Conference stkhlm::magtape

3651.0. "TL812/TZ88 leader-tape differences..." by NOGBAD::ROBSON () Mon Feb 10 1997 23:38

    
     I have had a look at some other references in this notesfile,
    but did not see a reference to my query here; apologies
    in advance if this has been asked before.
    
     I noticed that the leader tape in the TZ88's within a TL812
    jukebox are different to the TZ88 leader tape part number
    (70-28824-01) in that the broken leader tape removed has
    an additional hole (the same distance to the right of the
    central rectangular hole as the circular hole to the left
    of the rectangular hole), and also has four 'scores' like
    gramophone record grooves running linearly along each side,
    ending at the rightmost hole.
    
     The 70-28824-01 (which is the same part which is fitted
    in TF85, and is listed in the TZ88 parts listing) is working
    OK, but I was wondering if this is the correct part, bearing
    in mind the apparant difference as described; and if not,
    what would be the required leader-tape part number for
    a TZ88 operating within a TL812.
    
    Brian
    

    
    All TZ88 and TZ87-AV, TZ87N-AV have grooved leader. This is done by
    design to prolong head life in heavily swaps environment like tape
    library. You can replace non-grooved leader with grooved leader BUT
    DO NOT replace grooved with non-grooved.
    
    Contact logistic (MCS) for correct part number.
    
    T.

    
    Thanks T.,
    
      The -AV variant seems to be the pointer as regards the
    grooved leader, I have been unable to find reference to
    TZ88-AV but have found TZ87N-AV in the TL810 parts listing,
    which gives the leader tape part number as 70-28824-02
    (I had the -01 variant which is not grooved).
    
      I will order a 70-28824-02 and update here whether this
    is grooved.
    
    Thanks again,
    
    Brian
    

    
     We could not obtain a 70-28824-02 but as per note 3675
    the part number for the grooved leader tape is 29-33443-01.
    
     I have a 29-33443-01 in my hand at the moment and can confirm that
    this is indeed the correct part.
    
    Thanks again,
    
    Brian