Re: [ARSCLIST] lacquer transfer

[George Brock-Nannestad <pattac@xxxxxxxx>]

From: Patent Tactics, George Brock-Nannestad

Brandon Burke wrote:

> Seems more than a little invasive to me. I think a pass with a  
> trusted (read: mild)
> cleaning solution in a K Monks is about as far as you want to go with  
> regards to
> anything wet.
> 
> I'm all for doing whatever you can to secure a quiet capture; among  
> other reasons,
> to avoid the need for excessive digital "cleaning" in post. Thinking  
> long-term however,
> coating or spraying a disc to make it quieter at playback sounds like  
> it introduces more
> problems than it stands to solve..
> 

----- even before digital and when the disc was all you really had, John R.T. 
Davies recommended unhomogenised milk for wet playback of lacquers. The 
globules of fat were less prone to "smearing". Subsequent cleaning would be 
by a mild detergent.

Kind regards,


George

> 
> 
> On Nov 19, 2008, at 3:14 PM, joe@xxxxxxxxxxx wrote:
> 
> > Has anyone ever found a coating or spray that can be applied to a  
> > lacquer to make for a quieter transfer, besides water?
> >
> > I seem to recall a presentation by Seth in which he mentioned  
> > Tascam pinch roller lubricant or cleaner as a possibility.
> >
> > joe salerno
> >
> >
> > Eric Jacobs wrote:
> >> Hi Jeff,
> >> Just a note on Audiodisc blanks...  In my experience the Audiodisc
> >> blanks seem to have more plasticizer than some of the other blanks.
> >> This is purely anecdotal from transfering many hundreds of these
> >> discs.
> >> The extra abundance of plasticizer has benefits - the recordings
> >> tend to be quieter than other blanks, and they seem modestly less
> >> prone to laminate shrinkage and crazing due to plasticizer loss.
> >> The down side is that they are more prone to palmitic and stearic
> >> acid formation than other brands of blanks.  Again, this is purely
> >> anecdotal / observation.
> >> Per my other email, stable temperature and low humidity are more
> >> critical for Audiodisc blanks than perhaps other brands (although
> >> stable temps and low RH are important for storing all lacquer
> >> discs).
> >> Last, but not least, I would strongly recommend storing these discs
> >> in base-buffered sleeves.  The base buffer in the sleeve will help
> >> minimize or at least stave off the autocatylitic reaction associated
> >> with palmitic and stearic acid formation, particularly if you don't
> >> have the driest of storage conditions.
> >> Eric Jacobs
> >> The Audio Archive, Inc.
> >> tel: 408.221.2128
> >> fax: 408.549.9867
> >> mailto:EricJ@xxxxxxxxxxxxxxxxxxx
> >> http://www.TheAudioArchive.com
> >> Disc and Tape Audio Transfer Services and Preservation Consulting
> >> -----Original Message-----
> >> From: Association for Recorded Sound Discussion List
> >> [mailto:ARSCLIST@xxxxxxx]On Behalf Of Jeffrey Martin
> >> Sent: Wednesday, November 19, 2008 12:10 PM
> >> To: ARSCLIST@xxxxxxxxxxxx
> >> Subject: [ARSCLIST] Lacquer disc storage conditions
> >> I'm trying to advise a colleague who has recently discovered some  
> >> 1960s-era
> >> lacquer discs in her collection. (They're recorded on Audio Devices
> >> Audiodiscs.)  What are the preferred conditions for storing  
> >> lacquer discs?
> >> She has access to cold storage (40 degrees F), cool storage (55  
> >> degrees F)
> >> and obviously standard office HVAC storage.
> >> Many thanks,
> >> Jeff Martin
> >> Chicago, IL
> 
> ____________________________________
> Brandon Burke
> Archivist for Recorded Sound Collections
> Hoover Institution Archives
> Stanford University
> Stanford, CA 94305-6010
> vox: 650.724.9711
> fax: 650.725.3445
> email: burke@xxxxxxxxxxxxxxxxxxx