Hi, Marie, Thanks for responding! So this is an isopropyl drip during unwinding to help loosen the inter-layer adhesion? Do you apply it just where the tape separates from the pack? I think I'd like to try Peter Copeland's "Grandfather Clock" approach--slightly modified. Thanks! Cheers, Richard On 2013-08-20 11:58 PM, Marie O'Connell wrote: > Hi > > I have found using isopropyl alcohol dripped on using a Q-stick frequently, > a pellon wipe and a re-modified low friction Studer B67 very useful in > getting the tape on to the take-up reel before even trying to get a signal > helpful. At least I know I will generally not end up with pull-outs. Once > it has freed up then I have had few problems after that. Patience is a > virtue in the first part! > > It doesn't surprise me if this is another 'bad batch' that left the factory > all those years ago. > > Cheers > Marie > > > On Wed, Aug 21, 2013 at 2:31 AM, Richard L. Hess > <[log in to unmask]>wrote: > >> Hello, Paul, Corey, and Jeff, >> >> Thanks for all your replies! I welcome any additional input! >> >> Paul, I believe she was using a ReVox PR99 for this particular playback, >> though there is also an A807 available. >> >> Corey, I agree that the Last Factory products as well as Marie's isopropyl >> drip or my (and others') decamethylcyclopentasiloxane (D5) additional >> lubrication will all work for playback. >> >> This, however, differs from "simple" squealing with the tape rolling off >> under its own weight. In this case as the tape is unspooled, the weight of >> the hanging tape is insufficient to immediately leave the pack, the >> underlying tape layer does hold onto the tape somewhat. >> >> Jeff, I agree that it does sound similar to Scotch 201 syndrome but what >> initially put me off from that is it is a brown oxide tape in a Soundcraft >> box (though we are not certain it is Soundcraft, obviously). >> >> What worries me most about this is that with normal tape pack stresses, >> this adhesion may be worse towards the hub and, at some point, as with 201, >> may result in pull-outs. Scotch 201 for the casual reader is an early 1960s >> tape, the first in the Dynarange series of lower noise with higher output. >> It is a Standard Play (1200' on a 7-inch reel) tape with black mag coat, no >> back coat and an ACETATE base film. 202 and 203 were on a polyester base >> film and were standard play and long play (1800'), respectively. >> >> I am still of a mind (as I wrote back in 2008 and before) that loss of >> lubricant has yet to be proven and that binder degradation (what I proposed >> we should generically call "soft binder syndrome"--which can have many >> manifestations including SSS and probably this) has been shown to be a >> culprit. >> >> To return to this a bit, tapes that suffer what had commonly been called >> loss of lubricant (LoL) showed a typical full lubricant load under >> laboratory analysis. Other laboratory tests showed that the glass >> transition temperature of the coating had fallen to about 8°C which is why >> playing the tape at 4°C alleviated the squeal problem. HOWEVER, at least my >> concept of LoL has never been accompanied by the concept of the tape not >> rolling off cleanly under its own weight. The adhesion does speak to, well, >> some adhesive. >> >> Though we did not discuss smell, we revisited the possibility of external >> contamination several times. Within the first few minutes I asked, "what >> vintage of Coca Cola do you think fell on the tape?" She indicated there >> was no evidence of any damage in this regard. >> >> We did discuss the tape that Nathan Georgitis brought to one of my >> seminars a few years ago which I do not recall showing any significant >> signs of water damage, but had spent some time in an attic which apparently >> had open windows for an extended period and it squealed and suffered >> pullouts--fortunately mostly on the unrecorded track--but other than the >> pullouts, I don't recall an overall adhesion layer-to-layer. However, his >> tape was, I believe, polyester Melody, which was Scotch's answer to >> Shamrock--an off-brand like Irish/Orr/Ampex's Shamrock which were rejects >> from the main brand's line of tape. >> >> So, there are two questions in my mind: >> (1) How to spool the tape off without risking damage from pull-outs. >> http://richardhess.com/notes/**2006/05/26/binder-adhesion-to-** >> back-of-next-layer/<http://richardhess.com/notes/2006/05/26/binder-adhesion-to-back-of-next-layer/> >> >> As noted in that 2006 blog post, cold dry storage for an extended period >> may help as well as very slow unwinding as pioneered at the British Library >> under the late Peter Copeland. >> >> (2) How to play the tape without squealing. These blog posts all discuss >> the problem and several solutions (pun intended) >> http://richardhess.com/notes/**2006/07/12/the-beginning-of-** >> 3m-175-squeal/<http://richardhess.com/notes/2006/07/12/the-beginning-of-3m-175-squeal/> >> http://richardhess.com/notes/**2007/11/08/success-with-** >> squealing-shamrock-031-tape/<http://richardhess.com/notes/2007/11/08/success-with-squealing-shamrock-031-tape/> >> http://richardhess.com/notes/**2012/10/01/playing-a-** >> squealing-reel-of-sony-pr-150-**tape-using-d5/<http://richardhess.com/notes/2012/10/01/playing-a-squealing-reel-of-sony-pr-150-tape-using-d5/> >> http://richardhess.com/notes/**2006/03/09/wet-playing-of-** >> reel-tapes-with-loss-of-**lubricant-a-guest-article-by-**marie-oconnell/<http://richardhess.com/notes/2006/03/09/wet-playing-of-reel-tapes-with-loss-of-lubricant-a-guest-article-by-marie-oconnell/> >> >> This is a comprehensive list of degrading tapes >> http://richardhess.com/notes/**formats/magnetic-media/** >> magnetic-tapes/analog-audio/**degrading-tapes/<http://richardhess.com/notes/formats/magnetic-media/magnetic-tapes/analog-audio/degrading-tapes/> >> >> My tape degradation paper from 2008 is where the concept of cold playback >> is best developed >> http://www.richardhess.com/**tape/history/HESS_Tape_** >> Degradation_ARSC_Journal_39-2.**pdf<http://www.richardhess.com/tape/history/HESS_Tape_Degradation_ARSC_Journal_39-2.pdf> >> >> I hope that helps and I hope to be actually getting my hands on this tape >> in the next month or so. >> >> Cheers, >> >> Richard >> >> >> On 2013-08-20 2:45 AM, Paul Stamler wrote: >> >>> One possibly-relevant question: what machine are you using to play the >>> tape? >>> >> >> On 2013-08-20 1:15 AM, Corey Bailey wrote:> As you know, I use Last Factory >> >> As you know, I use Last Factory >>> lubricant and have had good results with both acetate backed tape and >>> magnetic film. I suspect that Marie O'Connels method would work as >>> well. One could apply the alcohol with an eye dropper instead of >>> Marie’s setup for a one-off transfer. >>> >> >> On 2013-08-20 2:39 AM, Jeff Willens wrote:> Hi Richard, >> >> Do you know if there is any odd smell to the tape / tape box? Could some >>> foreign substance other than water have come in contact with the tape or >>> box? >>> >>> Beyond that, it sounds to me like it's a loss of lubricant in the >>> acetate tape, and/or a variation of the "201 syndrome", since that's >>> what the symptoms most resemble. Does the pulling get worse the further >>> in you wind it? >>> >> >> Richard L. Hess email: [log in to unmask] Aurora, >> Ontario, Canada 647 479 2800 >> http://www.richardhess.com/**tape/contact.htm<http://www.richardhess.com/tape/contact.htm>Quality tape transfers -- even from hard-to-play tapes. >> > Richard L. Hess email: [log in to unmask] Aurora, Ontario, Canada 647 479 2800 http://www.richardhess.com/tape/contact.htm Quality tape transfers -- even from hard-to-play tapes.