Date:Fri, 11 Nov 2005 12:10:15 -0500
Reply-To:Association for Recorded Sound Discussion List
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Sender:Association for Recorded Sound Discussion List
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From:"Richard L. Hess" <[log in to unmask]>
Subject:Loss of Lubricant and A- and B-winds
Comments:To: AMPEX LIST <[log in to unmask]>, [log in to unmask]Content-Type:text/plain; charset="us-ascii"; format=flowed
Ok, an interesting thought occurred to me through an off-list discussion.
In normal practice, as I understand it, the "Lubricant Package" was
thrown into the coating vat and is coated on the tape along with the oxide.
So, for A-wind tapes, the lubricant theoretically lubricates
everything - tape passing over guides and heads.
I'm starting to wonder where the stiction occurs in cassettes, since
they are B-wind, the back of the tape passes over guides (most are
rotating) but doesn't have any lubrication. I'm wondering if we can
glean anything from the German Radio B-wind tapes though I know most
of those are rotating guides as well.
I had assumed (I know that's dangerous) that most of the stiction in
cassettes was from the heads themselves.
Any thoughts would be appreciated.
I hypothesize that LoL will become a growing problem - and baking
exacerbates it.
Cheers,
Richard
Richard L. Hess [log in to unmask]
Aurora, Ontario, Canada http://www.richardhess.com/
Detailed contact information: http://www.richardhess.com/tape/contact.htm