I have been lucky to get these two like new beauties. The 500 has been gone over by the Swan Dr, and she is really nice,no probs..I Just got the Dentron,orig tubes..looks very low hrs on orig tubes. I would Like to use these two oldies together( I know i would have to drive the swan lower pwr) but what about the connections? keying grid currents? etc ? With all the experience out here Im expecting to learn alot here...be gentile ,THANK YOU ALL IN ADVANCE. Clipperton L serial number 99..and Swan 500 CX..Compatable ?