That would be a little too far to drive. I'm in Indy! I thought perhaps I'd bring my tube collection over for you to try, before making any purchases. Here's a pair of the correct Sylvania VT231/6SN7GT tubes from a seller I've dealt with and trust very much: (http://cgi.ebay.com/Sylvania-6SN7GT-6SN7-VT-231-VT231-matched-NOS-pair_W0QQitemZ120282753596QQihZ002QQcategoryZ64629QQssPageNameZWDVWQQrdZ1QQcmdZViewItem) Angie and Steve are in Australia, but get their tubes to you very quickly. If you can get those cheaply enough, and like them: The TungSol roundplates will REALLY make you happy! I'm saving a couple pair for when the TungSols and Sylvania 6SN7W's disappear altogether.