I made an aluminum knob for my Corsair II. Its about as big in diameter as the skirt dial and about 1.25" thick. I think it helps the radio. 73, Jerry, K0CQ -- 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