Ken: I live in Mobile and have a copy of the Ten-Tec 540 (Triton-IV) Manual. I also have many parts for the Triton-IV. I used to be a dealer for Ten-Tec in the 70's and 80's and I have one of almost every manal from the 509 to the Corsair and most accessories. I can copy the manual for you if you would like. Jim Younce K4ZM K2 SN:18 K2 Field Tester