Seems to me that the 8873 has an 11 pin base, but the 8560 base is like a 4CX250. Frank W2FCA -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm