Bad batch, or storage, or anything. Because I was cautious I tried only one
reel. That was a success. I have now tried another dozen, so far 100%
success. Whoever made that tape made it on quality mylar I guess. After
baking it works flawlessly, so far. I have about 300 reels to work with so
I'll be able to report success rate when done in a few months. It's a back
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On Wed, Nov 4, 2020 at 8:15 PM Scott D. Smith <[log in to unmask]>
> I would be VERY careful about baking the blue reels. That tape is
> extremely thin, and may warp in the process, depending on tension of the
> pack. Also, if you are using an SN machine to play the tapes back, the
> rather low tape tension may aggravate dropouts (although the thinner
> tape helps).
> I would definitely try vacuum extraction before baking.
> Strange, I have done quite a number of SN tape transfers over the years,
> and have never run into an issue with binder hydrolysis or shedding.
> Could have been a bad batch I suppose.
> Scott D. Smith CAS
> Chicago Audio Works, Inc.
> On 11/2/2020 6:17 AM, Shai Drori wrote:
> > Hoping to find some answers from the group about a problem I am facing.
> > digitizing a few hundred Nagra SN tapes. These are reel to reel tapes in
> > the width of a cassette. There are three lengths, red, green, and blue
> > reels, with blue being the thinnest and longest tape
> > the red and green tapes play fine but the blue tapes are stuck so each
> > layer is glued to the layer before it. When I try to play the tapes they
> > squeal and the magnetic particles sometimes are removed from the base and
> > stay stuck to the back of the layer before. These tapes are not
> > black-coated and resemble really thin c-120 cassette material.
> > Any suggestions are welcome.
> > Cheers
> > Shai Drori
> > Expert digitization services for Audio Video
> > 3K scanning for film 8mm-35mm
> > Timeless Recordings Music Label
> > www.audiovideofilm.com
> > [log in to unmask]