John, Dillsburg Aeroplane Works in Dillsburg PA always has a huge stock of 4130 Chrome-Moly steel tubing. 73! Frank W3LPL donovanf@sgate.com -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Problems: K7LXC@contesting.com Sponsored by Akorn Access, Inc & N4VJ / K4AAA