Hey all, I picked up a RM15 (rackmount 515) a few weeks ago and aside from missing most of its tubes it is in impeccable condition. What's peculiar is next to the s/n is a plate that says MOD 801C. Any and all information I can find on the 515/515A goes up to MOD 760C, and associated engineering documentation. I cant find a thing on MOD801C. Anyone hear of such a thing?
rivet_head