Does anyone have a list of all the variations for these two guys and maybe the the inductance cousin the 63. For the 75 I've so far found references to but not what each variation is 75A 75A-S4 75A-S6 75A-S8 75A-S8-YY 75A-S13 75B 75C 75D 75D-YY 100hkz ? 75E -pete