On Sat, 24 Nov 2012 14:27:55 -0800, hr(bob) wrote:

Thoughts, ideas, polite suggestions.

As others have said, this does not appear to be a magnetised head but it
could be that particles from your tapes has collected in the gap(s) on
the the tape head(s). The gap(s) need to be magnetically open so that the
passing tape completes the magnetic circuit and it is a very small gap on
a playback head (of the order of 0.0001 inch).

BTW, if you are using a head demagnetiser never switch it on or off
anywhere near the heads. Move a few feet away before switching off. One
spike and you will have magnetised them!

Many years ago I worked in the dev lab of Marriott Magnetics one of the
original makers of tape heads in the UK. Long gone.



Charlie.



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