I have a model 285 cw filter (500hz) that is used in a Corsair or Omni V,VI. $50 ppd in 48 Bob, KQ7J bens@valint.net -- FAQ on WWW: http://www.contesting.com/tentecfaq.htm Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems: owner-tentec@contesting.com Search: http://www.contesting.com/km9p/search.htm