400E cards were exclusive to the ITT product line and were always designed to work with bridged ringing. They had their own version of 400D cards prior with nearly-identical circuitry to that of the WE versions.

@Chris: Holy crap! You managed to get a 118A ring generator AND the bracket for it. As Arthur would say, both are made of "unobtanium", even back in the day when they were in current production. Good score!


Ed Vaughn, MBSWWYPBX