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The way I see it, 10 years ago 6-8 hours was enough for me usually to get a tape going, but now 24 hours is a minimum with 2-4 days normal. At this rate, how many days or weeks will be needed in another 10 years time to play problem tapes? Shai בתאריך 01/04/13 9:38 PM, ציטוט Marie O'Connell: > Hi Shai > > No, I don't find it alarming at all. I have been baking for longer periods > now for a few years as 8 hours just wasn't enough and I had to keep putting > the reel back in the oven. > > Cheers > Marie > > > On Tue, Apr 2, 2013 at 9:32 AM, Shai Drori <[log in to unmask]> wrote: > >> Hi Marie >> Do you find this as alarming as I have that baking times have risen so >> high in the last few years? My record was set last year with Ampex 480 >> quarter inch 2500' tapes needing 5 days to be playable. Really slowed down >> operations. >> Cheers >> Shai >> בתאריך 01/04/13 9:15 PM, ציטוט Marie O'Connell: >> >>> I agree with Richard. I have seen quite a bit of this recently with Ampex >>> 456. And it does make a real mess. I am also finding BASF and AGFA doing >>> this too. They all appear to be slightly too wide for the tape path. >>> >>> I have been baking for much longer periods also, 3 days would be normal >>> for >>> me now. >>> >>> Good luck. >>> >>> Marie >>> >>> >>> On Tue, Apr 2, 2013 at 5:40 AM, Richard L. Hess <[log in to unmask] >>>> **wrote: >>> Hi, Curtis, >>>> I've been baking longer, but edge shedding as you describe is common if >>>> the tape is slit a bit wide (hard to measure, but that is why the event >>>> is >>>> so random--it might be one reel out of a jumbo roll where the slitting >>>> blades were mis-adjusted). >>>> >>>> I don't think 24 hours (my norm these days) would show a difference as I >>>> saw this off some 1/2-inch 456 just recently, but it was only the edge. >>>> >>>> It is frightening, but I'd just vacuum up the little hairs and be done >>>> with it. Remember, those are about a mil wide and you're dealing with >>>> nominally 82-mil (minimum spec'd is 75 mil from Ampex) track width that >>>> doesn't even go completely to the edge, so you probably don't have any >>>> sound on the little hairs. (I did want to write "hares" in honour of the >>>> season. <smile>) >>>> >>>> I would check for debris in the corners of the guides (where the face >>>> meets the top and bottom caps) which can exacerbate this hair-shred but, >>>> overall, if it's coming just from the edges, I think you're safe. >>>> >>>> I see 456 doing this more (though I've seen it more on 1/2-inch than >>>> 1/4-inch). It has also happened on Agfa and BASF, but not regularly. >>>> >>>> I don't have this variant specifically listed, but you might find this >>>> resource of use: >>>> http://richardhess.com/notes/****formats/magnetic-media/**<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/<http://richardhess.com/notes/formats/magnetic-media/magnetic-tapes/analog-audio/degrading-tapes/> >>>> >>>> Good luck! >>>> >>>> Cheers, >>>> >>>> Richard >>>> >>>> >>>> On 2013-04-01 12:10 PM, Peoples, Curtis wrote: >>>> >>>> Hi Richard, >>>>> I believe the tape is Ampex 456, not positive though. The studio >>>>> generally bought Ampex 456 tape. It is a ten inch, quarter inch reel >>>>> (two >>>>> track master recording). For this collection, we bake 8 hours at 130 >>>>> degrees. We have found this to be a suitable process for this >>>>> collection. >>>>> The shredding appears to be from the edges. We are transferring on a >>>>> relatively new Otari MX 5050. The machine was cleaned so I don't have >>>>> pics >>>>> of the shred. They are usually about 3 inches long before breaking and >>>>> are >>>>> about the thickness of fine hair. >>>>> >>>>> Best, >>>>> >>>>> Curtis >>>>> >>>>> -----Original Message----- >>>>> From: Association for Recorded Sound Discussion List [mailto: >>>>> [log in to unmask]**GOV <[log in to unmask]>] On Behalf Of >>>>> Richard L. Hess >>>>> Sent: Monday, April 01, 2013 10:48 AM >>>>> To: [log in to unmask] >>>>> Subject: Re: [ARSCLIST] Sticky SHRED >>>>> >>>>> Hi, Curtis, >>>>> >>>>> Please provide specifics as to type of tape, width, reel type, baking >>>>> process and duration. >>>>> >>>>> Also photographs are really useful. >>>>> >>>>> Is the shredding from the edges only or across the entire width of the >>>>> tape? >>>>> >>>>> What is the playback machine? >>>>> >>>>> Cheers, >>>>> >>>>> Richard >>>>> >>>>> On 2013-04-01 10:35 AM, Peoples, Curtis wrote: >>>>> >>>>> Hi Folks, >>>>>> We have a collection of tapes that have sticky shed and we are baking >>>>>> and transferring them. Things are going as planned except for one >>>>>> tape. It >>>>>> is shredding into fine hair like stands. I thought it needed to be >>>>>> baked >>>>>> longer so I baked it a second time. Same problem. I have seen tape shed >>>>>> before and this looks different. >>>>>> >>>>>> Any help identifying the problem is greatly appreciated. >>>>>> >>>>>> Best, >>>>>> >>>>>> Curtis L. Peoples, Ph.D. >>>>>> Associate Archivist, Crossroads Music Archive, >>>>>> www.crossroadsofmusic.ttu.edu<****http://www.**crossroadsofmusic.<http://www.crossroadsofmusic.> >>>>>> **ttu.edu/<h**ttp://www.crossroadsofmusic.**ttu.edu/<http://www.crossroadsofmusic.ttu.edu/> >>>>>> Unit Head, Crossroads Recording Studio, >>>>>> http://library.ttu.edu/****crossroadsrecordingstudio/<http://library.ttu.edu/**crossroadsrecordingstudio/> >>>>>> <htt**p://library.ttu.edu/**crossroadsrecordingstudio/<http://library.ttu.edu/crossroadsrecordingstudio/> >>>>>> Director, TTU Americana Ensemble, >>>>>> http://ttuamericanaensemble.****weebly.com/index.html<http://weebly.com/index.html> >>>>>> <http://**ttuamericanaensemble.weebly.**com/index.html<http://ttuamericanaensemble.weebly.com/index.html> >>>>>> >>>>>> Contact Info: >>>>>> Southwest Collection, Texas Tech University P. O. Box 41041 Lubbock, >>>>>> Texas 79409-1041 >>>>>> Email: [log in to unmask] >>>>>> TEL: 806-742-3749 ext. 278 >>>>>> FAX: 806-742-0496 >>>>>> >>>>>> >>>>>> -- >>>> 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> >>>> <http://www.**richardhess.com/tape/contact.**htm<http://www.richardhess.com/tape/contact.htm> >>>> Quality tape transfers -- even from hard-to-play tapes. >>>> >>>> >> -- >> בברכה, >> שי דרורי >> מומחה לשימור והמרה של אודיו וידאו וסרטים 8-35 ממ. >> -- בברכה, שי דרורי מומחה לשימור והמרה של אודיו וידאו וסרטים 8-35 ממ.