Hao

Hi, I'm new to the boards here. I had purchased a second-hand casuple diode (58mm base diameter, 24mm height), but have no idea as to what its specifications are ??? Printed onto its ceramic side are the letters and numbers : NL - R34B16B 9033 Engraved on its base is CJ7771 118 Its maximum current should be quite large, but I don't want to risk frying it. ;D Any help would be deeply appreciated :) Thanks!