player suspended from a high altitude helium balloon, tethered by wires bringing the audio down to ground level would be appealing. Solar powered of course, needing a very long range remote control. Multidisc changers are so non-high-end that Igor will have to winch the balloon down to change discs. Will also sell a LOT of high end interconnect cable. david
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
9th Oct 2022, 9:49 am | #88 | |
Dekatron
Join Date: Aug 2003
Location: near Reading (and sometimes Torquay)
Posts: 3,086
|
Re: Demagnetizing CD's !!
Quote:
|
|
9th Oct 2022, 10:22 am | #89 | |
Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 4,941
|
Re: Demagnetizing CD's !!
Quote:
So in the fullness of time, if you get some grit in your CD mechanism, it might be me ;-) Craig
__________________
Doomed for a certain term to walk the night Last edited by Craig Sawyers; 9th Oct 2022 at 10:29 am. |
|
9th Oct 2022, 10:57 am | #90 |
Moderator
Join Date: Dec 2010
Location: Exeter, Devon and Poole, Dorset UK.
Posts: 6,823
|
Re: Demagnetizing CD's !!
This has had a good run and really belonged in the Audiophoolery thread so it's time to close.
Cheers Mike T
__________________
Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk |