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Doubled up video head appearence?

Discussion in 'Electronic Repair' started by N_Cook, Sep 17, 2013.

  1. N_Cook

    N_Cook Guest

    I've never, in earnest , removed an individual head and fixed it to
    another drum. If enough of the ferrite was remaining on the original I
    would clamp the drum to a stout plate and manouevre a vinyl record
    stylus tip adjascent to the gap in the ferrite and fix in place and
    another such stylus on the other side, before undoing the screw holding
    the brass in place. Then gently move the replacement head into position
    and somehow clamp the brass to the drum before tightening the screw
     
  2. N_Cook

    N_Cook Guest

    my repair did not work , so whatever turns up on ebay as "needs repair"
    or even working order
     
  3. Jeroni Paul

    Jeroni Paul Guest

    I remember when I did this experiment I noticed both drums had a yellow head and a green head, the color surrounding the soldering pads. At first I thought that color identified the odd/even field head but to my surprise it did not, so after the transplant I ended with a working drum with two yellowheads.

    I found that the second time I did the transplant because just like the first I did I was expecting it to work but it did not. While I was checking the ferrite with a magnifier I noticed the gap inclination of the head I installed was the same as the head already in the drum. The color in the head pads mislead me to take the wrong head from the donor drum.
     
  4. N_Cook

    N_Cook Guest

    Anyone know where to find the dimensional specs/standards of helical
    scan systems (before wear anyway) particularly diameter between head
    face surfaces and angular offsets , particularly for DAT and video8
    systems?
     
  5. N_Cook

    N_Cook Guest

    By not work, pre-recorded Bond movie on a DAT tape plays a useable B&W
    image but absolutely no sound . In 6 chanel PCM audio mode no sound on
    any of the 6 chanels of a tape with n6ch audio recorded to it
     
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