Ultrasonic clean CDs

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karatestu
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#16 Re: Ultrasonic clean CDs

Post by karatestu »

I have cleaned a CD in an ultrasonic bath before.

It sounded much better after so I decided to do it again and put the heater on. Big mistake, the bloody top label came off and now it wont play. Well it will but it sounds like Norman Collier and nothing like Sheryl Crow.

I wont be doing it again.
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Dave the bass
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#17 Re: Ultrasonic clean CDs

Post by Dave the bass »

Pssst, Nick, you missed out the extra 2% where I need help with the maths.
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andrew Ivimey
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#18 Re: Ultrasonic clean CDs

Post by andrew Ivimey »

giggles!
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Nick
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#19 Re: Ultrasonic clean CDs

Post by Nick »

Dave the bass wrote: Wed Jul 05, 2017 5:11 pm Pssst, Nick, you missed out the extra 2% where I need help with the maths.
Well, we all know that 1 + 1 = 3 for large values of 1
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andrew Ivimey
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#20 Re: Ultrasonic clean CDs

Post by andrew Ivimey »

One could almost say 'pregnant' or 'generous 1s.
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#21 Re: Ultrasonic clean CDs

Post by Dave the bass »

You brutes! I've been reading Merlin Blencowe's latest tome and trying to get my head around imaginary numbers and phase relationships an' now you's lot are telling me theres 'generous' and 'pregnant' 1's too.
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ed
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#22 Re: Ultrasonic clean CDs

Post by ed »

Nick wrote: Wed Jul 05, 2017 5:18 pm
Dave the bass wrote: Wed Jul 05, 2017 5:11 pm Pssst, Nick, you missed out the extra 2% where I need help with the maths.
Well, we all know that 1 + 1 = 3 for large values of 1
Ah, but you're ignoring the multiplacative identity
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Dave the bass
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#23 Re: Ultrasonic clean CDs

Post by Dave the bass »

ed wrote: Wed Jul 05, 2017 6:00 pm
Ah, but you're ignoring the multiplacative identity
We are?

We are!

Yes.

Are we?
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pre65
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#24 Re: Ultrasonic clean CDs

Post by pre65 »

karatestu wrote: Wed Jul 05, 2017 5:10 pm I have cleaned a CD in an ultrasonic bath before.

It sounded much better after so I decided to do it again and put the heater on. Big mistake, the bloody top label came off and now it wont play. Well it will but it sounds like Norman Collier and nothing like Sheryl Crow.

I wont be doing it again.
Thanks Stu for details of your experience.

When you say it sounded much better after the first (cold) clean can you expand on that at all ?
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andrew Ivimey
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#25 Re: Ultrasonic clean CDs

Post by andrew Ivimey »

Oh I spect so our DtB.
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Nick
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#26 Re: Ultrasonic clean CDs

Post by Nick »

ed wrote: Wed Jul 05, 2017 6:00 pm
Nick wrote: Wed Jul 05, 2017 5:18 pm
Dave the bass wrote: Wed Jul 05, 2017 5:11 pm Pssst, Nick, you missed out the extra 2% where I need help with the maths.
Well, we all know that 1 + 1 = 3 for large values of 1
Ah, but you're ignoring the multiplacative identity
Always best to do that I find.
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#27 Re: Ultrasonic clean CDs

Post by ed »

I did mean multiplicative identity..but you can ignore either I don't think I care much anymore....
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#28 Re: Ultrasonic clean CDs

Post by karatestu »

pre65 wrote: Wed Jul 05, 2017 7:06 pm
karatestu wrote: Wed Jul 05, 2017 5:10 pm I have cleaned a CD in an ultrasonic bath before.

It sounded much better after so I decided to do it again and put the heater on. Big mistake, the bloody top label came off and now it wont play. Well it will but it sounds like Norman Collier and nothing like Sheryl Crow.

I wont be doing it again.
Thanks Stu for details of your experience.

When you say it sounded much better after the first (cold) clean can you expand on that at all ?

I experienced more atmosphere of the recording. The cd was fairly grubby and so i was not surprised it got better. It skipped on one track and this was much improved after the first clean. There must have been more information coming through..

As things in an ultrasonic bath vibrate along with it, i think it is important to rest the cd on something that will protect it.

Stu
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pre65
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#29 Re: Ultrasonic clean CDs

Post by pre65 »

I've just ordered a 2.5 Ltr ultrasonic cleaner.

Not specifically for CD cleaning but I will give CDs a go. :)
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The Stratmangler
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#30 Re: Ultrasonic clean CDs

Post by The Stratmangler »

pre65 wrote: Mon Apr 02, 2018 2:28 pm I've just ordered a 2.5 Ltr ultrasonic cleaner.

Not specifically for CD cleaning but I will give CDs a go. :)
Why?
These work really well

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Chris :happy3:
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