IT IS MODEL 480 BASE AMP.......2 TUBER...BOARD#751118......IT HAS SOME PARTS MISSING, CANT TELL MUCH FROM DRAWING,BUT KNOW THE DIODES ARE MISSING,& LOOK,S LIKE SOMETHING ELSE WAS NEXT TO THE DIODE,S....ALL ARE AT THE END OF THE BIG CAPS,BUT IT DOES HAVE THE DISK CAP,S THERE,BUT SOMETHING ELSE MISSING............NEED PICS IF POSSIBLE,OR SOMETHING.MY EMAIL ..DONEMAD@NETZERO.COM..... THANKS FOR ANY HELP

Some of the missing parts near the big caps could be the bleeder resistors. While I don't have the same amp as you, most better amps have the bleeder resistors to bleed off the power from the big caps as a safety item. That way, your caps are not storing all that energy. The diodes may be something like a 1N4007. I'm not sure about the numbers. Just guessing on the diodes, but I think thats what mine has. I'm just going by memory. I'd have to open the bottom of my amp up and see.