<HTML>Gregor I also have tinnitus.  Rather a more severe case than some.  I have a constant ringing in my ears  (primarily my right ear) that never ceases. I have been told that it is irreversable.  I cope with my tinnitus by using a visual aid in the form of an ETD.  My current favored one is the Peterson ST.  I have tried many other ETDs, and they are all good in their own fashions. I contracted my tinnitus by my own actions.  For many years I was a Police Officer.  One of my functions was a Range Officer.  I spent many hours on the range, and through my own stupidity, did not use adequate ear protection.  Ergo, the constant high db discharges permenantly damaged my ear drums. While I do not advocate the use of ETDs over Aural tuning, it would be nigh well impossible for me to tune adequately without the use of my ETD. D.H.</HTML>