Yes that sort of reel drive system is  common to many cassette formats such 
as Compact Cassette,  DAT,  VHS and Beta etc. It's basically a good system 
and normally runs off a dedicated motor. Usually a small felt clutch  pushes 
the central tyre or cog left or right as needed. Sometimes the small clutch 
has too much torque or not enough. Often the tyre goes hard and loses grip. 
Sometimes  cleaning and/or roughening the drive surfaces is enough to 
restore good drive.  Failure here is just one thing that can go wrong with a 
DAT mechanism, leading to poor replay or tape damage.

Tim Gillett,

Western Australia

----- Original Message ----- 
From: "Mickey Clark" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, September 01, 2018 5:03 AM
Subject: Re: [ARSCLIST] DAT players, Care to share your experience with tape 
breakage and 32 kHz capture

>I used to have a Sony DAT . I had an issue with the fast forward and rewind 
>intermittent and slow. The problem is a little two-way clutch in the fast 
>forward mechanism. When the motor turned one way, the clutch would turn a 
>unit that had gears on it - when it turned one way, the assembly would 
>swivel and engage in on direction and when reversed, it would turn the 
>assembly to engage in a different gear. The clutch in mine was too tight 
>and caused drag in the mechanism, resulting in the FF/RW drag-Mickey
> -----Original Message----- 
> From: Tim Gillett
> Sent: Thursday, August 30, 2018 9:49 PM
> To: [log in to unmask]
> Subject: Re: [ARSCLIST] DAT players, Care to share your experience with 
> tape breakage and 32 kHz capture
> Hi Karl,
> DAT machines had delicate, tiny, fiddly mechanisms even when new and these
> days the situation is much  worse  re parts and expertise to keep them
> going. The tapes are very thin and vulnerable. I wouldnt put a recorded 
> tape anywhere near a player unless I was very confident both  machine and
> tape were in top condition beforehand. It's so easy on these miniature 
> tape
> formats to  damage the tape even just a little, and not even know it's
> happening, but enough to make retrieval of the contents impossible.  I
> dont know if some DAT players are more gentle on tapes than others but 
> these
> days I suspect damage to tapes is  less from the design of the original
> machine and more failure to maintain the mechanism in tip top condition.
> Tim Gillett
> Perth,
> Western Australia.
> ----- Original Message ----- 
> From: "Karl E. Fitzke" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, August 31, 2018 4:40 AM
> Subject: [ARSCLIST] DAT players, Care to share your experience with tape
> breakage and 32 kHz capture
> Hi, everyone.
> Anybody out there want to venture what DAT machines are more or less 
> gentle
> with tapes?  And/or talk about their experience with tape breakage?
> I broke two tapes earlier this week, both of then near the end of recorded
> program, I think when trying to fastforward past the end of recorded
> program.
> Inspecting the breaks, the remaining portion of blank tape took some 
> careful
> effort to unravel a bit and repair.  So I'm guessing each tape hadn't been
> exercised beyond that point since the day the tape was manufactured!
> So, best to just play DATs (slow/gentle pull away from supply reel) - no
> fastforwarding (fast/abrupt tugging from supply reel)?  Might some
> make/model handle a situation like this better or worse?
> While we are at it, any recommended means of Digital-to-Digital at 32kHz?
> Same goes for 32 kHz data playback in DAWs that (in my mind rightly) don't
> employ SRC like Quicktime or VLC will.  Neither of my two converter box
> make/models support 32kHz.  Looking at RME ADI-2 already.
> Of course we could do SRC, but I'd rather not.  See for instance, ARSC 
> Guide
> to Audio Preservation page 112.
> -Karl
> Karl Fitzke
> Audio/Visual Specialist
> 214 Olin Library
> Ithaca, NY 14853
> 607-255-5521
> [log in to unmask]
> ---
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